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Loans (Details)
¥ in Millions
 1 Months Ended 2 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2022
USD ($)
Jun. 22, 2022
USD ($)
Mar. 08, 2022
Feb. 09, 2022
Jun. 04, 2018
Apr. 28, 2022
Mar. 21, 2022
Jan. 17, 2022
Nov. 16, 2021
Apr. 19, 2021
Jun. 28, 2020
Nov. 30, 2022
USD ($)
Nov. 30, 2022
CNY (¥)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2020
Mar. 31, 2023
USD ($)
Mar. 31, 2023
CNY (¥)
Mar. 31, 2023
USD ($)
Mar. 31, 2023
CNY (¥)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2019
Mar. 31, 2023
CNY (¥)
Sep. 25, 2022
CNY (¥)
Jun. 22, 2022
CNY (¥)
Dec. 31, 2021
USD ($)
Loans (Details) [Line Items]                                                      
Cash                                         $ 1,515,611 $ 13,860,346          
Bills receivable amount                           $ 500,000             500,000           $ 4,400,000
Banking facilities                           6,200,000             6,200,000            
Interest amount                           183,291 $ 19           469,402 306,514          
China Zheshang Bank Co Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Equity percentage   $ 100                                                  
Jiangsu Gaochun Rural Commercial Bank [Member]                                                      
Loans (Details) [Line Items]                                                      
Equity percentage $ 100                                                    
Forecast [Member]                                                      
Loans (Details) [Line Items]                                                      
Total amount borrowing                                     $ 11,200,000 ¥ 80.0              
Cash                                     11,200,000 80.0              
Forecast [Member] | China Zheshang Bank Co Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Total amount borrowing                       $ 4,000,000 ¥ 28.8           7,800,000 55.8              
Cash                       $ 4,000,000 ¥ 28.8           7,500,000 53.3              
Bills receivable amount                                 $ 600,000   600,000         ¥ 4.0      
Forecast [Member] | Shaoxing Branch of Bank of Communications Co., Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Total amount borrowing                                     800,000 5.5              
Cash                                     $ 800,000 ¥ 5.5              
Forecast [Member] | China Merchant Bank [Member]                                                      
Loans (Details) [Line Items]                                                      
Total amount borrowing                                 12,800,000 ¥ 91.2                  
Cash                                 $ 12,800,000 ¥ 91.2                  
China Everbright Bank Dalian Branch [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans         On June 4, 2018, the Company obtained banking facilities from China Everbright Bank Dalian Branch with a maximum amount of RMB200 million (approximately $30.63 million) bearing interest at 130% of benchmark rate of the People’s Bank of China (“PBOC”) for three-year long-term loans with the term from June 12, 2018 to June 10, 2021, at current rate 6.175% per annum. The facilities were secured by the Company’s land use rights, buildings, machinery and equipment. According to the original repayment schedule, the loans are repayable in six installments of RMB0.8 million ($0.12 million) on December 10, 2018, RMB24.3 million ($3.72 million) on June 10, 2019, RMB0.8 million ($0.12 million) on December 10, 2019, RMB74.7 million ($11.44 million) on June 10, 2020, RMB0.8 million ($0.12 million) on December 10, 2020 and RMB66.3 million ($10.16 million) on June 10, 2021. The Company repaid the bank loan of RMB0.8 million ($0.12 million), RMB24.3 million ($3.72 million) and RMB0.8 million ($0.12 million) in December 2018, June 2019 and December 2019, respectively.            On June 28, 2020, the Company entered into a supplemental agreement with China Everbright Bank Dalian Branch to change the repayment schedule. According to the modification agreement, the remaining RMB141.8 million (approximately $21.72 million) loans are repayable in eight instalments consisting of RMB1.09 million ($0.17 million) on June 10, 2020, RMB1 million ($0.15 million) on December 10, 2020, RMB2 million ($0.31 million) on January 10, 2021, RMB2 million ($0.31 million) on February 10, 2021, RMB2 million ($0.31 million) on March 10, 2021, RMB2 million ($0.31 million) on April 10, 2021, RMB2 million ($0.31 million) on May 10, 2021, and RMB129.7 million ($19.9 million) on June 10, 2021, respectively. As of June 30, 2021, the Company repaid all the bank loan.                                 
Shaoxing Branch of Bank of Communications Co., Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans                 On November 16, 2021, the Company obtained banking facilities from Shaoxing Branch of Bank of Communications Co., Ltd with a maximum amount of RMB120.1 million (approximately $16.9 million) with the term from November 18, 2021 to November 18, 2026. The facility was secured by the Company’s land use rights and buildings. Under the facility, the Company has borrowed a total of RMB56.0 million (approximately $8.8 million) and RMB76.1 million (approximately $10.7 million) as of December 31, 2021 and September 30, 2022, respectively, for varying terms ending between November 16, 2022 and May 16, 2023, bearing interest at 4.15% - 4.35% per annum. Subsequent to September 30, 2022, the Company has repaid RMB56 million (approximately $7.9 million) and drawn down another RMB56 million (approximately $7.9 million) under the same facility for an annual interest rate at 4.15%, repayable by May 16, 2023.                                     
China Merchant Bank [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of bills                               In October to December 2020, the Company borrowed a series of acceptance bills from China Merchants Bank totaled RMB13.5 million (approximately $2.07 million) for various terms through April to June 2021, which was secured by the Company’s cash totaled RMB13.5 million (approximately $2.07 million). The Company repaid the bills through April to June 2021.                       
Bank of Ningbo Co., Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of bills             On March 21, 2022, the Company renewed the above acceptance bills facilities from Bank of Ningbo Co., Ltd with a maximum amount of RMB71.6 million ($10.1 million) with other terms remain the same. Under the facilities, as of September 30, 2022, the Company borrowed a total of RMB11.5 million (approximately $1.6 million) in the form of bills payable for various terms expiring from November 2022 to March 2023, which was secured by the Company’s cash totaling RMB11.5 million (approximately $1.6 million) (Note 2).      On April 19, 2021, the Company obtained five-year acceptance bills facilities from Bank of Ningbo Co., Ltd with a maximum amount of RMB84.4 million (approximately $13.2 million). Any amount drawn under the facilities requires security in the form of cash or bank acceptance bills receivable of at least the same amount. Under the facilities, as of December 31, 2021, the Company borrowed a total of RMB10 million (approximately $1.6 million) from Bank of Ningbo Co., Ltd in the form of bills payable for a various term expiring from January to February 2022, which was secured by the Company’s cash totaled RMB10 million (approximately $1.6 million). The Company repaid the bills in January to February 2022.                                   
China Zheshang Bank Co Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans               On January 17, 2022, the Company obtained a one-year term facility from Agricultural Bank of China with a maximum amount of RMB10 million (approximately $1.4 million) bearing interest at 105% of benchmark rate of the People’s Bank of China (“PBOC”) for short-term loans, which is 3.85% per annum. The facility was guaranteed by the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. The Company borrowed RMB10 million (approximately $1.4 million) on the same date for a term until January 16, 2023.                                       
Jiangsu Gaochun Rural Commercial Bank [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans       On February 9, 2022, the Company obtained a one-year term facility from Jiangsu Gaochun Rural Commercial Bank with a maximum amount of RMB10 million (approximately $1.4 million) bearing interest at 124% of benchmark rate of the People’s Bank of China (“PBOC”) for short-term loans, which is 4.94% per annum. The facility was guaranteed by 100% equity in CBAK Nanjing held by BAK Investment and the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. The Company borrowed RMB10 million (approximately $1.4 million) on the same date for a term until January 28, 2023. On March 8, 2022, the Company obtained a one-year term facility from China Zheshang Bank Co., Ltd. Shangyu Branch with a maximum amount of RMB10 million (approximately $1.4 million) bearing interest at 5.5% per annum. The facility was guaranteed by 100% equity in CBAK Power held by BAK Asia and the Company’s CEO, Mr. Yunfei Li. The Company borrowed RMB10 million (approximately $1.4 million) on the same date. On May 17, 2022, the Company early repaid the loan principal and related loan interests. On April 28, 2022, the Company obtained a three-year term facility from Industrial and Commercial Bank of China Nanjing Gaochun branch, with a maximum amount of RMB12 million (approximately $1.7 million) with the term from April 21, 2022 to April 21, 2025. The facilities were guaranteed by the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. Under the facility, the Company borrowed RMB10 million (approximately $1.4 million) on April 29, 2022, bearing interest at 3.95% per annum for a term until April 29, 2023. On June 22, 2022, the Company obtained another one-year term facility from China Zheshang Bank Co., Ltd. Shangyu Branch with a maximum amount of RMB10 million (approximately $1.4 million) bearing interest at 4.5% per annum. The facility was guaranteed by 100% equity in CBAK Power held by BAK Asia and the Company’s CEO, Mr. Yunfei Li. The Company borrowed RMB10 million (approximately $1.4 million) on the same date for a term until June 21, 2023. On September 25, 2022, the Company entered into a new one-year term facility with Jiangsu Gaochun Rural Commercial Bank with a maximum amount of RMB9 million (approximately $1.3 million) bearing interest rate at 4.81% per annum. The facility was guaranteed by 100% equity in CBAK Nanjing held by BAK Investment and the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan.                                              
Maximum amount $ 1,300,000                                               ¥ 9.0    
Bearing interest rate 4.81%                                               4.81%    
Borrowed amount $ 1,300,000                                               ¥ 9.0    
China Zheshang Bank Co Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans     , the Company obtained a one-year term facility from China Zheshang Bank Co., Ltd. Shangyu Branch with a maximum amount of RMB10 million (approximately $1.4 million) bearing interest at 5.5% per annum. The facility was guaranteed by 100% equity in CBAK Power held by BAK Asia and the Company’s CEO, Mr. Yunfei Li. The Company borrowed RMB10 million (approximately $1.4 million) on the same date. On May 17, 2022, the Company early repaid the loan principal and related loan interests.On April 28, 2022, the Company obtained a three-year term facility from Industrial and Commercial Bank of China Nanjing Gaochun branch, with a maximum amount of RMB12 million (approximately $1.7 million) with the term from April 21, 2022 to April 21, 2025. The facilities were guaranteed by the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. Under the facility, the Company borrowed RMB10 million (approximately $1.4 million) on April 29, 2022, bearing interest at 3.95% per annum for a term until April 29, 2023. On June 22, 2022, the Company obtained another one-year term facility from China Zheshang Bank Co., Ltd.                                                
Maximum amount   $ 1,400,000                                               ¥ 10.0  
Bearing interest rate   4.50%                                               4.50%  
Borrowed amount   $ 1,400,000                                               ¥ 10.0  
Industrial and Commercial Bank of China Nanjing Gaochun Branch [Member]                                                      
Loans (Details) [Line Items]                                                      
Description of loans           The facilities were guaranteed by the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. Under the facility, the Company borrowed RMB10 million (approximately $1.4 million) on April 29, 2022, bearing interest at 3.95% per annum for a term until April 29, 2023.                                          
Suzhou Zhengyuanwei Needle Ce Co., Ltd [Member]                                                      
Loans (Details) [Line Items]                                                      
Loan agreement description                                             (f)In 2019, the Company entered into a short term loan agreement with Suzhou Zhengyuanwei Needle Ce Co., Ltd, an unrelated party to loan RMB0.6 million (approximately $0.1 million), bearing annual interest rate of 12%. As of September 30, 2022, loan amount of RMB0.5 million ($0.1 million) remained outstanding.        
Unrelated Parties [Member]                                                      
Loans (Details) [Line Items]                                                      
Borrowings from unrelated parties                           $ 2,238 $ 2,370           $ 6,896 $ 7,031