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Pledged deposits (Details)				1 Months Ended																								3 Months Ended
		Mar. 05, 2021 USD ($)	Mar. 05, 2021 CNY (¥)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 CNY (¥)	May 31, 2021 USD ($)	May 31, 2021 CNY (¥)	Apr. 30, 2021 USD ($)	Apr. 30, 2021 CNY (¥)	Mar. 31, 2021 USD ($)	Mar. 31, 2021 CNY (¥)	Oct. 31, 2020 USD ($)	Oct. 31, 2020 CNY (¥)	Jul. 31, 2020 USD ($)	Jul. 31, 2020 CNY (¥)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 CNY (¥)	May 31, 2020 USD ($)	May 31, 2020 CNY (¥)	Mar. 20, 2020 USD ($)	Mar. 20, 2020 CNY (¥)	Feb. 29, 2020 USD ($)	Feb. 29, 2020 CNY (¥)	Nov. 30, 2019 USD ($)	Nov. 30, 2019 CNY (¥)	Oct. 31, 2019 USD ($)	Oct. 31, 2019 CNY (¥)	Mar. 31, 2021 USD ($)	Mar. 31, 2021 CNY (¥)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 CNY (¥)	Mar. 31, 2021 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CNY (¥)	Oct. 31, 2020 CNY (¥)	Aug. 31, 2020 USD ($)	Aug. 31, 2020 CNY (¥)	Jul. 31, 2020 CNY (¥)	Jun. 30, 2020 CNY (¥)	May 31, 2020 CNY (¥)	Feb. 29, 2020 CNY (¥)	Nov. 30, 2019 CNY (¥)
Pledged deposits (Details) [Line Items]
Material purchase cost																				$ 1,932,947
Payments for legal settlements														$ 600,000	¥ 3,635,192
Equipment cost																												$ 263,094	¥ 1,724,000
Liquidated damages	[1]									$ 1,210,119																		1,210,119					$ 1,210,119
Suzhou Security [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																								$ 21,321	¥ 139,713
Service expenses amount																								21,198	138,908
Interest																								123	¥ 805
Bank deposits																								$ 20,000																		¥ 150,000
Frozen by bank										5,047																		5,047				¥ 33,073
Accrued service cost										21,198	¥ 138,908
Cangzhou Huibang [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																				310,000	¥ 2,029,594
Interest																				14,804	¥ 96,647
Bank deposits																																	400,000	¥ 2,650,000
Frozen by bank																																120,898	18,518
Material purchase cost																				$ 300,000													300,000	1,932,947
Dongguan Shanshan [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																						$ 700,000	¥ 4,434,209
Bank deposits														600,000								$ 700,000																¥ 3,365,192			¥ 4,434,209
Frozen by bank																																	55,230	360,576
Material purchase cost										516,865																		516,865				3,374,403
Settlement amount														$ 600,000	¥ 3,635,192
Payments for legal settlements		$ 260,393	¥ 1,700,000	$ 32,088	¥ 209,487	$ 76,586	¥ 500,000	$ 76,586	¥ 500,000	76,586	¥ 500,000
Payments			¥ 1,700,000																									76,303			¥ 500,000
Nanjing Jinlong [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																$ 125,443	¥ 822,000
Bank deposits																125,443																							¥ 822,000
Frozen by bank																2,422																							15,869
Material purchase cost																125,443																							822,000
Xi'an Anpu [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																129,270	843,954
Equipment cost																117,636	¥ 768,000
Liquidated damages																$ 11,634																							¥ 75,954
Employees compensation, description																the request of Xi’an Anpu for property preservation, the Court of Dalian Economic and Technology Development Zone ordered to freeze CBAK Power’s bank deposits $0.1 million (RMB843,954) for a period to May 11, 2021. As of December 31, 2020, $98,284 (RMB641,656) was frozen by bank. The property preservation was released on February 25, 2021 upon CBAK Power settlement.	the request of Xi’an Anpu for property preservation, the Court of Dalian Economic and Technology Development Zone ordered to freeze CBAK Power’s bank deposits $0.1 million (RMB843,954) for a period to May 11, 2021. As of December 31, 2020, $98,284 (RMB641,656) was frozen by bank. The property preservation was released on February 25, 2021 upon CBAK Power settlement.
Tianjin Changyuan[Member]
Pledged deposits (Details) [Line Items]
Total sought amount																		$ 13,040	¥ 85,136
Interest																		874	5,707
Bank deposits																		13,041																						¥ 85,136
Frozen by bank																																	13,041	85,136
Material cost																		$ 12,166	¥ 79,429
Jiuzhao [Member]
Pledged deposits (Details) [Line Items]
Total sought amount												$ 900,000	¥ 6,000,000
Interest												19,871	129,732
Bank deposits												900,000																							¥ 6,000,000
Frozen by bank										37,769																		37,769				247,492
Material purchase cost										$ 600,000																		$ 600,000				¥ 3,870,267
Material cost												$ 900,000	¥ 5,870,267
Chongqing Zhongrun [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																										$ 400,000	¥ 2,484,948
Interest																										13,370	87,288
Bank deposits																																				$ 200,000	¥ 1,249,836
Frozen by bank																																	2,224	14,521
Material purchase cost																																	$ 200,000	¥ 1,104,007
Payments																														$ 198,144	¥ 1,293,600
Material cost																										$ 400,000	¥ 2,397,660
[1] On August 15, 2006, the SEC declared effective a post-effective amendment that the Company had filed on August 4, 2006, terminating the effectiveness of a resale registration statement on Form SB-2 that had been filed pursuant to a registration rights agreement with certain shareholders to register the resale of shares held by those shareholders. The Company subsequently filed Form S-1 for these shareholders. On December 8, 2006, the Company filed its Annual Report on Form 10-K for the year ended September 30, 2006 (the “2006 Form 10-K”). After the filing of the 2006 Form 10-K, the Company’s previously filed registration statement on Form S-1 was no longer available for resale by the selling shareholders whose shares were included in such Form S-1. Under the registration rights agreement, those selling shareholders became eligible for liquidated damages from the Company relating to the above two events totaling approximately $1,051,000. As of December 31, 2019 and March 31, 2020, no liquidated damages relating to both events have been paid.

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