Document:

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                            STOCK PURCHASE WARRANT
                            ----------------------

Date of Issuance: November 17, 2000                    Certificate No. W-[_____]

          FOR VALUE RECEIVED, Electric Fuel Corporation, a Delaware corporation
(the "Company"), hereby grants to Josephthal & Co., Inc. or its registered
assigns (the "Registered Holder") the right to purchase from the Company 100,000
shares of common stock of the Company, par value $.01 per share ("Common Stock")
(as adjusted from time to time hereunder) at a price per share of $9.63 (as
adjusted from time to time hereunder, the "Exercise Price"). Certain capitalized
terms used herein are defined in Section 5 hereof. The amount and kind of
securities obtainable pursuant to the rights granted hereunder and the purchase
price for such securities are subject to adjustment pursuant to the provisions
contained in this Warrant.

     This Warrant is subject to the following provisions:

     Section 1.  Exercise of Warrant.
                 -------------------

          1.1.    Exercise Period.  The Registered Holder may exercise, in whole
                  ---------------
or in part, the purchase rights represented by this Warrant at any time and from
time to time after November 17, 2000 (hereinafter, the "Closing Date") to and
including 5:00 p.m., New York time, on the fifth anniversary thereof (the
"Exercise Period").

          1.2.    Exercise Procedure.
                  ------------------

                  (i)    This Warrant shall be deemed to have been exercised
when the Company has received all of the following items (the "Exercise Time"):

                        (a)  a completed Exercise Agreement, as described in
     paragraph 1.3 below, executed by the Person exercising all or part of the
     purchase rights represented by this Warrant (the "Purchaser");

                        (b)  this Warrant, or a replacement Warrant issued
     pursuant to Section 9 hereof, or a new Warrant issued pursuant to Section
     1.2(ii) hereof;

                        (c)  if this Warrant is not registered in the name of
     the Purchaser, an Assignment or Assignments evidencing the assignment of
     this Warrant to the Purchaser, in which case the Registered Holder shall
     have complied with the provisions set forth in Section 7 hereof; and

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                        (d)  either (1) a check or wire transfer in immediately
     available funds payable in US Dollars to the Company in an amount equal to
     the product of the Exercise Price multiplied by the number of shares of
     Common Stock being purchased upon such exercise (the "Aggregate Exercise
     Price"), (2) the surrender to the Company of debt or equity securities of
     the Company having a Fair Market Value equal to the Aggregate Exercise
     Price of the Common Stock being purchased upon such exercise (provided,
     that for purposes of this subparagraph, the Fair Market Value of any note
     or other debt security or any preferred stock shall be deemed to be equal
     to the aggregate outstanding principal amount or liquidation value thereof
     plus all accrued and unpaid interest thereon or accrued or declared and
     unpaid dividends thereon) or (3) a written notice to the Company that the
     Purchaser is exercising the Warrant (or a portion thereof) on a "cashless"
     basis in exchange for that number of shares of Common Stock equal to the
     product of (x) the number of shares as to which such Warrants are being
     exercised multiplied by (y) a fraction, the numerator of which is the
     Market Price (as defined herein) of the Common Stock less the Exercise
     Price and the denominator of which is such Market Price. Solely for the
     purposes of this Section 1.2(i)(d), Market Price shall be calculated either
     (i) on the date on which the Form of Election to Purchase annexed to such
     Warrant Certificate as to such exercise is deemed to have been sent to the
     Company pursuant to Section 10 hereof (the "Notice Date") or (ii) as the
     average of the Market Prices for each of the five trading days preceding
     the Notice Date, whichever results in a higher Market Price.

                  (ii)   Certificates for shares of Common Stock purchased upon
exercise of this Warrant shall be delivered by the Company to the Purchaser
within three (3) Business Days after the date of the Exercise Time. Unless this
Warrant has expired or all of the purchase rights represented hereby have been
exercised, the Company shall prepare a new Warrant, substantially identical
hereto, representing the rights formerly represented by this Warrant which have
not expired or been exercised and shall within such three-day period, deliver
such new Warrant to the Person designated for delivery in the Exercise
Agreement.

                  (iii)  The Common Stock issuable upon the exercise of this
Warrant shall be deemed to have been issued to the Purchaser at the Exercise
Time, and the Purchaser shall be deemed for all purposes to have become the
record holder of such Common Stock at the Exercise Time.

                  (iv)   The issuance of certificates for shares of Common Stock
upon exercise of this Warrant (the "Warrant Shares") shall be made without
charge to the Registered Holder or the Purchaser for any issuance tax in respect
thereof or other cost incurred by the Company in connection with such exercise
and the related issuance of shares of Common Stock. Each share of Common Stock
issuable upon exercise of this Warrant shall upon payment of the Exercise Price
therefor, be fully paid and nonassessable and free from all liens and charges
with respect to the issuance thereof.

                  (v)    The Company shall not close its books against the
transfer of this Warrant or of any share of Common Stock issued or issuable upon
the exercise of this Warrant in any manner which interferes with the timely
exercise of this Warrant. The Company shall from time to time take all such
action as may be necessary to assure that the par value per share of the
unissued Common

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Stock acquirable upon exercise of this Warrant is at all times equal to or less
than the Exercise Price then in effect.

                  (vi)   The Company shall assist and cooperate with any
Registered Holder or Purchaser required to make any governmental filings or
obtain any governmental approvals prior to or in connection with any exercise of
this Warrant (including, without limitation, making any filings required to be
made by the Company); provided, however, in no event will the Company be
required to (i) qualify generally to do business in any jurisdiction where it is
not then so qualified, (ii) subject itself to taxation in any such jurisdiction,
(iii) consent to general service of process in any such jurisdiction or (iv)
provide any undertaking required by such other securities or "blue sky" laws or
make any change in its charter or bylaws that the Board of Directors determines
in good faith to be contrary to the best interest of the Company and its
stockholders.

                  (vii)  Notwithstanding any other provision hereof, if an
exercise of all or any portion of this Warrant is to be made in connection with
a registered public offering, a sale of the Company or any transaction or event,
including a Qualified Public Offering, such exercise may, at the election of the
holder hereof, be conditioned upon the consummation of such transaction or event
in which case such exercise shall not be deemed to be effective until the
consummation of such transaction or event.

                  (viii) The Company shall at all times reserve and keep
available out of its authorized but unissued shares of Common Stock solely for
the purpose of issuance upon the exercise of the Warrants, such number of shares
of Common Stock as are issuable upon the exercise of all outstanding Warrants.
All shares of Common Stock which are so issuable shall, when issued, be duly and
validly issued, fully paid and nonassessable and free from all taxes, liens and
charges with respect to the issuance thereof. The Company shall take all such
actions as may be reasonably necessary to assure that all such shares of Common
Stock may be so issued without violation of any applicable law or governmental
regulation or any requirements of any domestic securities exchange upon which
shares of Common Stock may be listed (except for official notice of issuance
which shall be promptly delivered by the Company upon each such issuance). The
Company shall not take any action which would cause the number of authorized but
unissued shares of Common Stock to be less than the number of such shares
required to be reserved hereunder for issuance upon exercise of the Warrants.
The Company will use its best efforts to cause the shares of Common Stock,
promptly upon such exercise, to be listed on any domestic securities exchange
upon which shares of Common Stock or other securities constituting such shares
of Common Stock are listed at the time of such exercise.

                  (ix)   So long as any Warrants remain outstanding, the Company
shall timely file (within applicable extension periods) all reports required to
be filed with the SEC pursuant to the Exchange Act, and the Company shall not
terminate its status as an issuer required to file reports under the Exchange
Act even if the Exchange Act or the rules and regulations thereunder would
permit such termination. In addition, the Company shall take all actions
necessary to continue to meet the "registrant eligibility" requirements set
forth in the general instructions to Form S-3 or any successor form thereto, to
continue to be eligible to register the resale of its unissued Common Stock

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acquirable upon exercise of this Warrant on a registration statement on Form S-3
under the Securities Act.

          1.3.  Exercise Agreement.  Upon any exercise of this Warrant, the
                ------------------
Exercise Agreement shall be substantially in the form set forth in either
Exhibit I or Exhibit II attached hereto, except that if the shares of Common
---------    ----------
Stock are not to be issued in the name of the Person in whose name this Warrant
is registered, the Exercise Agreement shall also state the name of the Person to
whom the certificates for the shares of Common Stock are to be issued, and if
the number of shares of Common Stock to be issued does not include all the
shares of Common Stock purchasable hereunder, it shall, subject to applicable
Federal and state securities laws, also state the name of the Person to whom a
new Warrant for the unexercised portion of the rights hereunder is to be
delivered.  Such Exercise Agreement shall be dated the actual date of execution
thereof.

          1.4.  Fractional Shares.  If the Common Stock is listed on any
                -----------------
securities exchange or quoted on the Nasdaq Stock Market System or the over-the-
counter market and a fractional share of Common Stock would, but for the
provisions of this paragraph 1.4, be issuable upon exercise of the rights
represented by this Warrant, the Company shall, within five (5) Business Days
after the date of the Exercise Time, deliver to the Purchaser a check payable to
the Purchaser in lieu of such fractional share in an amount equal to the
difference between Fair Market Value of such fractional share as of the date of
the Exercise Time and the Exercise Price of such fractional share.

          Section 2.  Adjustment of Exercise Price and Number of Shares of
                      ----------------------------------------------------
Common Stock.  In order to prevent dilution of the rights granted under this
------------
Warrant and grant the holder hereof certain additional rights, the Exercise
Price and the number of shares of Common Stock obtainable upon exercise of this
Warrant shall be subject to adjustment from time to time as provided in this
Section 2.

          2.1.  Subdivision or Combination of Common Stock.  If the Company at
                ------------------------------------------
any time subdivides (by any stock split, stock dividend, recapitalization or
otherwise) one or more classes of its outstanding shares of Common Stock into a
greater number of shares, the Exercise Price in effect immediately prior to such
subdivision shall be proportionately reduced and the number of shares of Common
Stock obtainable upon exercise of this Warrant shall be proportionately
increased.  If the Company at any time combines (by reverse stock split or
otherwise) one or more classes of its outstanding shares of Common Stock into a
smaller number of shares, the Exercise Price in effect immediately prior to such
combination shall be proportionately increased and the number of shares of
Common Stock obtainable upon exercise of this Warrant shall be proportionately
decreased.

          2.2.  Reorganization, Reclassification, Consolidation, Merger or Sale.
                ---------------------------------------------------------------
Any recapitalization, reorganization, reclassification, consolidation, merger,
sale of all or substantially all of the Company's assets or other transaction,
in each case which is effected in such a way that the holders of Common Stock
are entitled to receive (either directly or upon subsequent liquidation) stock,
securities or assets with respect to or in exchange for Common Stock is referred
to herein as "Organic Change."  Prior to the consummation of any Organic Change,
the Company shall make appropriate provision (in form and substance satisfactory
to the Registered Holders of the Warrants representing a majority of the Common
Stock obtainable upon exercise of all Warrants then

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outstanding) to insure that each of the Registered Holders of the Warrants shall
thereafter have the right to acquire and receive, in lieu of or addition to (as
the case may be) the shares of Common Stock immediately theretofore acquirable
and receivable upon the exercise of such holder's Warrant, such shares of stock,
securities or assets as may be issued or payable with respect to or in exchange
for the number of shares of Common Stock immediately theretofore acquirable and
receivable upon exercise of such holder's Warrant had such Organic Change not
taken place. In any such case, the Company shall make appropriate provision (in
form and substance satisfactory to the Registered Holders of the Warrants
representing a majority of the Common Stock obtainable upon exercise of all
Warrants then outstanding) with respect to such holders' rights and interests to
insure that the provisions of this Section 2 and Sections 3 and 4 hereof shall
thereafter be applicable to the Warrants. The Company shall not effect any such
consolidation, merger or sale, unless prior to the consummation thereof, the
successor entity (if other than the Company) resulting from consolidation or
merger or the entity purchasing such assets assumes by written instrument (in
form and substance satisfactory to the Registered Holders of Warrants
representing a majority of the Common Stock obtainable upon exercise of all of
the Warrants then outstanding), the obligation to deliver to each such holder
such shares of stock, securities or assets as, in accordance with the foregoing
provisions, such holder may be entitled to acquire.

          2.3.  Notices.
                -------

          (i)   Immediately upon any adjustment of the Exercise Price, the
Company shall give written notice thereof to the Registered Holder, setting
forth in reasonable detail and certifying the calculation of such adjustment.

          (ii)  The Company shall give written notice to the Registered Holder
at least twenty (20) days prior to the date on which the Company closes its
books or takes a record (A) with respect to any dividend or distribution upon
the Common Stock, (B) with respect to any pro rata subscription offer to holders
of Common Stock or (C) for determining rights to vote with respect to any
Qualified Public Offering, Liquidation Event, Organic Change or other
dissolution or liquidation.

          (iii) The Company shall also give written notice to the Registered
Holders at least twenty (20) days prior to the date on which any Qualified
Public Offering, Liquidation Event, Organic Change or other dissolution or
liquidation shall take place.

          Section 3.  Liquidating Dividends.  If the Company declares or pays a
                      ---------------------
dividend upon the Common Stock payable otherwise than in cash out of earnings or
earned surplus (determined in accordance with generally accepted accounting
principles, consistently applied) except for a stock dividend payable in shares
of Common Stock (a "Liquidating Dividend"), then the Company shall pay to the
Registered Holder of this Warrant at the time of payment thereof the Liquidating
Dividend which would have been paid to such Registered Holder on the Common
Stock had this Warrant been fully exercised immediately prior to the date on
which a record is taken for such Liquidating Dividend, or, if no record is
taken, the date as of which the record holders of Common Stock entitled to such
dividends are to be determined.

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          Section 4.  Purchase Rights.  If at any time the Company grants,
                      ---------------
issues or sells any Options, Convertible Securities or rights to purchase stock,
warrants, securities or other property pro rata to the record holders of any
class of Common Stock (the "Purchase Rights"), then the Registered Holder of
this Warrant shall be entitled to acquire, upon the terms applicable to such
Purchase Rights, the aggregate Purchase Rights which such holder could have
acquired if such holder had held the number of shares of Common Stock acquirable
upon complete exercise of this Warrant immediately before the date on which a
record is taken for the grant, issuance or sale of such Purchase Rights, or, if
no such record is taken, the date as of which the record holders of Common Stock
are to be determined for the grant, issue or sale of such Purchase Rights.

          Section 5.  Definitions.  The following terms have meanings set forth
                      -----------
below:

          "Board of Directors" means the board of directors of the Company.
           ------------------

          "Business Day" means any day other than a Saturday, a Sunday or a day
           ------------
on which banks in New York City are authorized or obligated by law or executive
order to close.

          "Common Stock" means the Company's Common Stock, par value $0.01 per
           ------------
share, and except for purposes of the shares obtainable upon exercise of this
Warrant, any capital stock of any class of the Company hereafter authorized
which is not limited to a fixed sum or percentage of par or stated value in
respect to the rights of the holders thereof to participate in dividends or in
the distribution of assets upon any liquidation, dissolution or winding up of
the Company.

          "Convertible Securities" means any stock or securities (directly or
           ----------------------
indirectly) convertible into or exchangeable for Common Stock.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.
           ------------

          "Fair Market Value" means as to any security, the greater of either
           -----------------
(i) the closing price on the day "Fair Market Value" is to be determined or (ii)
the average of the closing prices of such security's sales on the New York Stock
Exchange, the American Stock Exchange or any other domestic securities exchanges
on which such security may at the time be listed, or, if there have been no
sales on any such exchange on any day, the average of the highest bid and lowest
asked prices on all such exchanges at the end of such day, or, if on any day
such security is not so listed, the average of the representative bid and asked
prices quoted in the Nasdaq Stock Market as of 4:00 P.M., New York time, on such
day, or, if on any day such security is not quoted in the Nasdaq Stock Market,
the average of the highest bid and lowest asked prices on such day in the
domestic over-the-counter market as reported by the National Quotation Bureau,
Incorporated, or any similar successor organization (collectively, a "Securities
Exchange"), in each such case averaged over a period of three (3) days
consisting of the day as of which "Fair Market Value" is being determined and
the two (2) consecutive Business Days prior to such day.  If at any time such
security is not listed or quoted on any Securities Exchange, the "Fair Market
Value" shall be the fair value thereof determined jointly by the Company and the
Registered Holders of Warrants representing a Majority of the Common Stock
purchasable upon exercise of all the Warrants then outstanding; provided, that
if such parties are unable to reach agreement within a reasonable period of
time, such fair value shall

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be determined by an appraiser jointly selected by the Company and the Registered
Holders of Warrants representing a majority of the Common Stock purchasable upon
exercise of all the Warrants then outstanding. The determination of such
appraiser shall be final and binding on the Company and the Registered Holders
of the Warrants, and the fees and expenses of such appraiser shall be paid by
the Company.

          "Liquidation Event" means (a) the liquidation, dissolution or winding
           -----------------
up of the Company, (b) any merger, reorganization or consolidation to which the
Company is a party, except for a merger, reorganization or consolidation in
which the Company is the surviving Company, the terms of the Warrants or Common
Stock are not changed and neither the Warrants nor Common Stock are exchanged
for cash, securities or other property, and after giving effect to such merger,
reorganization or consolidation, the holders of the Company's outstanding
capital stock possessing a majority of the voting power (under ordinary
circumstances) to elect a majority of the Board of Directors immediately prior
to the merger, reorganization or consolidation shall continue to own the
Company's outstanding capital stock possessing the voting power (under ordinary
circumstances) to elect a majority of the Board of Directors, (c) any sale or
transfer of more than 50% of the assets of the Company and its Subsidiaries on a
consolidated basis (measured either by book value in accordance with generally
accepted accounting principles consistently applied or by fair market value
determined in the reasonable good faith judgment of the Board of Directors) in
any transaction or series of transactions and (d) any sale, transfer or issuance
or series of sales, transfers and/or issuances of Common Stock or other
securities by the Company or any holders thereof which results in either (i) any
Person or group of Persons (as the term "group" is used under the Exchange Act),
beneficially owning (as such term is used in the Exchange Act) more than 50% of
the Common Stock outstanding or on a fully diluted basis at the time of such
sale, transfer or issuance or series of sales, transfers and/or issuances or
(ii) Persons beneficially owning the Common Stock outstanding or on a fully
diluted basis at the time of such sale, transfer or issuance or series of sales,
transfers and/or issuances beneficially owning less than 50% of the Common Stock
outstanding or on a fully diluted basis following such sale, transfer or
issuance or series of sales, transfers and/or issuances.

          "Options" means any rights or options to subscribe for or purchase
           -------
Common Stock or Convertible Securities.

          "Person" means an individual, a partnership, a joint venture, a
           ------
corporation, a limited liability company, a trust, an unincorporated
organization and a government or any department or agency thereof.

          "Qualified Public Offering" means the sale, in an underwritten public
           -------------------------
offering registered under the Securities Act, of shares of Common Stock having
an aggregate per share value (based on the aggregate proceeds received by the
Company in such offering, prior to applicable underwriting discounts or
commissions) of at least $20 million.

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          Section 6.  No Voting Rights; Limitations of Liability.  This Warrant
                      ------------------------------------------
shall have no voting rights.  No provision hereof, in the absence of affirmative
action by the Registered Holder to purchase Warrant Shares, and no enumeration
herein of the rights or privileges of the Registered Holder shall give rise to
any liability of such Registered Holder for the Exercise Price of Warrant Shares
acquirable by exercise hereof or as a stockholder of the Company.

          Section 7.  Warrant Transferable.  This Warrant and all rights
                      --------------------
hereunder are transferable, only to any affiliates or employees of Josephthal in
whole or in part, without charge to the Registered Holder, upon surrender of
this Warrant with a properly executed Assignment (in the form of Exhibit III
                                                                 -----------
hereto) at the principal office of the Company.

          Section 8.  Warrant Exchangeable for Different Denominations.  This
                      ------------------------------------------------
Warrant is exchangeable, upon the surrender hereof by the Registered Holder at
the principal office of the Company, for new Warrants of like tenor representing
in the aggregate the purchase rights hereunder, and each of such new Warrants
shall represent such portion of such rights as is designated by the Registered
Holder at the time of such surrender.  All Warrants representing portions of the
rights hereunder are referred to herein as the "Warrants."

          Section 9.  Replacement.  Upon receipt of evidence reasonably
                      -----------
satisfactory to the Company (an affidavit of the Registered Holder shall be
satisfactory) of the ownership and the loss, theft, destruction or mutilation of
any certificate evidencing this Warrant, and in the case of any such loss, theft
or destruction, upon receipt of an unsecured indemnity agreement of the
Registered Holder in form reasonably satisfactory to the Company, or, in the
case of any such mutilation upon surrender of such certificate, the Company
shall (at its expense) execute and deliver in lieu of such certificate a new
certificate of like kind representing the same rights represented by such lost,
stolen, destroyed or mutilated certificate and dated the date of such lost,
stolen, destroyed or mutilated certificate.

          Section 10. Notices.  Except as otherwise expressly provided
                      -------
hereunder, all notices referred to herein shall be in writing and shall be (i)
delivered in person, (ii) transmitted by facsimile, (iii) sent by registered or
certified mail, postage prepaid with return receipt requested, or (iv) sent by
reputable overnight courier service, fees prepaid, to (x) the Company, at its
principal executive offices and (y) to any Registered Holder, at such Registered
Holder's address as it appears in the records of the Company (unless otherwise
indicated by any such Registered Holder).  Notices shall be deemed given upon
personal delivery, upon receipt of return receipt in the case of delivery by
mail, upon acknowledgment by the receiving facsimile machine or one day
following deposit with an overnight courier service.

          Section 11. Amendment and Waiver.  Except as otherwise provided
                      --------------------
herein, the provisions of the Warrants may be amended and the Company may take
any action herein prohibited, or omit to perform any act herein required to be
performed by it, only if the Company has obtained the written consent of the
Registered Holders of Warrants representing a majority of the shares of Common
Stock obtainable upon exercise of outstanding Warrants; provided, that no such
action may change the Exercise Price of the Warrants or the number of shares or
class of stock obtainable upon exercise of each Warrant without the written
consent of the Registered Holders of

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Warrants representing a majority of the shares of Common Stock obtainable upon
exercise of the Warrants represented by this Warrant and the attached Warrant
Certificate.

          Section 12. Warrant Register.  The Company shall maintain at its
                      ----------------
principal executive offices books for the registration and the registration of
transfer of Warrants.  The Company may deem and treat the Registered Holder as
the absolute owner hereof (notwithstanding any notation of ownership or other
writing hereon made by anyone) for all purposes and shall not be affected by any
notice to the contrary.

          Section 13. GOVERNING LAW.  THIS WARRANT SHALL BE GOVERNED BY AND
                      -------------
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT GIVING
EFFECT TO ITS CONFLICT OF LAWS PRINCIPLES.  THE PARTIES HERETO FURTHER AGREE AND
ACKNOWLEDGE THAT ANY DISPUTE OR CONTROVERSY ARISING OUT OF OR IN ANY MANNER
WHATSOEVER RELATING TO THIS WARRANT SHALL BE BROUGHT IN THE COURTS OF THE STATE
OF NEW YORK OR THE UNITED STATES OF AMERICA FOR THE SOUTHERN DISTRICT OF NEW
YORK LOCATED IN THE STATE OF NEW YORK, AND BY EXECUTION AND DELIVERY OF THIS
WARRANT HEREBY (i) ACCEPTS THE JURISDICTION OF THE AFORESAID COURTS; (ii)
IRREVOCABLY AGREES TO BE BOUND BY ANY JUDGMENT OF ANY SUCH COURT WITH RESPECT TO
THIS WARRANT; AND (iii) IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY
LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF VENUE,
COURT, ACTION OR PROCEEDING WITH RESPECT TO THIS WARRANT BROUGHT IN ANY SUCH
COURT AND FURTHER IRREVOCABLY WAIVES ANY SUCH CLAIM THAT ANY SUCH SUIT, ACTION
OR PROCEEDING BROUGHT IN ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT
FORUM.

          Section 14. Specific Performance. The Company, on the one hand, and
                      --------------------
the holder of this Warrant, on the other hand, acknowledge that money damages
would not be a sufficient remedy for any breach of this Warrant. It is
accordingly agreed that the parties shall be entitled to specific performance
and injunctive relief as remedies for any such breach, these remedies being in
addition to any of the remedies to which they may be entitled at law or equity.

          Section 16. Remedies Cumulative.  Except as otherwise provided
                      -------------------
herein, the remedies provided herein shall be cumulative and shall not preclude
the assertion by any party hereto of any other rights or the seeking of any
other remedies against any other party hereto.

          Section 17. No Third Party Beneficiaries.  Except as specifically set
                      ----------------------------
forth or referred to herein, nothing herein is intended or shall be construed to
confer upon any person or entity other than the parties hereto and their
successors or assigns, any rights or remedies under or by reason of this
Warrant.

          Section 18. Severability.  If any term, provision, covenant or
                      ------------
restriction of this Warrant is held by a court of competent jurisdiction to be
invalid, void or unenforceable, the

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remainder of the terms, provisions, covenants and restrictions of this Warrant
shall remain in full force and effect and shall in no way be affected, impaired
or invalidated.

          Section 19. Entire Agreement; Modification.  This Warrant contains
                      ------------------------------
the entire understanding between the parties hereto with respect to the subject
matter hereof and may not be modified or amended except by a writing duly signed
by the party against whom enforcement of the modification or amendment is
sought.

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          IN WITNESS WHEREOF, the Company has caused this Warrant to be signed
and attested by its duly authorized officers under its corporate seal and to be
dated the Closing Date hereof.

                                        ELECTRIC FUEL CORPORATION

__________________________              By:  _______________________________
Witness                                      Name:
                                             Title:

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                                                                       EXHIBIT I

         [FORM OF ELECTION TO PURCHASE PURSUANT TO SECTION 1.2(i)(d)]
                 (Exercise and payment by check or securities)

To:    Dated:

          The undersigned, pursuant to the provisions set forth in the attached
Warrant (Certificate No. W-____), hereby agrees to subscribe for the purchase of
____________ shares of the Common Stock covered by such Warrant and makes
payment herewith in full therefor at the price per share provided by such
Warrant.

                                   Signature:__________________________________

                                   Address:____________________________________
<PAGE>

                                                                      EXHIBIT II

        [FORM OF ELECTION TO PURCHASE PURSUANT TO SECTION 1.2(i)(d)(3)]
                              (Cashless Exercise)

          The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant Certificate, to purchase _________________ shares of
Common Stock all in accordance with the terms hereof and Section 1.2(i)(d)(3) of
the Warrant Agreement.  The undersigned requests that a certificate for such
securities be registered in the name of ________________________________________
____________ whose address is ____________________________________________ and
that such Certificate be delivered to _________________________________________
whose address is ______________________________________________________________.

Dated:

               Signature _____________________________________

               (Signature must conform in all respects to name of holder as
               specified on the face of the Warrant Certificate.)

               _____________________________________
               (Insert Social Security or Other
               Identifying Number of Holder)
<PAGE>

                                                                     EXHIBIT III

              [FORM OF ASSIGNMENT PURSUANT TO SECTION 1.2(i)(c)]

(To be executed by the registered holder if such holder desires to transfer the
Warrant Certificate.)

   FOR VALUE RECEIVED
hereby sells, assigns and transfers unto

_____________________________________________________
    (Please print name and address of transferee)

this Warrant Certificate, together with all right, title and interest therein,
and hereby irrevocably constitutes and appoints _______________________________
Attorney, to transfer the within Warrant Certificate on the books of the within-
named Company, with full power of substitution.

Dated:

        Signature: ___________________________________

        (Signature must confirm in all respects to name of holder as specified
        on the face of the Warrant Certificate.)

               (Insert Social Security or Other Identifying Number of Assignee).<PAGE>   1

                                                                   EXHIBIT 10.15

                            STOCK PURCHASE AGREEMENT

                          DATED AS OF AUGUST 25, 1999,

                                      AMONG

                              INTELLON CORPORATION

                                       AND

                                 THE PURCHASERS
                                  NAMED ON THE
                             SIGNATURE PAGES HEREOF

<PAGE>   2

                              INTELLON CORPORATION
                            STOCK PURCHASE AGREEMENT

       This Stock Purchase Agreement is dated as of August 25, 1999, among
Intellon Corporation, a Florida corporation (the "Company"), and the persons and
entities listed on the signature pages attached hereto who are signatories to
this Agreement (the "Purchasers").

                                    RECITALS

       The Company desires to sell shares of Preferred Stock, par value $.01 per
share, of the Company, which are to be authorized and to be designated "Series C
Convertible Preferred Stock" (the "Series C Preferred Stock"), to the
Purchasers, and the Purchasers desire to purchase the Series C Preferred Stock,
on the terms and subject to the conditions set forth in this Agreement.

       Section 1.    Sale of Series C Preferred Stock; Closings.

              1.1.   Sale of Series C Preferred Stock. Subject to the terms and
conditions of this Agreement, the Company will issue and sell to each Purchaser
set forth on Schedule 1 the number of shares of Series C Preferred Stock of the
Company set forth opposite such Purchaser's name on Schedule 1 hereto, at a
purchase price of $3.50 per share. The Company's agreement with each Purchaser
is a separate agreement and the sale of the Series C Preferred Stock to each
Purchaser is a separate sale.

              1.2.   Closing. Subject to the satisfaction (or the waiver to the
extent permitted) of the conditions to the obligations of the parties to
consummate the transactions contemplated by this Agreement, the initial closing
of the purchase and sale of the Series C Preferred Stock hereunder will be held
on August 27, 1999 or as soon as possible thereafter (the "Initial Closing").

              1.3.   Additional Closings. The Company may, after the Initial
Closing, continue to accept commitments to acquire, and to conduct additional
Closings (each, an "Additional Closing") with respect to the sale of, shares of
Series C Preferred Stock; provided, however, that the aggregate number of shares
with respect to the sale of all Series C Preferred Stock, including shares sold
at the Initial Closing, shall not exceed 2,665,000. The first Additional Closing
(the "First Additional Closing") shall occur on such date as the Company may
determine.

              1.4.   Delivery at Closing. At the Initial Closing or any
subsequent Additional Closing, the Company will deliver to each Purchaser stock
certificates representing the Series C Preferred Stock (and a Series C Preferred
Stock Purchase Warrant in the form of that attached as Exhibit D on the basis of
a Warrant exercisable for seven shares of Series C Preferred Stock for each
eight shares of Series C Preferred Stock purchased) registered in such
Purchaser's name as set forth on Schedule 1 against delivery to the Company by
each Purchaser of (a) an executed counterpart of this Agreement, (b) an executed
counterpart of the Rights Agreement, and (c) payment of the aggregate purchase
price therefor by wire transfer of immediately available funds to an account
designated by the Company.

                                      -2-
<PAGE>   3

              1.5.   Use of Proceeds. The net proceeds from the sale of Series C
Preferred Stock shall be used (i) for accelerating product development, and
employing additional engineering, sales and marketing personnel, (ii) for
product distribution, marketing, advertising and trade shows, and (iii) for
working capital and other general corporate purposes.

       Section 2.    Definitions.

              For purposes of this Agreement:

              2.1.   "Affiliate" means any person directly or indirectly
controlling or controlled by, or under direct or indirect common control, with
the specified person. For purposes of this definition the term "control" means
the possession, direct or indirect, of the power to direct or cause the
direction of the management and policies of such person, whether through the
ownership of voting securities, by agreement or otherwise.

              2.2.   "Closing" means the Initial Closing or any Additional
Closing, as applicable.

              2.3.   "Material Adverse Effect" shall mean a material adverse
effect on the business, properties, earnings, assets, liabilities, prospects or
condition (financial or otherwise) of the Company.

              2.4.   "Rights Agreement" shall mean the Information and
Registration Rights Agreement dated the date of the Closing and to be entered
into among the Purchasers of Series C Preferred Stock and the Company in
connection with this Agreement.

              2.5.   "TAB Agreement" shall mean the Technology Advisory Board
Agreement dated July 31, 1995 entered into among the Company and certain
Purchasers of capital stock of the Company.

              2.6.   "Transaction Agreements" shall mean, collectively, the
Rights Agreement and the TAB Agreement.

              2.7.   "Warrants" shall mean, collectively, the Warrants referred
to in Sections 3.2 (b)(iii) and (iv) of this Agreement.

       Section 3.    Representations and Warranties of the Company.

              The Company hereby represents and warrants to the Purchasers as
follows:

              3.1.   Corporate Organization and Authority. The Company: (a) is a
corporation duly organized, validly existing, authorized to exercise all its
corporate powers, rights and privileges, and is in good standing in the State of
Florida; (b) has the corporate power and corporate authority to own and operate
its properties and to carry on its business as now conducted and as proposed to
be conducted; and (c) is qualified as a foreign corporation in all jurisdictions
in which such qualification is required.

                                      -3-
<PAGE>   4

              3.2.   Capitalization. Immediately prior to the Initial Closing,
the authorized capital of the Company shall consist of (a) 35,000,000 shares of
Preferred Stock with a par value of $.01 per share, of which (i) 15,000,000
shares are designated as Series A Convertible Preferred Stock, 7,555,000 of
which are duly and validly issued, fully-paid, nonassessable and outstanding and
are presently convertible into 7,555,000 shares of Common Stock, (ii) 15,000,000
shares are designated as Series B Convertible Preferred Stock, 10,914,599 of
which are duly and validly issued, fully-paid, nonassessable and outstanding and
are presently convertible into 10,914,599 shares of Common Stock, and (iii)
5,000,000 shares are designated as Series C Convertible Preferred Stock, none of
which are issued or outstanding, and (b) 40,000,000 shares of Common Stock with
a par value of $.01 per share, of which not more than 4,684,327 shares are duly
and validly issued, fully-paid, nonassessable and outstanding, and of which (i)
5,250,000 shares are reserved and subject to issuance upon the exercise of
options (the "Options") and warrants (such warrants not being exercisable for
more than 74,000 shares of common stock); (ii) 7,555,000 shares are reserved for
issuance upon the conversion of the Series A Preferred Stock; (iii) 525,000
shares are reserved for issuance upon exercise of the Warrants issued pursuant
to the Warrant Agreement dated as of March 23, 1994 among the Company, Fidelity
Ventures Limited ("Fidelity"), Investment Advisors, Inc. and Synagen Capital
Partners 94-1; (iv) 248,147 shares are reserved for issuance upon the exercise
of the Warrants issued to Alex. Brown & Sons Incorporated pursuant to separate
Series B Preferred Stock Warrants dated April 15, 1996, June 27, 1996, and June
27, 1996; and (v) 10,914,599 shares are reserved for issuance upon the
conversion of the Series B Preferred Stock. Except as described in or
contemplated by this Agreement or as provided in the Restated Articles of
Incorporation, there are no outstanding warrants, options, conversion
privileges, preemptive rights, or other rights or agreements to purchase or
otherwise acquire or issue any equity securities of the Company.

              3.3.   Subsidiaries. The Company does not presently own, have any
investment in, or control, directly or indirectly, any subsidiary, association
or other business entity. The Company is not a participant in any joint venture
or partnership.

              3.4.   Authorization. All corporate action on the part of the
Company, its officers and directors necessary for the authorization, execution,
delivery and performance of all obligations under this Agreement and the
Transaction Agreements, and for the issuance and delivery of the Series C
Preferred Stock (and the issuance of Common Stock upon conversion of the Series
C Preferred Stock and the Series C Preferred Stock Purchase Warrants (the
"Underlying Shares")) has been taken, and this Agreement and the Transaction
Agreements constitute legally binding and valid obligations of the Company
enforceable in accordance with their terms.

              3.5.   Valid Issuance of Securities. The Series C Preferred Stock,
when issued in accordance with the terms hereof, will be duly and validly
issued, fully-paid and nonassessable and, based in part upon the representations
of the Purchasers in this Agreement, will be issued in compliance with all
applicable federal and state securities laws regarding registration or
qualification. The Underlying Shares have been duly and validly reserved for
issuance and, upon issuance in accordance with the terms of the Restated
Articles of Incorporation, shall be duly and validly issued, fully-paid and
nonassessable and, based in part upon the representations of the Purchasers in
this Agreement, such Underlying Shares if issued at this time would be issued in
compliance with all applicable federal and state securities laws.

                                      -4-
<PAGE>   5

              3.6.   No Conflict. The execution, delivery and performance of
this Agreement and the Transaction Agreements will not result in any violation
of, be in conflict with, or constitute a default under, with or without the
passage of time or the giving of notice: (i) any provision of the Restated
Articles of Incorporation or By-Laws of the Company; (ii) any provision of any
judgment, decree or order to which the Company is a party or by which it is
bound; (iii) any mortgage, indenture, contract or other material agreement,
obligation or commitment to which the Company is a party or by which it or its
assets are bound; or (iv) any law, statute, rule or regulation applicable to the
Company.

              3.7.   Litigation. Except as set forth on Schedule 3.7 hereto,
there is no action, proceeding or investigation pending or threatened, or any
basis therefor known to the Company, that questions the validity, or seeks to
restrain, enjoin or prevent the consummation, of this Agreement, the Transaction
Agreements or any other document or instrument entered into in connection with
the sale of the Series C Preferred Stock or the right of the Company to enter
into this Agreement, the Transaction Agreements or any other such document or
instrument, or that could, either individually or in the aggregate, have a
Material Adverse Effect. There is no judgment, decree, order, rule or regulation
of any court or governmental authority in effect against the Company and the
Company is not in default with respect to any order of any governmental
authority to which the Company is a party or by which it is bound.

              3.8.   Title to Properties, Liens and Encumbrances. The Company
has good and marketable title to all of its properties and assets, both real and
personal, and has good title to all its leasehold interests, and such assets and
properties are subject to no mortgage, pledge, lien, security interest,
conditional sale agreement, encumbrance or charge.

              3.9.   Patents and Other Propriety Rights. The Company owns and
has all right, title and interest to, or the right to use, all patents, patent
applications, trademarks, service marks, trade names, mask works, copyrights,
trade secrets, licenses, information, proprietary rights and processes which it
deems necessary to carry out its business as currently conducted or
contemplated. All patent issue and maintenance fees for the Company's patents
have been paid. As to its patents or patent applications, the Company represents
and warrants that it is unaware of any prior art that would invalidate any such
patent or any patent issuing from any such patent application. The Company
represents and warrants that to the best of its knowledge its patents are valid
and enforceable, and that any patent issuing from its patent applications will,
to the best of its knowledge, be valid and enforceable.

              3.10.  Taxes. All federal, state, local and foreign tax returns
required to be filed by the Company have been filed, or if not yet filed have
been granted extensions of the filing dates which extensions have not expired,
and all taxes, assessments, fees and other governmental charges upon the
Company, or upon any of its properties, income or franchises, shown in such
returns and on assessments received by the Company to be due and payable have
been paid, or adequate reserves therefor have been set up and have been
disclosed in the Company's financial statements, if any of such taxes are being
contested in good faith.

              3.11.  No Defaults, Violations or Conflicts.  The Company is not
in violation of any term or provision of its Restated Articles of Incorporation,
or its By-Laws, or any material term or provision of any indebtedness, mortgage,
indenture, contract, agreement, judgment, or

                                      -5-
<PAGE>   6

any decree, order, statute, rule or regulation applicable to the Company's
business, assets or properties, including, without limitation, laws, statutes,
rules or regulations relating to occupational health and safety matters, the
violation of which could have a Material Adverse Effect.

              3.12.  Environmental Matters. Without limiting Section 3.11, the
Company has operated and conducted its business in compliance in all respects
with all applicable Environmental Laws (as defined below), except for such
noncompliance as does not and will not, individually or in the aggregate, have a
Material Adverse Effect. There have been no past, and are no continuing,
releases or threats of releases of any hazardous or toxic substances, including
without limitation a "hazardous substance" as defined in 42 U.S.C. Section
9601(14), oil, gasoline and any other petroleum-based substances, into the
environment from, any real property currently or previously leased or owned by
the Company. There have been no hazardous or toxic wastes of or generated by the
Company which have been disposed of or come to rest at any site which has been
included in any published federal, state or local "superfund" list or any other
list of hazardous or toxic waste sites. There are no underground storage tanks
located on, no polychlorinated biphenyls ("PCBs") or PCB containing equipment
used or stored on, or hazardous waste, as defined by the Resource Conservation
and Recovery Act or comparable state or local laws, stored on, any real property
leased or owned by the Company. "Environmental Laws" means all federal, state,
local and foreign laws, rules and regulations relating to pollution or
protection of the environment (including, without limitation, ambient air,
surface water, ground water, land surface or subsurface strata), including
without limitation laws, rules and regulations relating to emissions,
discharges, releases or threatened releases of chemicals, pollutants,
contaminants, wastes, toxic substances, petroleum and petroleum products, or
otherwise relating to the manufacture, processing, distribution, use, treatment,
storage, disposal, transport or handling thereof.

              3.13.  Private Offering.

                     (a)    The sale of the Series C Preferred Stock hereunder,
and each sale of capital stock heretofore made by the Company, individually and
together with any other sale of capital stock, is or was exempt from the
registration and prospectus delivery requirements of the Securities Act of 1933,
as amended (the "Act"). The Company has not sold the Series C Preferred Stock to
anyone other than the Purchasers. No securities of the same class as the Series
C Preferred Stock have been issued and sold by the Company within the six-month
period ended immediately prior to the date of the Initial Closing. Each share of
Series C Preferred Stock shall bear the legend set forth in Section 4.2(b) of
this Agreement relating to the restrictions on transferability and sale imposed
by the Act for at least so long as such restrictions apply.

                     (b)    In the case of each offer or sale of the Series C
Preferred Stock, no form of general solicitation or general advertising was used
by the Company or its representatives, including, but not limited to,
advertisements, articles, notices or other communications published in any
newspaper, magazine or similar medium or broadcast over television or radio, or
any seminar or meeting whose attendees were invited by any general solicitation
or general advertising. Each Purchaser has represented to the Company that such
Purchaser is an accredited investor or an entity in which all of the equity
owners are accredited

                                      -6-
<PAGE>   7

investors. When the Series C Preferred Stock is issued and delivered pursuant to
this Agreement, none of the Series C Preferred Stock will be of the same class
(within the meaning of Rule 144A under the Act) as securities of the Company
that are listed on a national securities exchange registered under Section 6 of
the Securities Exchange Act of 1934, as amended (the "Exchange Act") or that are
quoted on a United States automated interdealer quotation system. The Series C
Preferred Stock will be eligible for resale pursuant to Rule 144A upon issuance
thereof.

              3.14.  Prior Registration Rights. Except as shall be provided in
the Rights Agreement and the Amended and Restated Information and Registration
Rights Agreement dated July 31, 1995 entered into between the Company and the
holders of Series A Preferred Stock and Series B Preferred Stock, the Company is
under no contractual obligation to register under the Act any of its presently
outstanding securities or any of its securities that may subsequently be issued.

              3.15.  No Consents. No consent, approval, order or authorization
of, or registration, qualification, designation, declaration or filing with, any
court, regulatory body, administrative agency, governmental authority or any
other person is required in connection with the issuance of the Series C
Preferred Stock or consummation of the transactions contemplated by this
Agreement, except for those that have been or will be obtained prior to the
Closing. The issuance of the Series C Preferred Stock contemplated hereby will
not result in any antidilution adjustments in the exercise price of the
Warrants, the Series A Preferred Stock, or the Series B Preferred Stock.

              3.16.  Financial Statements. The Company has previously delivered
to the Purchasers complete copies of the following financial statements
("Financial Statements") of the Company: audited financial statements for the
years ended December 31, 1998 and 1997, and unaudited interim financial
statements for the six (6) months ended June 30, 1999, consisting of a balance
sheet as of such dates and income statements and cash flows for the years and
the periods ended on such dates. The Financial Statements fairly present the
financial position, results of operations and changes in financial position of
the Company at the respective dates or for the respective periods to, which they
apply, and such Financial Statements and related schedules and notes have been
prepared in accordance with generally accepted accounting principles ("GAAP")
consistently applied throughout the periods involved, subject in the case of
interim financial statements to normal, recurring year-end adjustments which
will not in the aggregate be material.

              3.17.  Permits. Except as, singly or in the aggregate, could not
have a Material Adverse Effect, (i) the Company has (1) such permits, licenses,
franchises, certificates, consents, exemptions, orders, and authorizations of
governmental or regulatory authorities (the "Permits") as are necessary to own,
lease, license and use its respective properties and to conduct its business,
and (2) fulfilled and performed all of its material obligations with respect to
the Permits, (ii) all such Permits are valid and in full force and effect and
(iii) no event has occurred that could allow, or after notice or lapse of time
could allow, revocation or termination of any Permit or that could result in any
other material impairment of the rights granted to the Company under any Permit,
and the Company has no reason to believe that any governmental body or agency is
considering limiting, suspending or revoking any Permit.

                                      -7-
<PAGE>   8

              3.18.  Insurance. The Company maintains adequate insurance
covering its properties, operations, personnel and businesses. Such insurance
insures against such losses and risks as are adequate in accordance with
customary industry practice to protect the Company and its businesses.

              3.19.  Accounting Controls. The Company maintains a system of
internal accounting controls sufficient to provide assurance that: (1)
transactions are executed in accordance with management's general or specific
authorizations; (2) transactions are recorded as necessary to permit preparation
of financial statements in conformity with GAAP and to maintain accountability
for assets; (3) access to assets is permitted only in accordance with
management's general or specific authorization; and (4) the recorded
accountability for assets is compared with the existing assets at reasonable
intervals and appropriate action is taken with respect to any differences.

              3.20.  No Brokers. The Company (a) has dealt with no broker,
finder, commission agent or other person in connection with the sale of the
Series C Preferred Stock and the transactions contemplated by this Agreement and
(b) is under no obligation to pay any broker's fee or commission in connection
with such transactions.

              3.21.  Full Disclosure, No Material Adverse Change. As of the date
of each Additional Closing, this Agreement, any Transaction Agreement, and any
other document or instrument entered into by the Company in connection with the
sale of the Series C Preferred Stock does not contain any untrue statement of
material fact or omit to state any material fact necessary in order to make the
statements therein, in light of the circumstances under which they were made,
not misleading. Since December 31, 1998 and up through the date of each
Additional Closing (1) the Company has not incurred any direct or contingent
liability or obligation that could, individually or in the aggregate, have a
Material Adverse Effect, and the Company has not entered into any transaction or
incurred any liability not in the ordinary course of business, (2) there has not
been any decrease in the Company's capital stock or any increase in long-term
indebtedness or any material increase in short-term indebtedness of the Company,
nor has there been any payment of or declaration to pay any dividends or other
distributions with respect to the Company's Common Stock, Series A Preferred
Stock, or Series B Preferred Stock, and (3) there has not been any other event
or series of events that could, individually or in the aggregate, have a
Material Adverse Effect.

              3.22.  Governmental Regulations. The Company is not and will not
be upon issuance and sale of the Series C Preferred Stock and the use of the
proceeds as described herein subject to regulation under the Investment Company
Act of 1940, as amended, the Public Utility Holding Company Act of 1935, as
amended, the Federal Power Act, the Interstate Commerce Act or any federal or
state statute or regulation limiting its ability to incur indebtedness for
borrowed money. The Company is not an "investment company" or a company
"controlled" by an "investment company" within the meaning of the Investment
Company Act of 1940, as amended. Neither the Company nor any agent thereof
acting on its behalf has taken, and none of them will take, any action that
might cause this Agreement or the issuance or sale of the Series C Preferred
Stock or the application of the proceeds thereof to violate Section 7 of the
Exchange Act or any regulation issued pursuant thereto, including, without
limitation, Regulation G, T, U

                                      -8-
<PAGE>   9

or X of the Board of Governors of the Federal Reserve System, in each case as in
effect now or as the same may hereafter be in effect on the date of the Closing.

              3.23.  Officer's Certificate. To the extent that any of the
foregoing representations and warranties of the Company are not true as of the
Closing, the Company shall deliver an officer's certificate at the Closing to
the Purchasers setting forth any exceptions to such representations and
warranties.

       Section 4.    Representations and Warranties of the Purchasers.

              Each Purchaser individually represents, warrants, acknowledges and
agrees that:

              4.1.   Authorizations. This Agreement constitutes each Purchaser's
legally binding and valid obligation, enforceable in accordance with its terms,
and each Purchaser has full power and authority to enter into this Agreement.

              4.2.   Restricted Securities. (a) Such Purchaser understands that
the shares of Series C Preferred Stock are characterized as "restricted
securities" under the Act and that, under the Act and applicable regulations
thereunder, such securities may not be resold, pledged or otherwise transferred
without registration under the Act except in certain limited circumstances. Each
Purchaser represents that it is familiar with Rules 144 and 144A promulgated
under the Act as presently in effect, and understands the transfer limitations
imposed thereby and by the Act and that such Purchaser has read and understands
the disclosures set forth in Exhibit B to this Agreement relating to the
securities laws of certain jurisdictions. Each Purchaser understands that (i)
the Series C Preferred Stock is being offered in a transaction not involving any
public offering in the United States within the meaning of the Act, and the
Series C Preferred Stock has not been registered under the Act, (ii) such Series
C Preferred Stock may be offered, resold, pledged or otherwise transferred only
(A) to a person who the seller reasonably believes is a qualified institutional
buyer in a transaction meeting the requirements of Rule 144A, in a transaction
meeting the requirements of Rule 144, or in accordance with another exemption
from the registration requirements of the Act (and based upon an opinion of
counsel if the Company so requests) or (B) outside the United States to a
foreign person in a transaction meeting the requirements of Rule 904 under the
Act and (C) in each case, in accordance with any applicable securities laws of
any jurisdiction of the United States or any other applicable jurisdiction, and
(iii) such Purchaser will be required to notify any subsequent purchaser from
such Purchaser of the resale restrictions set forth above.

              (b)    Each Purchaser understands that (i) the registrar or
transfer agents for the Series C Preferred Stock will not be required to accept
for registration of transfer any Series C Preferred Stock except upon
presentation of evidence satisfactory to the Company that the restrictions on
transfer under the Act have been complied with and (ii) any Series C Preferred
Stock in the form of definitive physical certificates will bear a legend
substantially as set forth below:

              THE SECURITY (OR ITS PREDECESSOR) EVIDENCED HEREBY WAS ORIGINALLY
              ISSUED IN A TRANSACTION EXEMPT FROM REGISTRATION UNDER SECTION 5
              OF THE UNITED STATES

                                      -9-
<PAGE>   10

              SECURITIES ACT OF 1933 (THE "ACT") AND APPLICABLE STATE SECURITIES
              LAWS, AND THE SECURITY EVIDENCED HEREBY MAY NOT BE OFFERED, SOLD
              OR OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN
              APPLICABLE EXEMPTION THEREFROM. EACH PURCHASER OF THE SECURITY
              EVIDENCED HEREBY IS HEREBY NOTIFIED THAT THE SELLER MAY BE RELYING
              ON THE EXEMPTION PROVIDED BY RULE 144A UNDER THE ACT. THE HOLDER
              OF THE SECURITY EVIDENCED HEREBY AGREES FOR THE BENEFIT OF THE
              COMPANY THAT (A) SUCH SECURITY MAY BE RESOLD, PLEDGED OR OTHERWISE
              TRANSFERRED, ONLY (1) (a) TO A PERSON WHO THE SELLER REASONABLY
              BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF
              RULE 144A UNDER THE ACT IN A TRANSACTION MEETING THE REQUIREMENTS
              OF RULE 144A, OR IN ACCORDANCE WITH RULE 144 UNDER THE ACT, OR
              PURSUANT TO ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS
              OF THE ACT (AND BASED UPON AN OPINION OF COUNSEL), (b) TO THE
              COMPANY, (c) OUTSIDE THE UNITED STATES TO A FOREIGN PERSON IN A
              TRANSACTION MEETING THE REQUIREMENTS OF RULE 904 UNDER THE ACT, OR
              (d) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT
              AND (2) IN EACH CASE, IN ACCORDANCE WITH THE APPLICABLE SECURITIES
              LAWS OF ANY STATE OF THE UNITED STATES OR ANY OTHER APPLICABLE
              JURISDICTION AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER
              IS REQUIRED TO, NOTIFY ANY PURCHASER OF THE SECURITY EVIDENCED
              HEREBY OF THE RESALE RESTRICTIONS SET FORTH IN (A) ABOVE.

              4.3.   Accredited Investor.

                     (a)    Each Purchaser is an "accredited investor" within
the meaning of Rule 501 (a) or an entity in which all of the equity owners are
accredited investors within the meaning of Rule 501 (a)(1),(2) or (3) under the
Act (an "Institutional Accredited Investor").

                     (b)    (i) Each Purchaser is purchasing the Series C
Preferred Stock for its own account or for the account of one or more other
Institutional Accredited Investors or as fiduciary for the account of one or
more trusts, each of which is an "accredited investor" within the meaning of
Rule 501(a)(7) under the Act and for each of which it exercises sole investment
discretion or (ii) a Purchaser is a "bank," within the meaning of Section
3(a)(2) of the Act, or a "savings and loan association" or other institution
described in Section 3(a)(5)(A) of the Act that is acquiring the Series C
Preferred Stock as fiduciary for the account of one or more Institutional
Accredited Investors for which such Purchaser exercises sole investment
discretion. No Purchaser hereunder is a "broker/dealer" registered under the
Exchange Act. Each Purchaser has such knowledge and experience in financial and
business matters that such Purchaser is capable of evaluating the merits and
risks of purchasing the Series C Preferred Stock.

                                      -10-
<PAGE>   11

                     (c)    No Purchaser is acquiring the Series C Preferred
Stock with a view to any distribution thereof in a transaction that would
violate the Act or the securities laws of any State of the United States or any
other applicable jurisdiction; provided, however, that the disposition of such
Purchaser's property and the property of any accounts for which such Purchaser
is acting as fiduciary shall remain at all times within such Purchaser's
control.

                     (d)    Each Purchaser acknowledges that it has had access
to such financial and other information, and has been afforded the opportunity
to ask such questions of representatives of the Company and receive answers
thereto, as such Purchaser deems necessary in connection with its decision to
purchase the Series C Preferred Stock.

                     (e)    Each Purchaser acknowledges and agrees that Smith,
Mackinnon, Greeley, Bowdoin & Edwards, P.A., for the purposes of its opinions to
be delivered pursuant to Section 5. l(g) hereof, may rely on the truthfulness of
its representations set forth in Section 4.

                     (f)    No Purchaser is acquiring the Series C Preferred
Stock for or on behalf of any pension or welfare plan (as defined in Section 3
of ERISA) except that such a purchase for or on behalf of a pension or welfare
plan shall be permitted:

                     (1)    to the extent such purchase is made by or on behalf
       of a bank collective investment fund maintained by such Purchaser in
       which no plan (together with any other plans maintained by the same
       employer or employee organization) has an interest in excess of 10% of
       the total assets in such collective investment fund and all other
       conditions of Prohibited Transaction Class Exemption 91-38 issued by the
       Department of Labor are satisfied;

                     (2)    to the extent such purchase is made by or on behalf
       of an insurance company pooled separate account maintained by a Purchaser
       in which no plan (together with any other plans maintained by the same
       employer or employee organization) has an interest in excess of 10% of
       the total of all assets in such pooled separate account and all other
       conditions of Prohibited Transaction Class Exemption 90-1 issued by the
       Department of Labor are satisfied;

                     (3)    to the extent such purchase is made on behalf of a
       plan by (i) an investment adviser registered under the Investment
       Advisers Act of 1940 that had as of the last day of its most recent
       fiscal year total client assets under its management and control in
       excess of $50,000,000 and had stockholders' or partners' equity in excess
       of $750,000, as shown in its most recent balance sheet prepared within
       the two years immediately preceding the purchase in accordance with GAAP
       or (ii) a bank as defined in Section 202(a)(2) of the Investment Advisers
       Act of 1940 with equity capital in excess of $1,000,000 as of the last
       day of its most recent fiscal year and, in either case, such investment
       adviser or bank is a qualified professional asset manager, as such term
       is defined in Prohibited Transaction Class Exception 84-14 issued by the
       Department of Labor, and the assets of such plan when combined with the
       assets of other plans established or maintained by the same employer (or
       affiliate thereof) or employee organization and managed by such
       investment advisor or bank, do not represent more

                                      -11-
<PAGE>   12

       than 20% of the total client assets managed by such investment advisor or
       bank at the time of such purchase and all other conditions of such
       exemption are satisfied; or

                     (4)    to a plan that is a governmental plan (as defined in
       Section 3(32) of ERISA) or Section 414(d) of the Code.

       Section 5.    Conditions of Closing.

              5.1.   Conditions to Purchasers' Obligations. The obligations of
the Purchasers under Section 1 of this Agreement are subject to the fulfillment
at or before the Initial closing and each Additional Closing of each of the
following conditions, any of which may be waived in writing by the Purchasers:

                     (a)    Representations and Warranties. The representations
and warranties of the Company contained in Section 3 shall be true on and as of
such Closing with the same effect as if made on and as of such Closing;
provided, however, the Purchasers shall not be required to close the
transactions contemplated hereunder if the Company delivers an officer's
certificate pursuant to Section 3.23 hereof disclosing information which could,
individually or in the aggregate, have a Material Adverse Effect.

                     (b)    Performance. The Company shall have performed or
fulfilled all agreements, obligations and conditions contained herein required
to be performed or fulfilled by the Company at or prior to such Closing.

                     (c)    Blue Sky Compliance. The purchase of and payment for
the Series C Preferred Stock to be purchased (a) shall not be prohibited by any
applicable law or governmental regulation, release, interpretation or opinion of
the Board of Governors of the Federal Reserve System or other regulatory agency
(including, without limitation, Regulations G, T, U and X of the Board of
Governors of the Federal Reserve System), (b) shall not subject any Purchaser to
any penalty or, in such Purchaser's reasonable judgment, other onerous condition
under or pursuant to any applicable law or governmental regulation, and (c)
shall be permitted by the laws and regulations of the jurisdictions to which the
Purchasers are subject. The Company shall have delivered to each Purchaser, upon
its reasonable request, factual certificates or other evidence, in form and
substance satisfactory to such Purchaser, to enable it to establish compliance
with this condition.

                     (d)    Proceedings Satisfactory. All corporate and legal
proceedings taken by the Company in connection with the transactions
contemplated by this Agreement and all documents and papers relating to such
transactions shall be reasonably satisfactory to the Purchasers.

                     (e)    Information and Registration Rights. The Purchasers
and the Company shall have entered into the Rights Agreement in the form of
Exhibit C attached hereto.

                     (f)    Articles of Incorporation. The Restated Articles of
Incorporation shall be amended to incorporate the terms of the Series C
Preferred Stock (in accordance with that set forth on Schedule 2), and such
amendment shall have been filed with the Secretary of

                                      -12-
<PAGE>   13

State of the State of Florida, shall be in full force and effect, shall not have
been amended or altered in any respect and shall be satisfactory in form and
substance to the Purchasers.

                     (g)    Opinion of Counsel. There shall have been delivered
at such Closing to each Purchaser an opinion, dated as of the date of such
Closing and addressed to each Purchaser, from Smith, Mackinnon, Greeley, Bowdoin
& Edwards, P.A., counsel for the Company, in form and substance reasonably
satisfactory to the Purchasers.

                     (h)    Compliance Certificate. The Company shall have
delivered to the Purchasers a certificate, signed by the President or a Vice
President of the Company, to the effect that the conditions set forth in this
Section 5.1 have been satisfied.

                     (i)    Proceedings Satisfactory. Each Purchaser and its
counsel shall have received copies of such documents and papers as they may
reasonably request in connection therewith, all in form and substance reasonably
satisfactory to the Purchasers.

                     (j)    Consents and Permits. The Company shall have
received all material consents, permits and other authorizations, and made all
such material filings and declarations, as may be required from any person
pursuant to any law, statute, regulation or rule (federal, state, local or
foreign), or pursuant to any agreement, order or decree to which the Company is
a party or to which it is subject, in connection with the transactions
contemplated by this Agreement and the sale of the Series C Preferred Stock

              5.2.   Conditions to the Company's Obligations. The obligations of
the Company under Section 1 of this Agreement are subject to the fulfillment at
or before the Closing of each of the following conditions, any of which may be
waived in writing by the Company:

                     (a)    Representations and Warranties. The representations
and warranties of the Purchasers contained in Section 4 shall be true on and as
of the Closing with the same effect as if made on and as of the Closing.

                     (b)    Payment of Purchase Price. Each Purchaser shall have
delivered the aggregate purchase price for the Series C Preferred Stock in the
amount specified for such Purchaser on Schedule 1.

                     (c)    Information and Registration Rights. The Purchasers
and the Company shall have entered into the Rights Agreement.

                     (d)    Blue Sky Matters. The purchase of and payment for
the Series C Preferred Stock to be purchased (a) shall not be prohibited by any
applicable law or governmental regulation, release, interpretation or opinion of
the Board of Governors of the Federal Reserve System or other regulatory agency
(including, without limitation, Regulations G, T, U and X of the Board of
Governors of the Federal Reserve System), (b) shall not subject the Company to
any penalty or, in the Company's reasonable judgment, other onerous condition
under or pursuant to any applicable law or governmental regulation and (c) shall
be permitted by the laws and regulations of the jurisdictions to which the
Company and the Purchasers are subject.

                                      -13-
<PAGE>   14

                     (e)    Shareholder Approval and Preemptive Rights. This
Agreement and the transactions contemplated hereby shall have been approved by
the shareholders of the Company, as and to the extent required by applicable
law, and the Company shall have complied in all respects with Article III,
Section 9 of the Restated Articles of Incorporation.

                     (f)    Consent and Permits. The Company shall have received
all material consents, permits and other authorizations, and made all such
material filings and declarations, as may be required from any person pursuant
to any law, statute, regulation or rule (federal, state, local or foreign), or
pursuant to any agreement, order or decree to which the Company is a party or to
which it is subject, in connection with the transactions contemplated by this
Agreement and the sale of the Series C Preferred Stock.

       Section 6.    Legends, Market Standstill.

              6.1.   Legends. The Purchasers agree that the Company may place or
cause to be placed on the certificates representing the securities, a legend
regarding the market standstill agreement contained in this Section 6 and any
appropriate legend or legends containing restrictions on transfer necessary
under the Act and any other applicable state corporations or securities statutes
and regulations.

              6.2.   Market Standstill. The Purchasers agree that if so
requested by written notice from the Company and a representative of the
underwriter (if any) in connection with any registration of the offering of any
securities of the Company under the Act, the Purchasers shall not sell or
otherwise transfer any shares of Series C Preferred Stock or Underlying Shares
during the 120-day period following the effective date of a registration
statement of the Company filed under the Act, except pursuant to a registration
statement provided for in Section 6 or 7 of the Rights Agreement; provided,
however, that such restriction shall apply only to the first registration
statement of the Company to become effective under the Act that includes
securities to be sold on behalf of the Company to the public in an underwritten
initial public offering under the Act. The Company may impose stop-transfer
instructions with respect to the Series C Preferred Stock or Underlying Shares
subject to the foregoing restrictions until the end of such 120-day period.

       Section 7.    Expenses, Indemnification: Contribution.

              7.1.   Expenses. Whether or not the Series C Preferred Stock is
sold, the Company will pay all expenses relating to this Agreement, including
but not limited to:

                     (a)    the cost of printing (including, without limitation,
word processing and duplication costs), reproducing and distributing this
Agreement (including, without limitation, financial statements and exhibits),
and any other documents contemplated hereby or thereby;

                     (b)    the cost, if any, of delivering to each Purchaser's
home, office or the office of such Purchaser's designee, insured to such
Purchaser's satisfaction, the Series C Preferred Stock purchased at the Closing;

                                      -14-
<PAGE>   15

                     (c)    all fees and expenses in connection with the
qualification of the Series C Preferred Stock for offer and sale under the
securities or blue sky laws of the several states (including, without
limitation, the reasonable fees and disbursements of each Purchaser's counsel
relating to such qualification);

                     (d)    the fees, disbursements and expenses of the
Company's counsel and accountants; and

                     (e)    all other expenses incurred by the Company in
connection with the transactions contemplated by this Agreement and the other
documents contemplated by this transaction.

              7.2.   Indemnification In addition to any and all obligations of
the Company to indemnify any Purchaser pursuant to the Rights Agreement or any
other document, the Company shall, without limitation as to time, indemnify each
Purchaser and its agents, against, and hold them harmless from, all losses,
claims, damages, liabilities, costs (including the costs of preparation and
attorneys' fees) and expenses (collectively, "Losses") incurred by them pursuant
to any investigation or proceeding against the Company, the Purchasers or their
agents, arising out of or in connection with this Agreement or any other
document contemplated by this transaction, whether or not the transactions
contemplated by this Agreement are consummated, which investigation or
proceeding requires the participation of, or is commenced or filed against, one
or more of the Purchasers and their agents because of this Agreement or any
other document contemplated by this transaction or the transactions contemplated
hereby or thereby, other than any Losses resulting from action on the part of a
Purchaser or its agents (it being understood that the acts of one Purchaser
shall not prejudice the rights of any other Purchaser hereunder) that is finally
determined in such proceeding to be primarily the result of such Purchaser's
gross negligence or willful misconduct, or a breach of any representation,
warranty or agreement of such Purchaser set forth in this Agreement or any other
documents contemplated by this transaction, and that (i) is unrelated to any
wrongful act by the Company or its representatives and (ii) was not taken by
such Purchaser or its agents in reliance upon any of the Company's warranties,
covenants or promises herein or in the other documents contemplated by this
transaction, including certificates delivered by the Company pursuant hereto or
thereto. The Company agrees to reimburse each Purchaser and its agents promptly
for all such Losses as they are incurred by them. The obligations of the Company
to each Purchaser and each of its agents hereunder shall be separate
obligations. The obligations of the Company under this Section 7.2 shall survive
the conversion, payment or prepayment of the Series C Preferred Stock, at
maturity, upon redemption or otherwise, any transfer of the Series C Preferred
Stock by the Purchasers and the termination of this Agreement and any other
document contemplated by this transaction.

              7.3.   Contribution. If the indemnification provided for in
Section 7.2 of this Agreement from an indemnifying party is unavailable to any
Purchaser or its agents in respect of any Losses referred to therein, then each
indemnifying party, in lieu of indemnifying such persons, shall contribute to
the amount paid or payable by such persons as a result of such Losses in such
proportion as is appropriate to reflect the relative fault of such indemnifying
parties and such Purchasers or their agents in connection with the actions that
resulted in such Losses as well as any other relative equitable considerations.
The amount paid or payable by a party as a result of the Losses referred to
above shall be deemed to include, subject to the limitations set forth in

                                      -15-
<PAGE>   16

Section 7.2, any legal or other fees or expenses reasonably incurred by such
party in connection with any investigation, lawsuit or legal or administrative
action or proceeding. The parties hereto agree that it would not be just and
equitable if contribution pursuant to this Section 7.3 were determined by pro
rata allocation or by any other method of allocation that does not take account
of the equitable considerations referred to in this paragraph. No person guilty
of fraudulent misrepresentation (within the meaning of Section 11 (f) of the
Act) shall be entitled to contribution from any person who was not guilty of
such fraudulent misrepresentation.

       Section 8.    Additional Covenants.

              The Company further covenants and agrees:

                     (a)    not to, nor permit anyone acting on its behalf to,
offer the Series C Preferred Stock so as to bring the issuance and sale of the
Series C Preferred Stock within the provisions of Section 5 of the Act. The
Company acknowledges that Smith, Mackinnon, Greeley, Bowdoin & Edwards, P.A.
(for purposes of the opinions to be rendered by such firm) shall be entitled to
rely, without limitation, on this Section 8;

                     (b)    for so long as any of the Series C Preferred Stock
remain outstanding and during any period in which the Company is not subject to
Section 13 or 15(d) of the Exchange Act, to make available to any 144A purchaser
or beneficial owner of Series C Preferred Stock in connection with any sale
thereof and any prospective purchaser of such Series C Preferred Stock from such
144A purchaser or beneficial owner, the information required by Rule 144A(d)(4)
under the Act;

                     (c)    to use the net proceeds from the sale of the Series
C Preferred Stock solely for the purposes set forth herein;

                     (d)    that Smith, Mackinnon, Greeley, Bowdoin & Edwards,
P.A. (solely for purposes of establishing certain factual matters in the opinion
to be rendered by such firm) shall be entitled to rely, without limitation, on
the Company's representations and warranties contained in Section 3 hereof and
the covenants contained in this Section 8;

                     (e)    to comply at all times with all of the terms and
provisions of the Rights Agreement and the TAB Agreement;

                     (f)    that, at each Closing, the Company shall deliver to
the Purchasers an officer's certificate, as described in Section 3.23 hereof,
setting forth any exceptions to the Company's representations and warranties
contained in the Agreement;

                     (g)    that, if the Company sells or issues additional
shares of Common Stock or securities convertible into Common Stock at any time
after the date hereof but before June 30, 2001, at a price (the "Post-Sale
Price") which is less than the Series C Conversion Price (as such term is
defined in Section 7(a) of Article III of the Company's Restated Articles of
Incorporation authorizing the Series C Preferred Stock), whether through a sale
of stock, merger, consolidation or otherwise, (but other than pursuant to the
Options, the Warrants, or upon conversion of the Series A Preferred Stock or
Series B Preferred Stock) then, in lieu of any adjustment to the Series C
Conversion Price in the Restated Articles of Incorporation, the holders

                                      -16-
<PAGE>   17

of Series C Preferred Stock shall have the right to purchase additional shares
of Series C Preferred Stock from the Company at a price per share equal to the
par value thereof to the extent that the average price per share paid for all
shares of Series C Preferred Stock held by such holder, after taking into
account such purchase of additional shares pursuant to this Section 8(h), equals
the Post-Sale Price; and

                     (h)    that the Company will not voluntarily reduce the
exercise price of the Warrants unless, at the same time and for the same period,
it increases the Series A Common Equivalent Rate, the Series B Common Equivalent
Rate, and the Series C Common Equivalent Rate (as each such term is defined in
the Restated Articles of Incorporation) so as to achieve the same economic
effect per share as the reduction in the exercise price of the Warrants.

       Section 9.    Right of First Offer.

                     (a)    Until the earlier of (i) a merger, consolidation or
other business combination in which the Company is not the surviving
corporation, or a sale of all or substantially all of the Company's assets for
more than $25 million, or (ii) a firm underwritten initial public offering of
the Company's Common Stock in which the price per share shall be greater than
the then effective Series C Conversion Price (as defined in the Company's
Restated Articles of Incorporation) for its Common Stock, if any holder of
Series C Preferred Stock proposes to sell or otherwise transfer any shares of
Series C Preferred Stock (the "Shares") to any person or entity for value other
than a sale or transfer to an Affiliate of such holder (a "Permitted Transfer"),
the Company and each other holder of Series C Preferred Stock (an "Eligible
Holder") shall have the respective rights of first offer (the "Right of First
Offer") with respect to such Shares as more fully described in clauses (b) and
(c) of this Section 9.

                     (b)    Any holder of Series C Preferred Stock desiring to
sell or transfer Shares other than a Permitted Transfer (each, a "Selling
Holder") shall give a written notice (the "Transfer Notice") to the Company and
to each of the other holders of Series C Preferred Stock at each such holder's
address as shown on the Company's stock records, describing fully the proposed
sale or transfer, including the number of Shares proposed to be sold or
transferred and the proposed price. The Transfer Notice shall be signed by the
Selling Holder. The Company shall have the right to purchase all of the Shares
subject to the Transfer Notice at a price per share equal to the proposed per
share price, by delivery to the Selling Holder (with copies to all other holders
of Series C Preferred Stock) of a notice of exercise of the Company's Right of
First Offer within 10 days after the date the Transfer Notice is delivered to
the Company.

                     (c)    If the Company fails to exercise its Right of First
Offer within 10 days after delivery of the Transfer Notice with respect to all
of the Shares, then for the 10 days following the expiration of such 10 day
period, each Eligible Holder of Series C Preferred Stock shall have the right to
purchase its pro rata share of the Shares of the Selling Holder subject to the
Transfer Notice as to which the Company has not exercised its Right of First
Offer on the same terms as the Company by delivery of a notice of exercise to
the Selling Holder within 20 days after delivery of the Transfer Notice from the
Selling Holder to the Company; provided the Eligible Holders electing to
purchase shall acquire all of the Shares of the Selling Holder. For purposes of
this Section 9, an Eligible Holder's pro rata share ("Pro Rata Share") of the
Shares is equal to a fraction (calculated to the nearest 1/100th of a share of
Common Stock), the numerator

                                      -17-
<PAGE>   18

of which is equal to the Common Stock held by such Eligible Holder on the date
immediately prior to the date the Transfer Notice is delivered to the Company
which were issued upon the conversion of the Series C Preferred Stock and after
giving effect to the conversion of all outstanding Series C Preferred Stock held
by such Holder at the Series C Common Equivalent Rate (as such term is defined
in the Restated Articles of Incorporation), and the denominator of which is
equal to the total number of shares of Common Stock held by all Eligible Holders
on the date immediately prior to the date the Transfer Notice is delivered to
the Company which were issued upon the conversion of the Series C Preferred
Stock and after giving effect to the conversion of all outstanding Series C
Preferred Stock held by all Eligible Holders at the Series C Common Equivalent
Rate, as in effect immediately prior to the date the Transfer Notice is
delivered to the Company. If one or more Eligible Holders elects not to purchase
their entire Pro Rata Share of the Shares while the quantity of the Shares that
one or more Eligible Holders is willing to purchase exceeds the amount of the
Shares, the unpurchased Shares shall be allocated among the purchasing Eligible
Holders in proportion to the number of shares of Common Stock held by them on
the date immediately prior to the date the Transfer Notice is delivered to the
Company which were issued upon the conversion of the Series C Preferred Stock
and after giving effect to the conversion of all of such Holders' outstanding
Series C Preferred Stock at the Series C Common Equivalent Rate, as in effect
immediately prior to the date the Transfer Notice is delivered to the Company.

                     (d)    If neither the Company nor the Eligible Holders
elects to purchase all the Shares offered pursuant to any Transfer Notice, the
Selling Holder shall be entitled to sell such Shares, subject to any other
restrictions contained herein, for a price equal to or greater than the price,
and on the terms, stated in the Transfer Notice for a period of 90 days after
the date of the Transfer Notice.

       Section 10.   Miscellaneous.

              10.1.  Entire Agreement, Successors and Assigns. This Agreement,
together with its exhibits and schedules, constitutes the entire contract
between the Company and the Purchasers relative to the subject matter hereof.
Any previous agreement relating to the subject matter of this Agreement between
the Company and the Purchasers is superseded by this Agreement. Subject to the
exceptions specifically set forth in this Agreement, the terms and conditions of
this Agreement shall inure to the benefit of and be binding upon the respective
executors, administrators, heirs, successors and assigns of the parties.

              10.2.  Further Action. During the period from the date hereof to
each Closing, the Company shall use its best efforts and take all action
reasonably necessary or appropriate to cause its representations and warranties
contained in Section 3 of this Agreement to be true as of the date of each
Closing, after giving effect to the transactions contemplated by this Agreement,
as if made on and as of such date.

              10.3.  Governing Law. This Agreement shall be governed by and
construed in accordance with the internal laws of the State of Florida.

                                      -18-
<PAGE>   19

              10.4.  Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

              10.5.  Headings. The headings of the Sections of this Agreement
are for convenience and shall not by themselves determine the interpretation of
this Agreement.

              10.6.  Notices. Prior to the Closing, and thereafter with respect
to matters pertaining to this Agreement only, all notices and other
communications provided for or permitted hereunder shall be made by
hand-delivery, first-class mail (registered or certified, return receipt
requested), telex, telecopier, or overnight air courier guaranteeing next day
delivery:

                     (a)    if to the Purchasers, at such addresses set forth on
the counterpart signature page attached hereto; and

                     (b)    if to the Company, at 5100 West Silver Springs
Boulevard, Ocala, Florida 34482, Attention: Secretary, with a copy to Smith,
Mackinnon, Greeley, Bowdoin & Edwards, P.A., 255 South Orange Avenue, Suite 800,
Orlando, Florida 32801, Attention: John P. Greeley, Esquire.

              All such notices and communications shall be deemed to have been
duly given: at the time delivered by hand, if personally delivered; five
business days after being deposited in the mail, postage prepaid, if mailed;
when answered back, if telexed; when receipt acknowledged, if telecopied; and
the next business day after timely delivery to the courier, if sent by overnight
air courier guaranteeing next day delivery.

              10.7.  Survival of Representations and Warranties. The covenants,
agreements, representations and warranties of the parties contained in or made
pursuant to this Agreement shall survive the execution and delivery of this
Agreement and the Closing; provided, however, that such representations and
warranties are only made as of the date of such execution and delivery and as of
each Closing.

              10.8.  Amendments and Waivers. This Agreement may be amended,
modified or supplemented, and waivers or consents to departures from the
provisions hereof may be given, provided that the same are in writing and signed
by the Company and the holders of a majority of the then outstanding shares of
the Series C Preferred Stock.

              10.9.  Severability. If one or more provisions of this Agreement
are held to be unenforceable under applicable law, such provision(s) shall be
excluded from this Agreement and the balance of this Agreement shall be
interpreted as if such provision were excluded and shall be enforceable in
accordance with its terms.

              10.10. Attorneys' Fees. In any action or proceeding brought to
enforce any provision of this Agreement, or of any other documents entered into
as contemplated by this Agreement, or where any provision hereof or thereof is
validly asserted as a defense, the successful party shall be entitled to recover
reasonable attorneys' fees in addition to any other available remedy.

                                      -19-
<PAGE>   20

              10.11. Access to Information. The Company shall, from time to time
prior to the Closing, provide to any Purchaser such other information respecting
the business, operations, financial condition or assets of the Company as such
Purchaser may reasonably request.

              10.12. Public Disclosure. The Company covenants that it will take
all reasonable actions necessary to keep each Purchaser's identity confidential,
and will not disclose the Purchasers' identity as an investor in the Company in
any public announcement, governmental filing or otherwise without such
Purchaser's prior written consent unless such disclosure is required by law or
compelled by order of a court of competent jurisdiction, in which case prior to
making such disclosure the Company will give written notice to such Purchaser
describing in all reasonable detail the proposed content of such disclosure and
will afford such Purchaser in good faith an opportunity to suggest modifications
in the form and substance of such proposed disclosure.

              If this Agreement is satisfactory, please so indicate by signing
the acceptance at the foot of a counterpart of this Agreement and deliver such
counterpart to the Company whereupon this Agreement will become binding between
us in accordance with its terms.

              IN WITNESS WHEREOF, the Company and the Purchasers have duly
executed and delivered this Agreement as of the day and year first above
written.

                                                  INTELLON CORPORATION,
                                                  a Florida corporation

                                                  By:   /s/ Horst G. Sandfort
                                                    ----------------------------

                                      -20-

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