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Principal Activities, Basis of Presentation and Organization (Details)																1 Months Ended															12 Months Ended
	Apr. 10, 2020	Mar. 13, 2020 USD ($)	Mar. 13, 2020 CNY (¥)	Oct. 14, 2019 shares	Jan. 07, 2019 USD ($) $ / shares shares	Jul. 08, 2018 USD ($)	May 10, 2017 USD ($)	Apr. 02, 2017 USD ($)	Jul. 28, 2016 USD ($) $ / shares shares	Mar. 04, 2016 $ / shares shares	Sep. 29, 2015 USD ($) $ / shares	Jul. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) shares	Oct. 01, 2007 USD ($)	Sep. 30, 2006 shares	Apr. 28, 2020	Apr. 27, 2020	Feb. 20, 2020	Jan. 27, 2020	Jul. 26, 2019 $ / shares shares	Jul. 24, 2019 USD ($)	Apr. 26, 2019 USD ($) $ / shares shares	May 04, 2018 USD ($)	May 31, 2017 USD ($) $ / shares shares	Apr. 26, 2017 USD ($)	Apr. 21, 2017 USD ($)	Jan. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)	Nov. 30, 2007 shares	Jan. 20, 2005 USD ($) shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2009 shares	Mar. 31, 2020 USD ($)	Mar. 31, 2020 CNY (¥)	Nov. 21, 2019 USD ($)	Oct. 19, 2019 USD ($)	Sep. 30, 2019 USD ($) shares	Aug. 05, 2019 USD ($)	Jul. 16, 2019 USD ($)	Jul. 16, 2019 CNY (¥)	Jun. 28, 2019 USD ($)	Jun. 28, 2019 CNY (¥)	Apr. 26, 2019 CNY (¥)	Jan. 07, 2019 CNY (¥)	Dec. 31, 2018 USD ($) $ / shares shares		Sep. 30, 2018 USD ($)	Jul. 10, 2018 USD ($)	Mar. 07, 2017 USD ($)	Feb. 17, 2017 USD ($)	Sep. 30, 2015	Dec. 27, 2013 USD ($)	Aug. 14, 2013 USD ($)
Principal Activities, Basis of Presentation and Organization (Textual)
Shares of common stock | shares									2,206,640															6,403,518						1,720,087
Gross Proceeds of common stock									$ 5,520,000															$ 9,600,000						$ 17,000,000
Shares placed in escrow | shares | shares																														435,910
Description of terms of shares places in escrow																														Pursuant to the Escrow Agreement, 50% of the escrowed shares were to be released to the investors in the private placement if audited net income of the Company for the fiscal year ended September 30, 2005 was not at least $12,000,000, and the remaining 50% was to be released to investors in the private placement if audited net income of the Company for the fiscal year ended September 30, 2006 was not at least $27,000,000. If the audited net income of the Company for the fiscal years ended September 30, 2005 and 2006 reached the above-mentioned targets, the 435,910 shares would be released to Mr. Li in the amount of 50% upon reaching the 2005 target and the remaining 50% upon reaching the 2006 target.
Shares released from escrow | shares | shares													73,749		217,955														217,955			73,749
Adjustments of additional paid in capital														$ 7,955,358
Ownership percentage of equity method investment																																																			50.00%
Shares transferred | shares | shares										3,000,000
Shares transferred price per share | $ / shares									$ 2.5	$ 2.4														$ 1.50
Debt amount																															$ 26,100,000
Common stock shares outstanding | shares																															53,076,696						44,175,481								26,647,478
Proceeds from advances from potential investors						$ 2,600,000					$ 9,847,644	$ 9,800,000	$ 9,800,000															$ 2,900,000
Debt conversion, converted instrument, amount											$ 4,376,731
Debt instrument, conversion price | $ / shares											$ 2.25													$ 1.50
Common stock, value, subscriptions																																																		$ 10,000,000
Proceeds from received investment from investors							$ 2,985,497	$ 1,999,910																	$ 1,119,982	$ 3,499,888
Bank Loans																																															$ 20,000,000
Other current liabilities																																															61,600,000
Banking facilities, amount																																															$ 4,600,000
Exchange price per share | $ / shares																																													$ 1.02
Other loans																															$ 1,499,736														$ 1,225,705	[1]
Transfer of related shares, description																															The Company has transferred the 217,955 shares related to the 2006 performance threshold to the relevant investors in fiscal year 2007 and the Company also have transferred 73,749 shares relating to the 2005 performance threshold to the investors who had entered the "2008 Settlement Agreements" with us in fiscal year 2008, pursuant to "Li Settlement Agreement" and "2008 Settlement Agreements", neither Mr. Li nor the Company had any remaining obligations to those related investors who participated in the Company's January 2005 private placement relating to the escrow shares.
Other current liabilities																															$ 7,351,587														$ 14,147,801
Forecast [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Original principal amount																																	$ 5,700,000
Exchange agreement, description																(i) partition a new promissory note in the original principal amount equal to $100,000 (the "Partitioned Promissory Note") from the outstanding balance of certain promissory note that the Company issued to the Lender on July 24, 2019, which has an original principal amount of $1,395,000, and (ii) exchange the Partitioned Promissory Note for the issuance of 312,500 shares of the Company's common stock, par value $0.001 per share to the Lender.
Borrowings amount		$ 3,500,000
Agreement CBAK Power, description	Agreement with CBAK Power and BAK SZ, whereby BAK SZ assigned its rights to the unpaid inventories cost owed by CBAK Power of approximately $1.0 million (RMB7,000,000), $2.2 million (RMB16,000,000) and $1.0 million (RMB7,300,000) (collectively $4.3 million, the "Sixth Debt") to Mr. Yunfei Li, Mr. Ping Shen and Asia EVK, respectively.
Cancellation agreement, description																	Pursuant to the terms of the cancellation agreement, Mr. Yunfei Li, Mr. Ping Shen and Asia EVK agreed to cancel the Sixth Debt in exchange for 2,062,619, 4,714,557 and 2,151,017 shares of common stock of the Company, respectively, at an exchange price of $0.48 per share.
Forecast [Member] | RMB [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Original principal amount | ¥																																		¥ 40,000,000
Borrowings amount | ¥			¥ 24,200,000
Subsequent Event [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange agreement, description																		(i) partition a new promissory note in the original principal amount equal to $100,000 (the "Partitioned Promissory Note") from the outstanding balance of certain promissory note that the Company issued to the Lender on July 24, 2019, which has an original principal amount of $1,395,000, and (ii) exchange the Partitioned Promissory Note for the issuance of 207,641 shares of the Company's common stock, par value $0.001 per share to the Lender.	(i) partition a new promissory note in the original principal amount equal to $100,000 (the "Partitioned Promissory Note) from the outstanding balance of certain promissory note that the Company issued to the Lender on July 24, 2019, which has an original principal amount of $1,395,000, and (ii) exchange the Partitioned Promissory Note for the issuance of 160,256 shares of the Company's common stock, par value $0.001 per share to the Lender.
Securities Purchase Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Original principal amount																					$ 1,395,000										$ 1,670,000
Bears interest rate																					10.00%										10.00%
Received proceeds																					$ 1,250,000										$ 1,500,000
Original issue discount																					125,000
Lender's expenses																					$ 20,000										20,000
Other current liabilities																															$ 42,300,000
First Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount					$ 5,000,000
Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																						$ 5,400,000
Third Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																									$ 3,900,000
Fourth Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																							$ 3,300,000
Mr. Yunfei Li [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Shares of common stock | shares																								746,018
Common stock shares outstanding | shares										3,000,000																					8,589,919
Sale of stock, percentage of ownership after transaction										17.30%																					16.20%
Common stock, value, subscriptions																											$ 1,120,000
Proceeds from received investment from investors																											$ 225,784
Mr. Yunfei Li [Member] | First Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount					$ 1,600,000
Mr. Yunfei Li [Member] | First Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares					$ 1.02
Cancel debt exchange in to common stock | shares					1,666,667
Mr. Yunfei Li [Member] | Third Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																									2,500,000
Mr. Xiangqian Li [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Common stock shares outstanding | shares										760,557
Sale of stock, percentage of ownership after transaction										4.40%
Mr. Dawei Li [Member] | First Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount					$ 3,400,000
Mr. Dawei Li [Member] | First Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares					$ 1.02
Cancel debt exchange in to common stock | shares					3,431,373
Mr. Dawei Li [Member] | Third Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																									$ 1,400,000
Mr. Dawei Li [Member] | Third Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																				$ 1.05
Cancel debt exchange in to common stock | shares																				1,384,717
Mr. Jun Lang [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																						$ 300,000
Mr. Jun Lang [Member] | Second Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																						$ 1.1
Cancel debt exchange in to common stock | shares																						300,534
Ms. Jing Shi [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																						$ 100,000
Ms. Jing Shi [Member] | Second Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																						$ 1.1
Cancel debt exchange in to common stock | shares																						123,208
Asia EVK Energy Auto Limited [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																						$ 5,000,000
Asia EVK Energy Auto Limited [Member] | Second Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																						$ 1.1
Cancel debt exchange in to common stock | shares																						4,782,163
Asia EVK Energy Auto Limited [Member] | Fourth Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																							2,800,000
Asia EVK Energy Auto Limited [Member] | Fourth Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																				$ 1.05
Cancel debt exchange in to common stock | shares																				2,769,435
Mr. Yunfei Li [Member] | Third Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Exchange price per share | $ / shares																				$ 1.05
Cancel debt exchange in to common stock | shares																				2,938,067
Mr. Yunfei Li [Member] | Fourth Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount																																							$ 400,000
Mr. Shangdong Liu [Member] | Fifth Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Cancel debt exchange in to common stock | shares				528,053
Mr. Shibin Mao [Member] | Fifth Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Cancel debt exchange in to common stock | shares				3,536,068
Ms. Lijuan Wang [Member] | Fifth Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Cancel debt exchange in to common stock | shares				2,267,798
Mr. Ping Shen [Member] | Fifth Debt [Member] | Cancellation Agreement [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Cancel debt exchange in to common stock | shares				2,267,798
RMB [Member] | Mr. Yunfei Li [Member] | First Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																												¥ 11,647,890
RMB [Member] | Mr. Yunfei Li [Member] | Third Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																										¥ 18,000,000
RMB [Member] | Mr. Dawei Li [Member] | First Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																												¥ 23,980,950
RMB [Member] | Mr. Dawei Li [Member] | Third Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																										¥ 10,000,000
RMB [Member] | Mr. Jun Lang [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																											¥ 2,225,082
RMB [Member] | Ms. Jing Shi [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																											912,204
RMB [Member] | Asia EVK Energy Auto Limited [Member] | Second Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																											¥ 35,406,036
RMB [Member] | Asia EVK Energy Auto Limited [Member] | Fourth Debt [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																								¥ 20,000,000
RMB [Member] | Mr. Yunfei Li [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Debt amount | ¥																																								¥ 2,813,810
Suzhou [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Registered capital of subsidiary																							$ 1,500,000
Accumulated contributions to subsidiary																																					$ 1,300,000
Ownership percentage of equity method investment																							10.00%																													90.00%
Ownership percentage of noncontrolling interest																																					10.00%
Company contribtion related, description																							Up to the date of this report, the Company has contributed RMB9.0 million (approximately $1.3 million), and the other shareholders have contributed RMB1.0 million (approximately $0.1 million) to CBAK Suzhou through injection of a series of cash.
Accumulated contributions to subsidiary from noncontrolling interests																																					$ 140,000
Suzhou [Member] | RMB [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Registered capital of subsidiary																							$ 10,000,000
Accumulated contributions to subsidiary																																					9,900,000
Ownership percentage of equity method investment																							90.00%
Accumulated contributions to subsidiary from noncontrolling interests																																					$ 1,000,000
Cbak Trading [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Registered capital of subsidiary																																																					$ 500,000
Accumulated contributions to subsidiary																																						$ 100,000
Cash																																						2,435,000
Registered capital increased																																						$ 5,000,000
Cbak Power [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Registered capital of subsidiary																																																				$ 30,000,000
Accumulated contributions to subsidiary																																																	$ 29,999,978
Registered capital increased																																				$ 60,000,000												$ 50,000,000
CBAK Energy [Member]
Principal Activities, Basis of Presentation and Organization (Textual)
Registered capital increased																																			$ 50,000,000
[1] On July 7, 2016, Shenzhen Huijie Purification System Engineering Co., Ltd ("Shenzhen Huijie"), one of the Company's contractors, filed a lawsuit against CBAK Power in the Peoples' Court of Zhuanghe City, Dalian for the failure to pay pursuant to the terms of the contract and for entrusting part of the project to a third party without their prior consent. The plaintiff sought a total amount of $1,210,799 (RMB8,430,792), including construction costs of $0.9 million (RMB6.3 million), interest of $29,812 (RMB0.2 million) and compensation of $0.3 million (RMB1.9 million), which were already accrued for as of September 30, 2016. On September 7, 2016, upon the request of Shenzhen Huijie, the Court froze CBAK Power's bank deposits totaling $1,210,799 (RMB8,430,792) for a period of one year. Further on September 1, 2017, upon the request of Shenzhen Huijie, the Court froze the bank deposits for another year until August 31, 2018. The Court further froze the bank deposits for another year until August 27, 2019 upon the request of Shenzhen Huijie on August 27, 2018. Upon the request from Shenzhen Huijie, the Court again froze the bank deposits for another year until August 27, 2020.

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