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UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C.
20549

FORM 10−Q/A(Amendment No. 1)
_____________________________

(Mark One)

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended: March 31, 2013

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

For the transition period from ____________to
_____________Commission File Number: 001-32898

CHINA BAK BATTERY,
INC.(Exact Name of Registrant as Specified in Its Charter)

|Nevada                                | 88-0442833                   
|------------------------------------- | -----------------------------
|------------------------------------- | -----------------------------
|(State or other jurisdiction of       | (I.R.S. Empl. Ident. No.)    
|incorporation or organization)        |                              

BAK Industrial Park No. 1
BAK Street Kuichong Town, Longgang District Shenzhen 518119
Peoples Republic of China(Address of principal executive
offices, Zip Code)

(86-755) 6188-6818, ext. 6856(Registrants
telephone number, including area code)

Indicate by check mark whether
the registrant (1) has filed all reports required to be filed by Section 13 or
15(d) of the Securities Exchange Act of 1934 during the past 12 months (or for
such shorter period that the registrant was required to file such reports), and
(2) has been subject to such filing requirements for the past 90
days. Yes  X  No __

Indicate by check mark whether
the registrant has submitted electronically and posted on its corporate Web
site, if any, every Interactive Data File required to be submitted and posted
pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required
to submit and post such files).
Yes  X  No __

Indicate by check mark whether
the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of
large accelerated filer, accelerated filer and smaller reporting company
in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer [ ]    Accelerated filer
[ ]    Non-accelerated filer [ ] (Do not check if a smaller
reporting company)    Smaller reporting company [x]

Indicate by check mark whether
the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act). Yes___ No X

The number of shares outstanding of each of the issuers
classes of common stock, as of May 15, 2013 is as follows:

|Class of Securities              | Shares Outstanding             
|-------------------------------- | -------------------------------
|-------------------------------- | -------------------------------
|Common Stock, $0.001 par value   | 12,619,597                     

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Explanatory Note

This Amendment No. 1 to China BAK Battery, Inc.s Form 10-Q
filed on May 20, 2013 for the six months ended March 31, 2013 is being filed to
include dated and signed certifications consistent with the requirements of Item
601(B)(31) and (32) of Regulation S-K and Rule 13a-14(a) and (b) or Rule
15d-14(a) and (b). This Amendment No. 1 contains only the exhibits to the
original Form 10-Q that are being amended. The exhibits to the Form 10-Q as
originally filed which are not included herein are unchanged and continue in
full force and effect as originally filed. This Amendment No. 1 speaks as of the
date of the original filing of the Form 10-Q and has not been updated to reflect
events occurring subsequent to the original filing date.

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PART IIOTHER INFORMATION

ITEM 6. EXHIBITS.

|EXHIBITS. |                                                                                                                                                                                                                   
|--------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|          |                                                                                                                                                                                                                   
|31.1      | Certification of Principal
      Executive Officer and Principal Financial Officer filed pursuant to
      Section 302 of the Sarbanes-Oxley Act of 2002.                                                         
|          |                                                                                                                                                                                                                   
|32.1      | Certification of Principal
      Executive Officer and Principal Financial Officer furnished pursuant to 18
      U.S.C. Section 1350, as adopted pursuant to Section 906 of the
      Sarbanes-Oxley Act of 2002.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of
1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned thereunto duly authorized.

DATED: July 15, 2013

| | CHINA BAK BATTERY INC.                          
| | ------------------------------------------------
| |                                                 
| |                                                 
| | By: /s/ Xiangqian Li                            
| | Xiangqian Li, Chief
      Executive Officer and 
| | Interim Chief Financial
      Officer           
| | (Principal Executive
      Officer, Principal   
| | Financial Officer and
      Principal Accounting
| | Officer)                                        

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EXHIBIT INDEX

|Exhibit |                                                                                                                                                                                                                   
|------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Number  | Description                                                                                                                                                                                                       
|        |                                                                                                                                                                                                                   
|31.1    | Certification of Principal
      Executive Officer and Principal Financial Officer filed pursuant to
      Section 302 of the Sarbanes-Oxley Act of 2002.                                                         
|        |                                                                                                                                                                                                                   
|32.1    | Certification of Principal
      Executive Officer and Principal Financial Officer furnished pursuant to 18
      U.S.C. Section 1350, as adopted pursuant to Section 906 of the
      Sarbanes-Oxley Act of 2002.
|        |                                                                                                                                                                                                                   

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