November 28, 2005




Ms.  Jennifer Hardy
United States Securities and Exchange
   Commission
450 Fifth Street NW
Washington, D.C. 20549


         RE:      China BAK Battery, Inc., formerly known as Medina Coffee, Inc.
                  Pre-effective  Amendment 3 to  Registration  Statement on Form
                  SB-2
                  Filed October 11, 2005
                  File No.  333-122209
                  Annual  Report  on Form  10-KSB  for  the  fiscal  year  ended
                  December 31, 2004 and Subsequent Exchange Act Reports
                  File No.  0-49712

Dear Ms. Hardy:

         On  behalf  of  China  BAK  Battery,  Inc.  (the  "Company"),  we  have
electronically  transmitted  herewith  Pre-Effective  Amendment  No.  4  to  the
Registration  Statement  on Form SB-2,  which has been  marked to  indicate  the
changes  effected by the  amendment.  In  addition,  we have today  forwarded by
overnight  delivery  three (3) marked  copies of Amendment  No. 4 c/o Mr. Edward
Kelly, for the convenience of the Staff.

         This letter  responds to the Staff's  letter of comment,  dated October
24, 2005, on behalf of the Company.

                                     SB-2/A3
                                     -------

Summary, page 1
- ---------------

1.       We note disclosure under "Recent Sales of Unregistered  Securities" and
         elsewhere that China BAK Battery  completed a private  placement of 7.9
         million  shares of its common  stock on September  16,  2005.  Based on
         disclosure  in  exhibit  10.2 to the  current  report on Form 8-K dated
         September  14, 2005 and filed  September  15,  2005,  it appears that a




Ms.  Jennifer Hardy
November 28, 2005
Page 2

         distribution  of those 7.9 million  shares may take place  concurrently
         with the shares being  registered  under this  registration  statement.
         Expand the  disclosures  in the  summary  and in the  forty-fifth  risk
         factor  to  inform  investors  of  that  planned  distribution  and the
         aggregate number of shares to be offered for resale under it.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

Risk Factors, page 4
- --------------------

2.       Refer to the first paragraph  beginning with the phrase "We caution you
         that the following  important  factors,  among  others." If you wish to
         include this language in the prospectus,  the  appropriate  section for
         the language is "Special Note Regarding Forward-Looking Statements" and
         not the risk factors section.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

3.       Your document as revised  contains many risk factors.  The risk factors
         section  should  include  a  discussion  of the most  significant  risk
         factors  that make the  offering  speculative  or risky and should omit
         risks that are remote or boilerplate.  See Item 503(c)(1) of Regulation
         S-B.  For  example,  it is unclear  why the tenth risk factor is a risk
         factor  in  view  of  disclosure  in  note  13.A.1.  to  the  financial
         statements  that  management's  belief is that the  possibility  of the
         buildings  having to be vacated as illegitimate  constructions is "very
         remote."  Similarly,  it is unclear why the  twenty-eighth and fortieth
         risk factors are risk factors in view of disclosure in the forty-second
         risk factor that China BAK  Battery  has "no present  intention  to pay
         dividends." Review and, as appropriate, revise to ensure that each risk
         factor you include is necessary for investor protection.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

4.       You  state  in the  first  paragraph  that  there  are  "the  following
         important factors, among others." Delete this language because you must
         disclose all risks that you believe are material at this time.  See our
         June 7, 1999  Updated  Staff Legal  Bulletin No, 7 that is available on
         the Commission's website at http://www.sec.gov.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

5.       Avoid generic conclusions in the risk factors' headings and in the risk
         factors' discussions such as China BAK Battery's results of operations,
         business,   financial  condition,   or  prospects  would  or  could  be
         materially  and  adversely  affected  or would or could be harmed.  For
         example,  refer to the  third,  ninth,  eleventh,  and  sixteenth  risk
         factors.  Rather,  explain specifically what the risk's consequences or
         effects are for China BAK Battery and its securityholders.  See comment
         5 in our February 11, 2005 letter.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.




Ms.  Jennifer Hardy
November 28, 2005
Page 3


6.       A number of risk factors include  language like "We cannot assure," "We
         can provide no assurances,"  "nor can there be any  assurance,"  "there
         can be no assurance,"  "We can provide no assurance,"  "There can be no
         positive  assurance,"  and "We cannot provide  assurance." For example,
         refer to the first, fifth, eleventh, twelfth, fifteenth,,  seventeenth,
         eighteenth, twenty-first, twenty-third, and twenty-fourth risk factors.
         Since the risk is the  situation  described and not China BAK Battery's
         inability to assure,  please revise.  See comment 6 in our February 11,
         2005 letter and comment 2 in our August 2, 2005 letter.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

7.       Generally,  each risk factor should discuss a single risk. For example,
         refer to the thirteenth and fourteenth risk factors, and revise.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

8.       Quantify  and  describe  briefly in the second  risk  factor  China BAK
         Battery's "significant amount of debt."

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comments.

9.       Explain how the thirteenth  risk factor applies  specifically  to China
         BAK  Battery.  For  example,  does China BAK  Battery  lack  employment
         contracts with key personnel?  Are key personnel  planning to retire or
         nearing  retirement  age? Are there tensions  between key personnel and
         the board of directors?

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comments.

10.      The meaning of the next to last sentence in the seventeenth risk factor
         is unclear.  Specifically,  language  appears to be missing between the
         phrase  "the  design  and  manufacturing  capabilities"  and the phrase
         "competitive third-party suppliers and technologies." Please revise.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comment.

Gross Profit, page 24
- ---------------------

11.      You disclosed that your revenues  increased  approximately 59% from the
         three  months  ended June 30, 2004 to the three  months  ended June 30,
         2005.  You  disclosed   also  that  you  expanded  your   manufacturing
         facilities  and  related   acquisitions.   If  material,   expand  your
         disclosure  to include how the items below  affected your gross profit,
         including  offsetting  fluctuations  that  these  may have had with one
         another:

         o        increases  in labor  costs due to  volume  to meet the  demand
                  requirements from the increase in sales.




Ms.  Jennifer Hardy
November 28, 2005
Page 4



         o        increases  in  depreciation   related  to  your  manufacturing
                  expansion and new equipment purchases.

         Quantify  the effects that each of these  components  had on your gross
         profit.  Address  similarly the items above in your comparisons for the
         nine months  ended June 30, 2005  compared to June 30, 2004 and for the
         fiscal year ended September 30, 2004 compared to September 30, 2003.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comments.

Report of Independent Registered Public Accounting Firm, page F-I
- -----------------------------------------------------------------

12.      The independent  auditor's report included in your filing is not signed
         by your auditor.  Obtain from your auditor a signed audit report.  Also
         ensure that an updated consent is filed with your next amendment.

         Response: We have included the signed audit report and updated consent.

Statements of Stockholders' Equity, page F-4
- --------------------------------------------

13.      We read  your  responses  to prior  comments  11-16  and  your  revised
         disclosures.  Your  response  to comment 35 in our June 22, 2005 letter
         states that before the  transaction  with BAK Battery,  18  individuals
         paid   approximately   $11.5  million  for  31,225,643  shares  of  BAK
         International's common stock. Based on our understanding, approximately
         $2.0 million was received  during the fiscal year ended  September  30,
         2004 and the remaining $9.5 million was received during the fiscal year
         ended September 30, 2005. We understand also the $11.5 million was used
         to  purchase  essentially  all of the  shares of BAK  Battery  from the
         shareholders  of BAK Battery during the fiscal year ended September 30,
         2005.  We would  expect these cash inflows and outflows to be reflected
         in your statements of stockholders'  equity and cash flows during these
         periods since you appear to be reflecting the  transaction  between BAK
         Battery and BAK  International as a transaction  between entities under
         common control.  Revise your balance sheet, statements of stockholders'
         equity,  and  statements of cash flows to reflect  these  transactions.
         Also file amended  10-QSBs for filings made after  January 20, 2005. If
         our  understanding  is incorrect,  tell us how you determined  that the
         transactions  mentioned above should not be reflected in your financial
         statements for these periods.

         Response: On November 6, 2004 the shareholders of BAK Battery agreed to
         purchase for a total of $11.5 million in cash 96.8% of the  outstanding
         shares of  capital  stock of BAK  International  and BAK  International
         agreed  to  purchase  for a total  of  $11.5  million  cash  all of the
         outstanding  shares of capital stock of BAK Battery.  Please see note 2
         to the Unaudited Consolidated Financial Statement at June 30, 2005.




Ms.  Jennifer Hardy
November 28, 2005
Page 5



14.      We read your response to prior comment 17 and your revised disclosures.
         Based on your  revised  disclosure,  it does not  appear  that you have
         presented separately the date of the effective issuance,  the number of
         shares  effectively  issued,  and the value  issued  for the  1,152,458
         post-transaction  shares effectively issued to the former  shareholders
         of Medina Coffee,  Inc. Thus, revise your disclosure.  Also ensure that
         you reflect this change in your balance sheet.

         Response:  We have  modified  the  Disclosure  in  accordance  with the
         Staff's comments.

Note 19.  Restatement of Consolidated Financial Statements, page F-28
- ---------------------------------------------------------------------

15.      Confirm  to us that  the  restatements  disclosed  in this  note to the
         financial  statements did not affect your financial statements included
         in your 10-QSBs for the fiscal  quarters  ended March 31, 2005 and June
         30, 2005. If after  considering  our comment you  determine  that these
         periods  should be  restated,  file  amended  10-QSBs  for the  periods
         affected.

         o        We remind you that when you file your restated  IO-QSB/A,  you
                  should appropriately address these items:

         o        An explanatory paragraph in the reissued audit opinion.

         o        Full compliance with APB 20, paragraphs 36 and 37.

         o        Fully update all affected portions of the document,  including
                  MD&A, selected financial data, and quarterly financial data.

         o        Updated Item 3 disclosures should include these items:

                  A   discussion   of  the   restatement   and  the   facts  and
                  circumstances surrounding it.

                  How the restatement  impacted the original conclusions of your
                  chief  executive  officer and chief  financial  officer on the
                  effectiveness of the disclosure controls and procedures.

                  Changes to internal controls over financial reporting.

                  Anticipated  changes to  disclosure  controls  and  procedures
                  and/or internal  controls over financial  reporting to prevent
                  future misstatements of a similar nature.

                  Refer to Items 307 and 308(c) of Regulation S-B.




Ms.  Jennifer Hardy
November 28, 2005
Page 6



         o        Updated certifications.

         Response: We will file amended 10-QSB's for March 31, 2005 and June 20,
         2005.

Exhibits 10.3 and 10.4
- ----------------------

16.      We note the response to prior comment 23. Allow us  sufficient  time to
         review the exhibits before requesting  acceleration of the registration
         statement's effectiveness.

         Response:  We are filing with  Pre-Effective  Amendment  No. 4 Exhibits
         10.3 and 10.4.

Exhibit 10.8
- ------------

17.      Exhibit  10.8  appears to be the same exhibit that was filed as exhibit
         10.17 in pre-effective amendment 2 to the registration statement. Since
         you  represent in response to prior  comment 24 that exhibit  10.17 was
         deleted because the agreements were  terminated,  it is unclear why you
         include the exhibit.  Since you include the exhibit, it is unclear also
         why you did not include a summary of the  omitted  terms in response to
         prior comment 25. Please revise or advise.

         Response:  This  agreement  is no  longer  in  effect  and  will not be
         included as an exhibit.

Exhibit 10.9
- ------------

18.      Exhibit  10.9  appears to be the same exhibit that was filed as exhibit
         10.18 in pre-effective amendment 2 to the registration statement. Since
         Jilin Provincial Huaruan Technology Company,  Ltd., a corporation owned
         by Mr. Xianggian Li, a director and officer of China BAK Battery,  is a
         party to the agreement, it is unclear why you did not submit a fair and
         accurate English transaction of the entire foreign language document in
         response to prior  comment 24.  Please  revise or advise.  Also confirm
         that Jilin Provincial  Huaruan Technology  Company,  Ltd. is a party to
         the  agreement  filed as exhibit 10.30 rather than exhibit 10.33 as you
         represent in response to prior comment 24.

         Response:   A  full   translation   is  included  at  Exhibit  10.9  of
         Pre-Effective Amendment No. 4.

Exhibit 10.33
- -------------

19.      We are unable to locate the  exhibit  in the  quarterly  report on Form
         10-QSB for the quarter ended June 30, 2005 that China BAK Battery filed
         with the Commission on August 19, 2005.  Please revise or advise.  Also
         confirm  that Mr.  Xiangqian  Li is not a guarantor  for the  agreement
         filed as exhibit  10.44 as you  represent in response to prior  comment
         24.




Ms.  Jennifer Hardy
November 28, 2005
Page 7


         Response:   A  full   translation  is  included  at  Exhibit  10.33  of
         Pre-Effective Amendment No. 4. Exhibit 10.33 is a Guarantee Contract of
         Maximum  Amount  between  Xiangqian  Li and Shuibei  Branch of Shenzhen
         Commercial  Bank.  Exhibit 10.44 is a registration  rights agreement to
         which Mr. Li is not a guarantor.

Exhibit 23.1
- ------------

20.      The consent obtained from Schwartz Levitsky Feldman LLP consents to the
         use of its name and use of the report of Independent  Registered Public
         Accounting  Firm dated December 30, 2004 and note 18(d) dated September
         16, 2005. However, the audit report that you included in your SB-2/A on
         page F-1 is dated September 30, 2005 and related to note 18(d).  Obtain
         and include in your filing an updated  consent  from your  auditor that
         references the correct audit report date for note 18(d).

         Response:  The audit report of Schwartz  Levitsky  Feldman LLP has been
         corrected to reflect that it is given as of September  16, 2005 and the
         consent of Schwartz Levitsky Feldman LLP reflects the corrected date.

                                     10-KSB
                                     ------

21.      It does not appear  that you  responded  to prior  comments  26 and 27.
         Thus, we reissue the comments and request that you amend the document.

         Response:  We will modify the Disclosure in accordance with the Staff's
         comments and refile by amendment.

                              June 30, 2005 10-QSB
                              --------------------

Item 3.  Controls and Procedures, page 40
- -----------------------------------------

22.      Your disclosure  concludes that your disclosure controls and procedures
         "are effective in timely alerting them to material  information related
         to us is required to be included in our periodic SEC filings."  This is
         an incomplete  definition of disclosure  controls and procedures  under
         Rules  13a-15(e) and  15d-15(e) of the Exchange Act.  Confirm to us and
         revise your  disclosure to clarify,  if true,  that you concluded  that
         your disclosure controls and procedures are effective to ensure that:

         o        Information  required  to be  disclosed  by you in the reports
                  that you file or submit  under the  Exchange  Act is recorded,
                  processed,  summarized,  and reported  within the time periods
                  specified in the Commission's rules and forms.

         o        Information  required  to be  disclosed  by an  issuer  in the
                  reports  that it files or submits  under the  Exchange  Act is
                  accumulated and communicated to your management, including its




Ms.  Jennifer Hardy
November 28, 2005
Page 8


                  principal  executive  and  principal  financial  officers,  or
                  persons performing similar functions,  as appropriate to allow
                  timely decisions regarding required disclosure.

         Refer to  Exchange  Act  Rules  13a-15(e)  and  15d-15(e)  for the full
         definition of disclosure controls and procedures.

         Response:  We will modify the Disclosure in accordance with the Staff's
         comments and refile by amendment.

            8-K dated September 14, 2005 and filed September 15, 2005
            ---------------------------------------------------------

Exhibit 10.1
- ------------

23.      As noted previously,  absent an order granting confidential  treatment,
         Item  601(b)(10)  of  Regulation  S-B  requires  the filing of material
         contracts,   including  attachments,  in  their  entirety.  Attachments
         include, for example,  annexes,  appendices,  exhibits,  and schedules.
         Since you did not file exhibits A-F to exhibit 10.1,  file by amendment
         the  exhibits.  See  comment 60 in our  February  11,  2005  letter and
         comment 23 in our August 2, 2005 letter.

         Response: We will file the exhibits by amendment.

         Please  feel  free to call if you have any  questions  about any of the
         foregoing.


                                                     Very truly yours,

                                                      /s/ Robin Bradford

                                                     Robin Bradford