Document:

<PAGE>   1

                                                                    EXHIBIT 10.8

                           MOBILITY ELECTRONICS, INC.
                        INCENTIVE STOCK OPTION AGREEMENT

     This Incentive Stock Option Agreement (the "Agreement") dated as of April
12, 1999 is entered into between Mobility Electronics, Inc., a Delaware
corporation (the "Company"), Richard W. Winterich, an employee of the Company
(the "Optionee"). In consideration of the mutual promises and covenants made
herein, the parties hereby agree as follows:

     1. GRANT OF OPTION. Under the terms and conditions of the Company's Amended
and Restated 1996 Long Term Incentive Plan (the "Plan"), a copy of which is
attached hereto and incorporated herein by reference, the Company grants to the
Optionee an option (the "Option") to purchase from the Company all or any part
of a total of 30,000 shares of the Company's Common Stock, par value $.01 per
share. The Option is granted as of the date first above written (the "Date of
Grant").

     2. CHARACTER OF OPTION. The Option is an "incentive stock option" within
the meaning of Section 422 of the Internal Revenue Code of 1986, as amended.

     3. TERM. The Option will expire on the tenth anniversary of the Date of
Grant or, in the event of the Optionee's termination of employment with the
Company, on such earlier date as may be provided in Section 6(b) of the Plan.

     4. VESTING. Subject to the provisions of Section 6(b) of the Plan, this
Option shall vest in full and be exercisable in whole or in part during the one
year period following the earlier of (1) the day following the date upon which
the Company closes its initial public offering of its Common Stock provided such
closing occurs on or before March 31, 2001; (2) a Change In Control of the
Company as defined in Exhibit A to the Employment Agreement by and between
Optionee and the Company dated November 20, 1998; or (3) December 31, 2007. This
option shall be exercisable at a price equal to $4.00 per share if the Option
vests pursuant to 4(1) or 4(2) above and shall be exercisable at a price equal
to 110% of the fair market value of the Common Stock on the date of exercise if
the Option vests pursuant to 4(3) above.

     5. PROCEDURE FOR EXERCISE. Exercise of the Option or a portion thereof
shall be effected by the giving of written notice to the Company and payment of
the purchase price prescribed in Section 1 above for the shares to be acquired
pursuant to the exercise.

     6. PAYMENT OF PURCHASE PRICE. Payment of the purchase price for any shares
purchased pursuant to the Option shall be in cash, unless otherwise agreed to in
writing by the Compensation Committee of the Board of Directors of the Company.

     7. TRANSFER OF OPTIONS. The Option may not be transferred except by will or
the laws of descent and distribution and, during the lifetime of the Optionee,
may be exercised only by the Optionee or by the Optionee's legally authorized
representative.

<PAGE>   2
     8. TERMINATION. The Option shall terminate on the earlier of (i) the
expiration date set forth in Section 3 above or, (ii) in the event of the
termination of the Optionee's employment, the date provided in Section 6(b) of
the Plan.

     9. ACCEPTANCE OF THE PLAN. The Option is granted subject to all of the
applicable terms and provisions of the Plan, and such terms and provisions are
incorporated by reference herein. The Optionee hereby accepts and agrees to be
bound by all the terms and conditions of the Plan.

     10. AMENDMENT. This Agreement may be amended by an instrument in writing
signed by both the Company and the Optionee.

     11. CONFIDENTIALITY AND NONCOMPETITION. In consideration of the grant of
Option hereunder, Optionee agrees to the following:

    (a) Acknowledgment of Proprietary Interest. Optionee recognizes the
proprietary interest of the Company and its affiliates in any Trade Secrets (as
hereinafter defined) of the Company and its affiliates. Optionee acknowledges
and agrees that any and all Trade Secrets currently known by Optionee or learned
by Optionee during the course of his engagement by the Company or otherwise,
whether developed by Optionee alone or in conjunction with others or otherwise,
shall be and is the property of the Company and its affiliates. Optionee further
acknowledges and understands that his disclosure of any Trade Secrets will
result in irreparable injury and damage to the Company and its affiliates. As
used herein, "Trade Secrets" means all confidential and proprietary information
of the Company and its affiliates, now owned or hereafter acquired, including,
without limitation, information derived from reports, investigations,
experiments, research, work in progress, drawings, designs, plans, proposals,
codes, marketing and sales programs, client lists, client mailing lists,
financial projections, cost summaries, pricing formula, and all other concepts,
ideas, materials, or information prepared or performed for or by the Company or
its affiliates and information related to the business, products or sales of the
Company or its affiliates, or any of their respective customers, other than
information which is otherwise publicly available; provided, however, "Trade
Secrets" does not include any information that is known or readily obtainable by
companies within the computer industry.

    (b) Optionee acknowledges and agrees that the Company and its affiliates are
entitled to prevent the disclosure of Trade Secrets. As consideration for the
grant of the options hereunder to Optionee by the Company, Optionee agrees at
all times during his employment with the Company and thereafter to hold in
strict confidence and not to disclose or allow to be disclosed to any person,
firm or corporation, other than to persons engaged by the Company and its
affiliates to further the business of the Company and its affiliates, and not to
use except in the pursuit of the business of the Company and its affiliates, the
Trade Secrets, without the prior written consent of the Company, including Trade
Secrets developed by Optionee.

    (c) Return of Materials at Termination. In the event of any termination or
cessation of his employment with the Company for any reason whatsoever, Optionee
will promptly deliver

<PAGE>   3

     to the Company all documents, data and other information pertaining to
     Trade Secrets. Optionee shall not take any documents or other information,
     or any reproduction or excerpt thereof, containing or pertaining to any
     Trade Secrets.

         (d) Competition During Employment. Optionee agrees that during his
     employment with the Company, neither he, nor any of his affiliates, will
     directly or indirectly compete with the Company or its affiliates in the
     portable or handheld computer power, docking, and connectivity business,
     which is defined as product lines or businesses that are competitive with
     products that are manufactured, marketed or sold by the Company and its
     affiliates during the term of his employment or under development during
     the term of his employment (the "Business"); and that he will not act as an
     officer, director, employee, consultant, shareholder, lender, or agent of
     any entity which is competitive with the Business; provided, however, that
     this Section shall not prohibit Optionee or any of his affiliates from
     purchasing or holding an aggregate equity interest of up to 1% in any
     business in competition with the Business. Furthermore, Optionee agrees
     that during his employment with the Company, he will undertake no planning
     for the organization of any business activity competitive with the Business
     and Optionee will not combine or conspire with any other Optionees of the
     Company and its affiliates for the purpose of the organization of any such
     competitive business activity.

         (e) Competition Following Employment. Optionee agrees that for a
     period of one-year after the termination or cessation of his employment for
     the Company for any reason whatsoever, neither he, nor any of his
     affiliates, will directly or indirectly: (1) compete with the Company or
     its affiliates in the Business, and that he will not act as an officer,
     director, Optionee, consultant, shareholder, lender, or agent of any entity
     which is engaged in the Business; provided, however, that this Section
     shall not prohibit Optionee or any of his affiliates from purchasing or
     holding an aggregate equity interest of up to 1% in any business in
     competition with the Business. Furthermore, Optionee will not combine or
     conspire with any other Optionees of the Company and its affiliates for the
     purpose of the organization of any such competitive business activity.

         12. INVENTIONS. In consideration of the grant of Option hereunder,
     Optionee agrees to the following:

         (a) Disclosure to Company. Optionee agrees to promptly disclose to the
     Company any and all inventions, discoveries, improvements, trade secrets,
     formulas, compositions, code, designs, programs, techniques, processes, and
     know-how, whether or not reduced to writing or practice, conceived by
     Optionee during the period of his or her employment with the Company,
     either alone or jointly with others, which relate to or result from the
     actual or anticipated business, work, research or investigations of the
     Company, or which result, to any extent, from use of the Company's premises
     or property (the work being hereinafter collectively referred to as the
     "Intellectual Property"). Further, Optionee shall disclose in confidence to
     the Company all patent and copyright applications filed by or on behalf of
     Optionee during the term of his employment with the Company and, to the
     extent such application related to the business of the Company at the date
     Optionee's employment terminates, for a period of three (3) years
     thereafter.

<PAGE>   4

         (b) Intellectual Property as Sole Property of the Company. Optionee
     acknowledges and agrees that all the Intellectual Property shall be the
     sole property of Optionee or any other entity designated by it, and
     Optionee hereby assigns to the Company his or her entire right and interest
     in and to all Intellectual Property. Optionee further agrees as to all
     Intellectual Property to assist the Company in every way (at the Company's
     expense) to obtain and from time to time enforce patents and copyrights on
     the Intellectual Property in any and all countries during the term of this
     Agreement. To that end, by way of illustration but not limitation, Optionee
     will testify in any suit or other proceeding involving any of the
     Intellectual Property, execute all documents which the Company reasonably
     determines to be necessary or convenient for use in applying for and
     obtaining patents and copyrights thereon and enforcing same, and execute
     all necessary assignments thereof to the Company or persons designated by
     it. Optionee's obligation to assist the Company in obtaining and enforcing
     patents and copyrights for the Intellectual Property shall continue beyond
     the termination of his employment, but the Company shall compensate
     Optionee at a reasonable rate after such termination for the time actually
     spent by Optionee at the Company's request on such assistance and the
     Company's requests for assistance shall be reasonable in light of
     Optionee's then existing business commitments. Optionee hereby irrevocably
     appoints the Company, and its duly authorized officers and agents, as
     Optionee's agent and attorney-in-fact to act for and on behalf of Optionee
     in filing all patent and copyright applications, amendments, renewals, and
     all other appropriate documents in any way related to Intellectual
     Property. The Company will promptly notify Optionee following any such
     filing, provided that the Company will not be obligated to make such
     notification if as a result the Company would be in violation of any
     agreement or order to which it is subject or bound.

         (c) List of Prior Inventions. As a matter of record, Optionee has set
     forth on Exhibit "A" attached hereto a complete list separately identifying
     each invention, discovery, improvement, trade secret, formula, composition,
     code, design, program, technique, process and know-how made or discovered
     by Optionee prior to his employment with the Company. Optionee represents
     and covenants that such list is complete. As a matter of record, Optionee
     has set forth on Exhibit "A" attached hereto a complete list of all
     inventions, programs, discoveries, or improvements relating to the
     Company's business which have been made by Optionee prior to his employment
     with the Company. Optionee represents and covenants that such list is
     complete. All such matters set forth in Exhibit "A", if any, which Optionee
     made prior to his employment by the Company are excluded from the scope of
     this Agreement.

         (d) Time of Invention; Presumption. For the purposes of this
     Agreement, an invention or other Intellectual Property is deemed to have
     been made or conceived during the duration of employment if during such
     time, the invention or other Intellectual Property was conceived or first
     actually reduced to writing or practice; and Optionee agrees that any
     disclosure of an invention, Intellectual Property or any patent or
     copyright application made within one (1) year after termination of his
     employment shall be presumed to relate to an invention or other
     Intellectual Property which was made or conceived during the term of
     Optionee's employment unless Optionee provides satisfactory and compelling
     evidence to the contrary.

         (e) Training and Experience. Nothing herein is intended to prevent or
     restrict the use by Optionee of Optionee's education, training and
     experience, except insofar as is expressly

<PAGE>   5

provided.

     13. MISCELLANEOUS. This Agreement will be construed and enforced in
accordance with the laws of the State of Delaware and will be binding upon and
inure to the benefit of any successor or assign of the Company and any executor,
administrator, trustee, guardian or other legal representative of the Optionee.

     Executed as of the date first above written.

                                   MOBILITY ELECTRONICS, INC.

                                   By: /s/ CHARLES R. MOLLO
                                       --------------------
                                       Charles R. Mollo
                                       Chief Executive Officer

                                   OPTIONEE:

                                       /s/ RICHARD W. WINTERICH
                                       ------------------------
                                       Richard W. Winterich

                                       ###-##-####
                                       Social Security Number of Optionee

<PAGE>   6

                                   Exhibit A<PAGE>   1

                                                                    EXHIBIT 10.9

                                                          WINTERICH, RICHARD W.

                           MOBILITY ELECTRONICS, INC.
                        INCENTIVE STOCK OPTION AGREEMENT

         This Incentive Stock Option Agreement (the "Agreement") dated as of
April 12, 1999 is entered into between Mobility Electronics, Inc., a Delaware
corporation (the "Company"), Richard W. Winterich, an employee of the Company
(the "Optionee"). In consideration of the mutual promises and covenants made
herein, the parties hereby agree as follows:

         1.       GRANT OF OPTION. Under the terms and conditions of the
Company's Amended and Restated 1996 Long Term Incentive Plan (the "Plan"), a
copy of which is attached hereto and incorporated herein by reference, the
Company grants to the Optionee an option (the "Option") to purchase from the
Company all or any part of a total of 100,000 shares of the Company's Common
Stock, par value $.01 per share, at a price of $4.00 per share. The Option is
granted as of the date first above written (the "Date of Grant").

         2.       CHARACTER OF OPTION. The Option is an "incentive stock
option" within the meaning of Section 422 of the Internal Revenue Code of 1986,
as amended.

         3.       TERM. The Option will expire on the fifth anniversary of the
Date of Grant or, in the event of the Optionee's termination of employment with
the Company, on such earlier date as may be provided in Section 6(b) of the
Plan.

         4.       VESTING. Subject to the provisions of Section 6(b) of the
Plan, the Option may be exercised according to the following schedule,
provided, however that this Option shall vest in full if there is a Change In
Control as defined in the Employment Agreement between Optionee and the Company
dated November 20, 1998.

<TABLE>
<CAPTION>
         Percentage
         Exercisable                                 Period
         -----------                                 ------

         <S>                        <C>
           33.33%                   After one year from the Date of Grant

           66.66%                   After two years from the Date of Grant

           100%                     After three years from the Date of Grant
</TABLE>

         The unexercised portion of the Option from one period may be carried
over to a subsequent period or periods, and the right of the Optionee to
exercise the Option as to such unexercised portion shall continue for the
entire term.

         5.       PROCEDURE FOR EXERCISE. Exercise of the Option or a portion
thereof shall be effected by the giving of written notice to the Company and
payment of the purchase price prescribed in Section 1 above for the shares to
be acquired pursuant to the exercise.

<PAGE>   2

         6.       PAYMENT OF PURCHASE PRICE. Payment of the purchase price for
any shares purchased pursuant to the Option shall be in cash, unless otherwise
agreed to in writing by the Compensation Committee of the Board of Directors of
the Company.

         7.       TRANSFER OF OPTIONS. The Option may not be transferred except
by will or the laws of descent and distribution and, during the lifetime of the
Optionee, may be exercised only by the Optionee or by the Optionee's legally
authorized representative.

         8.       TERMINATION. The Option shall terminate on the earlier of (i)
the expiration date set forth in Section 3 above or, (ii) in the event of the
termination of the Optionee's employment, the date provided in Section 6(b) of
the Plan.

         9.       ACCEPTANCE OF THE PLAN. The Option is granted subject to all
of the applicable terms and provisions of the Plan, and such terms and
provisions are incorporated by reference herein. The Optionee hereby accepts
and agrees to be bound by all the terms and conditions of the Plan.

         10.      AMENDMENT. This Agreement may be amended by an instrument in
writing signed by both the Company and the Optionee.

         11.      CONFIDENTIALITY AND NONCOMPETITION. In consideration of the
grant of Option hereunder, Optionee agrees to the following:

                  (a)      Acknowledgment of Proprietary Interest. Optionee
         recognizes the proprietary interest of the Company and its affiliates
         in any Trade Secrets (as hereinafter defined) of the Company and its
         affiliates. Optionee acknowledges and agrees that any and all Trade
         Secrets currently known by Optionee or learned by Optionee during the
         course of his engagement by the Company or otherwise, whether
         developed by Optionee alone or in conjunction with others or
         otherwise, shall be and is the property of the Company and its
         affiliates. Optionee further acknowledges and understands that his
         disclosure of any Trade Secrets will result in irreparable injury and
         damage to the Company and its affiliates. As used herein, "Trade
         Secrets" means all confidential and proprietary information of the
         Company and its affiliates, now owned or hereafter acquired,
         including, without limitation, information derived from reports,
         investigations, experiments, research, work in progress, drawings,
         designs, plans, proposals, codes, marketing and sales programs, client
         lists, client mailing lists, financial projections, cost summaries,
         pricing formula, and all other concepts, ideas, materials, or
         information prepared or performed for or by the Company or its
         affiliates and information related to the business, products or sales
         of the Company or its affiliates, or any of their respective
         customers, other than information which is otherwise publicly
         available; provided, however, "Trade Secrets" does not include any
         information that is known or readily obtainable by companies within
         the computer industry.

                  (b)      Covenant Not-to-Divulge Trade Secrets. Optionee
         acknowledges and agrees that the Company and its affiliates are
         entitled to prevent the disclosure of Trade Secrets. As consideration
         for the grant of the options hereunder to Optionee by the Company,
         Optionee agrees at all times during his employment with the Company and
         thereafter to hold in strict confidence and not to disclose or allow to
         be disclosed to any person, firm or corporation, other than to persons
         engaged by the Company and its affiliates to further the business of
         the Company and its affiliates, and not to use except in the pursuit of
         the business of the Company and its

<PAGE>   3

         affiliates, the Trade Secrets, without the prior written consent of the
         Company, including Trade Secrets developed by Optionee.

                  (c)      Return of Materials at Termination. In the event of
         any termination or cessation of his employment with the Company for
         any reason whatsoever, Optionee will promptly deliver to the Company
         all documents, data and other information pertaining to Trade Secrets.
         Optionee shall not take any documents or other information, or any
         reproduction or excerpt thereof, containing or pertaining to any Trade
         Secrets.

                  (d)      Competition During Employment. Optionee agrees that
         during his employment with the Company, neither he, nor any of his
         affiliates, will directly or indirectly compete with the Company or
         its affiliates in the portable or handheld computer power, docking,
         and connectivity business, which is defined as product lines or
         businesses that are competitive with products that are manufactured,
         marketed or sold by the Company and its affiliates during the term of
         his employment or under development during the term of his employment
         (the "Business"); and that he will not act as an officer, director,
         employee, consultant, shareholder, lender, or agent of any entity
         which is competitive with the Business; provided, however, that this
         Section shall not prohibit Optionee or any of his affiliates from
         purchasing or holding an aggregate equity interest of up to 1% in any
         business in competition with the Business. Furthermore, Optionee
         agrees that during his employment with the Company, he will undertake
         no planning for the organization of any business activity competitive
         with the Business and Optionee will not combine or conspire with any
         other Optionee of the Company and its affiliates for the purpose of
         the organization of any such competitive business activity.

                  (e)      Competition Following Employment. Optionee agrees
         that for a period of one-year after the termination or cessation of
         his employment for the Company for any reason whatsoever, neither he,
         nor any of his affiliates, will directly or indirectly: (1) compete
         with the Company or its affiliates in the Business, and that he will
         not act as an officer, director, Optionee, consultant, shareholder,
         lender, or agent of any entity which is engaged in the Business;
         provided, however, that this Section shall not prohibit Optionee or
         any of his affiliates from purchasing or holding an aggregate equity
         interest of up to 1% in any business in competition with the Business.
         Furthermore, Optionee will not combine or conspire with any other
         Optionees of the Company and its affiliates for the purpose of the
         organization of any such competitive business activity.

         12.      INVENTIONS. In consideration of the grant of Option
hereunder, Optionee agrees to the following:

                  (a)      Disclosure to Company. Optionee agrees to promptly
         disclose to the Company any and all inventions, discoveries,
         improvements, trade secrets, formulas, compositions, coded designs,
         programs, techniques, processes, and know-how, whether or not reduced
         to writing or practice, conceived by Optionee during the period of his
         or her employment with the Company, either alone or jointly with
         others, which relate to or result from the actual or anticipated
         business, work, research or investigations of the Company, or which
         result, to any extent, from use of the Company's premises or property
         (the work being hereinafter collectively referred to as the
         "Intellectual Property"). Further, Optionee shall disclose in
         confidence to the Company all patent and copyright applications filed
         by or on behalf of Optionee during the term of his employment with the
         Company and, to the extent such application related to the business of
         the

<PAGE>   4

         Company at the date Optionee's employment terminates, for a period of
         three (3) years thereafter.

                  (b)      Intellectual Property as Sole Property of the
         Company. Optionee acknowledges and agrees that all the Intellectual
         Property shall be the sole property of Optionee or any other entity
         designated by it, and Optionee hereby assigns to the Company his or
         her entire right and interest in and to all Intellectual Property.
         Optionee further agrees as to all Intellectual Property to assist the
         Company in every way (at the Company's expenses) to obtain and from
         time to time enforce patents and copyrights on the Intellectual
         Property in any and all countries during the term of this Agreement.
         To that end, by way of illustration but not limitation. Optionee will
         testify in any suit or other proceeding involving any of the
         Intellectual Property, execute all documents which the Company
         reasonably determines to be necessary or convenient for use in
         applying for and obtaining patents and copyrights thereon and
         enforcing same, and execute all necessary assignments thereof to the
         Company or persons designated by it. Optionee's obligation to assist
         the Company in obtaining and enforcing patents and copyrights for the
         Intellectual Property shall continue beyond the termination of his
         employment, but the Company shall compensate Optionee at a reasonable
         rate after such termination for the time actually spent by Optionee at
         the Company's request as such assistance and the Company's requests
         for assistance shall be reasonable in light of Optionee's then
         existing business commitments. Optionee hereby irrevocably appoints
         the Company, and its duly authorized officers and agents, as
         Optionee's agent and attorney-in-fact to act for and on behalf of
         Optionee in filing all patent and copyright applications, amendments,
         renewals, and all other appropriate documents in any way related to
         Intellectual Property. The Company will promptly notify Optionee
         following any such filing, provided that the Company will not be
         obligated to make such notification if as a result the Company would
         be in violation of any agreement or order to which it is subject or
         bound.

                  (c)      List of Prior Inventions. As a matter of record,
         Optionee has set forth on Exhibit "A" attached hereto a complete list
         separately identifying each invention, discovery, improvement, trade
         secret, formula, composition, code, design, program, technique,
         process and know-how made or discovered by Optionee prior to his
         employment with the Company. Optionee represents and covenants that
         such list is complete. As a matter of record, Optionee has set forth
         on Exhibit "A" attached hereto a complete list of all inventions,
         programs, discoveries, or improvements relating to the Company's
         business which have been made by Optionee prior to his employment with
         the Company. Optionee represents and covenants that such list is
         complete. All such matters set forth in Exhibit "A", if any, which
         Optionee made prior to his employment by the Company are excluded from
         the scope of this Agreement.

                  (d)      Time of Invention; Presumption. For the purposes of
         this Agreement, an invention or other Intellectual Property is deemed
         to have been made or conceived during the duration of employment if
         during such time, the invention or other Intellectual Property was
         conceived or first actually reduced to writing or practice; and
         Optionee agrees that any disclosure of an invention, Intellectual
         Property or any patent or copyright application made within one (1)
         year after termination of his employment shall be presumed to relate
         to an invention or other Intellectual Property which was made or
         conceived during the term of Optionee's employment unless Optionee
         provides satisfactory and compelling evidence to the contrary.

<PAGE>   5

                  (e)      Training and Experience. Nothing herein is intended
         to prevent or restrict the use by Optionee of Optionee's education,
         training and experience, except insofar as is expressly provided.

         13.      MISCELLANEOUS. This Agreement will be construed and enforced
in accordance with the State of Delaware and will be binding upon and inure to
the benefit of any successor or assign of the Company and any executor,
administrator, trustee, guardian or other legal representative of the Optionee.

         Executed as of the date first above written.

                                   MOBILITY ELECTRONICS, INC.

                                   By: /s/ CHARLES R. MOLLO
                                       -----------------------------------------
                                       Charles R. Mollo
                                       Chief Executive Officer

                                   OPTIONEE:

                                   /s/ RICHARD. WINTERICH
                                   ---------------------------------------------
                                   Richard W. Winterich

                                   [WITHHELD]
                                   ---------------------------------------------
                                   Social Security Number of Optionee

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00001-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00001-of-00352.parquet"}]]