-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Fegla/kIRhLaB8HIWBJLeRhE/eh0t1nf+XMUbBnUnj0GUEEhQd7voRRG/kG9mwuF
 hCoPF34BvM6YmEyYQdHx6Q==

<SEC-DOCUMENT>0001144204-07-051721.txt : 20070928
<SEC-HEADER>0001144204-07-051721.hdr.sgml : 20070928
<ACCEPTANCE-DATETIME>20070928141715
ACCESSION NUMBER:		0001144204-07-051721
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070926
FILED AS OF DATE:		20070928
DATE AS OF CHANGE:		20070928

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHINA BAK BATTERY INC
		CENTRAL INDEX KEY:			0001117171
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				880442833
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		BAK INDUSTRIAL PARK, NO. 1 BAK STREET
		STREET 2:		KUICHONG TOWN, LONGGANG DISTRICT
		CITY:			SHENZHEN PEOPLE
		STATE:			F4
		ZIP:			518119
		BUSINESS PHONE:		86-755-8977-0093

	MAIL ADDRESS:	
		STREET 1:		BAK INDUSTRIAL PARK, NO. 1 BAK STREET
		STREET 2:		KUICHONG TOWN, LONGGANG DISTRICT
		CITY:			SHENZHEN PEOPLE
		STATE:			F4
		ZIP:			518119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MEDINA COFFEE INC
		DATE OF NAME CHANGE:	20000626

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Zou Yanlong
		CENTRAL INDEX KEY:			0001377583

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32898
		FILM NUMBER:		071141854

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(86) 755-89770093

	MAIL ADDRESS:	
		STREET 1:		C/O CHINA BAK BATTERY, INC.
		STREET 2:		NO. 1 BAK STREET, KUICHONG TOWN
		CITY:			LONGGANG DISTRICT, SHENZHEN
		STATE:			F4
		ZIP:			518119
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>v089002_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-09-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001117171</issuerCik>
        <issuerName>CHINA BAK BATTERY INC</issuerName>
        <issuerTradingSymbol>CBAK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001377583</rptOwnerCik>
            <rptOwnerName>Zou Yanlong</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BAK INDUSTRIAL PARK, NO. 1 BAK STREET,</rptOwnerStreet1>
            <rptOwnerStreet2>KUICHONG TOWN, LONGGANG DISTRICT</rptOwnerStreet2>
            <rptOwnerCity>SHENZHEN</rptOwnerCity>
            <rptOwnerState>F4</rptOwnerState>
            <rptOwnerZipCode>518119</rptOwnerZipCode>
            <rptOwnerStateDescription>CHINA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-09-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>44903</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.30</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>70485</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-09-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.68</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40485</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Yanlong Zou</signatureName>
        <signatureDate>2007-09-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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