Exhibit 10.10

                                                                     Translation
                                                                     -----------


                       Guaranty Contract of Maximum Amount

                                            Shenfa Longgang E'bao Zi 20050407001

Party A: Longgang Branch, Shenzhen Development Bank (Creditor)
Address: A1, Xinyazhou Park, Central Town, Longgang District, Shenzhen
Telephone: 28952003             Fax: 28952004
Person in charge: Yu Bo         Position: President of Longgang Branch

Party B: Li Xiangqian (Guarantor)
Address: 21D, Yijin'ge, Tian'an Golf Park, Futian District, Shenzhen
Telephone: 83841596             Fax: 89770026

In  order  to  secure  the  indebtedness  of  Shenzhen  BAK  Battery  Co.,  Ltd.
(hereinafter  referred to as Obligor) under the Comprehensive  Credit Facilities
Agreement  (reference  no.  Shenfa  Longgang  Zongzi  20050407001,   hereinafter
referred to as Master Agreement) entered into by Creditor and Obligor on 7 April
2005, the Guarantor  agrees to provide guaranty to the Creditor as the guarantor
of the Obligor.  Through friendly negotiation,  both parties agree to enter into
this Contract:

I. Scope of Guaranty
The scope of guaranty covers all loan principal,  interest, penalty interest and
all the expenses incurred to the Creditor in realizing its creditor's right. The
maximum loan principal shall not exceed RMB 150 Million yuan.

II. Guaranty Period
The guaranty  period under this  Contract is from the date of  effectiveness  of
this  Contract to 2 years after the expiry of each credit  facilities  under the
Master  Agreement.  In case that the Creditor  lawfully  transfer its creditor's
right to a third party during the guaranty period,  the Guarantor shall continue
to perform its obligation of guaranty as originally agreed.


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III. Obligation of Guaranty
The  Guarantor  shall  bear  the  joint  and  several  liability  to  repay  all
indebtedness of the Obligor within the scope of the guaranty. In case of default
by the  Obligor,  the  Creditor  is  entitled  to demand the Obligor to repay or
demand the  Guaranty.  The  Guarantor  irrevocably  authorizes  the  Creditor to
transfer  directly the relevant amount of money from the account of Guarantor to
the account of  Creditor  in case of default of the  Obligor  upon mature of its
indebtedness.

IV. The guaranty of pledge  provided by the  Guarantor is  independent  from and
shall not be replaced by any other guaranty provided by other guarantors.

V. The guaranty under this Contract is irrevocable  and shall not be affected by
any  documentations  or  agreements  entered  into by the  Guarantor  and  other
parties,  nor  be  affected  by  the  insolvency,  bankruptcy,  cancellation  of
corporate status, or amendment of articles of association of the Obligor.

VI. In case that part or whole of the Master Agreement or agreement entered into
under the Master Agreement become invalid due to any reason, the Obligor shall
nevertheless perform its obligation of repayment and the Guarantor shall perform
its obligation of guaranty for the Obligor's obligation of repayment in
accordance with this Contract.

VII. Undertakings and Representations of the Guarantor

The Guarantor is legally qualified to execute and perform this Contract, and has
obtained  all  necessary  authorization  by the  board  of  directors  or  other
competent authorities (as the case may be).


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The Guarantor  undertakes that all application  materials submitted by it to the
Creditor  are  truthful,  lawful,  effective  and  with  no  serious  errors  or
omissions.

The Guarantor also undertakes that all  application  materials  submitted by the
Obligor to the  Creditor are  truthful,  lawful,  effective  and with no serious
errors or omissions.  The Guarantor  shall notify the Creditor in writing within
10 days after it has changed its address,  contact details,  liaison  telephone,
business scope or legal representative etc.

The  Guarantor  has fully  understood  all  provisions of this Contract and both
parties execute this Contract of their free will.

VIII.   Amendment and Termination of Contract
     1.   In case that any party intends to amend or terminate this Contract, it
          shall notify the other party in writing and a written  agreement shall
          be reached by both parties. This Contract shall remain valid until the
          written  agreement  to  amend  or  terminate  this  Contract  has been
          reached.
     2.   Any  waiver  or  tolerance  of the  Creditor  shall  not be  deemed as
          amendment  or  termination  of this  Contract  except  that a  written
          agreement has been reached in accordance with the above provision.
     3.   In case that the Master Agreement has been amended, the Creditor shall
          seek the approval of the Guarantor  immediately.  The Guarantor  shall
          continue to bear the  responsibility  of guaranty for the indebtedness
          of the  Obligor  under  the  Master  Agreement  (before  and after the
          amendment)  only after it has approved such  amendment.  However,  the
          Creditor  does not  need to seek the  approval  of the  Guarantor  for
          amendment of the Master  Agreement which decreases the indebtedness of
          the Obligor.


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IX.     Applicable Law and Dispute Settlement
     1.   The execution and  performance  of this Contract  shall be governed by
          the laws of People's Republic of China;
     2.   The method of dispute  settlement  for this Contract shall be the same
          with that of the Master Agreement.

X. This Contract shall be signed and stamped by both parties (only  signature is
needed for party of natural  person).  This Contract shall become effective upon
the delivery of the pledged collaterals to the Creditor.  If the pledge shall be
registered or recorded in accordance  with article 78 or 79 of the Guarantee Law
of People's  Republic of China,  this Contract  shall become  effective upon the
registration or record.

   XI. Other Issues



Party A (Company Chop):__________________
Authorized Representative: ______________
Date: 28 April 2005