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Other Long-term Payables (Narrative) (Details) (CNY) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013
Other Long-term Payables 1	150

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- Definition

Other Long-term Payables 1

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