Schedule of Advance From A Former Subsidiary (Details)	6 Months Ended
Sep. 30, 2015 USD ($)
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 1	$ 0
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 2	108,634
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 3	0
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 4	703,736
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 5	0
Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 6	$ 812,370

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 6

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNineKsPKEightpTwofgRfx
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 5

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNineLDJqFourSixSevennfZerotQ
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 3

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNineSixpOneLwFyBlnxp
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 4

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNineVPnTGHDXNBvg
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 2

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNinemQLkLSevenSixFourFiveGrM
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Balances With Former Subsidiaries Schedule Of Trade Payable To A Former Subsidiary 1

No definition available.

Name:	cbak_ScheduleOfTradePayableToAFormerSubsidiaryZeroThreeTwoOneFourThreeSevenZeroNinepbEightFFourftEightFPTJ
Namespace Prefix:	cbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration