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Loans (Details) ¥ in Millions |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
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Mar. 09, 2023 USD ($) | Mar. 09, 2023 CNY (¥) | Jan. 07, 2023 | Dec. 09, 2022 USD ($) | Dec. 09, 2022 CNY (¥) | Dec. 09, 2022 USD ($) | Nov. 08, 2022 | Mar. 08, 2022 | Feb. 09, 2022 | Mar. 29, 2023 | Sep. 25, 2022 | Jun. 22, 2022 | Apr. 28, 2022 | Mar. 21, 2022 | Jan. 17, 2022 | Nov. 16, 2021 | Apr. 19, 2021 | Mar. 31, 2023 USD ($) | Mar. 31, 2023 CNY (¥) | Mar. 31, 2022 USD ($) | Dec. 31, 2019 | Mar. 31, 2023 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 09, 2022 CNY (¥)
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit amount |  |  |  | $ 700,000 | ¥ 5.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit |  |  |  | $ 200,000 |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ¥ 1.5
Interest rate |  |  |  |  |  | 2.70% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,499,730 |  |  |  |  |  |
Bills receivable amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,900,000 |  |  |  |  | $ 3,400,000 |
Banking facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,600,000 |  |  |  |  |  |
Interest amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 171,412 |  | 122,973 |  |  |  |
Interest amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,192 |  | $ 2,363 |  |  |  |
Shaoxing Branch of Bank of Communications Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | the Company obtained banking facilities from Shaoxing Branch of Bank of Communications Co., Ltd with a maximum amount of RMB120.1 million (approximately $17.5 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 RMB59.0 million (approximately $8.5 million) and RMB74.0 million (approximately $10.8 million) as of December 31, 2022 and March 31, 2023, respectively, for varying terms ending between May 2023 to March 2024, bearing interest at 3.65% to 4.15% per annum. |  |  |  |  |  |  |  |
Total amount borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,700,000 | ¥ 32.4 |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 | 17.4 |  |  |  |  |
Bank of Ningbo Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of bills |  |  |  |  |  |  |  |  |  |  |  |  |  | the Company renewed the above acceptance bills facilities from Bank of Ningbo Co., Ltd with a maximum amount of RMB71.6 million ($10.4 million) with other terms remain the same. Under the facilities, as of December 31, 2022 and March 31, 2023, the Company borrowed a total of RMB15.9 million (approximately $2.3 million) and RMB21.3 million (approximately $3.1 million), respectively, in the form of bills payable for various terms expiring from April to September 2023, which was secured by the Company’s cash totaling RMB15.9 million (approximately $2.3 million) and RMB21.3 million (approximately $3.1 million) (Note 2), respectively. |  |  | 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. |  |  |  |  |  |  |
Agricultural Bank of China [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 and secured by an unrelated third party, Jiangsu Credits Financing Guarantee Co., Ltd. The Company borrowed RMB10 million (approximately $1.4 million) on January 20, 2022 for a term until January 16, 2023. The Company early repaid RMB10 million (approximately $1.5 million) on January 5, 2023. On January 5, 2023, the Company obtained a one-year term loan of RMB10 million (approximately $1.5 million) for a period of one year to January 4, 2023, bearing interest at 120% of benchmark rate of the PBOC for short-term loans, which is 3.85% per annum, while other terms and guarantee remain the same. The Company borrowed RMB10 million (approximately $1.5 million) on January 6, 2023. |  |  |  |  |  |  |  |  |
Total amount borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,400,000 | 9.8 |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,400,000 | 9.8 |  |  |  |  |
Jiangsu Gaochun Rural Commercial Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  |  |  |  |  |  |  | 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 the Company’s CEO, Mr. Yunfei Li and Mr. Yunfei Li’s wife Ms. Qinghui Yuan. The Company borrowed RMB10 million (approximately $1.5 million) on February 17, 2022 for a term until January 28, 2023. The Company repaid RMB10 million (approximately $1.4 million) on January 16, 2023. On January 14, 2023 , the Company obtained a one-year loan of RMB10 million (approximately $1.5 million) bearing interest at 129% of benchmark rate of PBOC for short-term loans, which is 4.70% per annum. The Company borrowed RMB10 million (approximately $1.5 million) on January 17, 2023 for a term until January 13, 2024. |  | the Company entered into another 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. The Company borrowed RMB9 million (approximately $1.3 million) on September 27, 2022 for a term until September 24, 2023. |  |  |  |  |  |  |  |  |  |  |  |  |
Total amount borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000 | 22.2 |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000 | 22.2 |  |  |  |  |
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 $1.5 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 $1.5 million) on the same date. On May 17, 2022, the Company early repaid the loan principal and related loan interests. |  |  |  | the Company obtained another one-year term facility from China Zheshang Bank Co., Ltd. Shangyu Branch with a maximum amount of RMB10 million (approximately $1.5 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 $1.5 million) on the same date for a term until June 21, 2023. On November 10, 2022, the Company early repaid the loan principal and the related loan interests. |  |  |  |  |  |  |  |  |  |  |  |
Total amount borrowing | $ 700,000 | ¥ 5.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,400,000 | 78.4 |  |  |  |  |
Cash |  | ¥ 1.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,400,000 | 50.5 |  |  |  |  |
Percentage of bills receivable | 3.65% | 3.65% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bills receivable amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,900,000 |  |  |  | ¥ 33.5 |  |
Industrial and Commercial Bank of China Nanjing Gaochun Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  |  |  |  |  |  |  |  |  |  |  | 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 facility was 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 $1.5 million) on April 29, 2022, bearing interest at 3.95% per annum for a term until April 29, 2023. The Company repaid RMB10 million (approximately $1.5 million) on April 19, 2023. On April 19, 2023, the Company obtained an other one-year loan of RMB10 million (approximately $1.5 million) bearing interest at 102.5% of benchmark rate of PBOC for short-term loans, which is 3.90% per annum. The Company borrowed RMB10 million (approximately $1.5 million) on April 20, 2023 for a term until April 19, 2024. |  |  |  |  |  |  |  |  |  |  |
China Citibank Shaoxing Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  |  |  |  |  | On November 8, 2022, the Company entered into a short-term loan agreement with China CITIC Bank Shaoxing Branch to August 9, 2023 with a maximum amount of RMB10 million (approximately $1.5 million) bearing interest rate at 4.35% per annum. The Company borrowed RMB10 million (approximately $1.5 million) on the same date. The Company has repaid RMB5 million (approximately $0.7 million) and RMB0.2 million (approximately $0.1 million) on November 16, 2022 and December 27, 2022, respectively. Subsequent to the repayment, the Company entered into another short-term loan agreement with China CITIC Bank Shaoxing Branch for a one-year short-term loan agreement with a maximum amount of RMB0.2 million (approximately $0.1 million) for December 27, 2022 to December 27, 2023, bearing interest rate at 4.20% per annum. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Everbright Bank Dalian Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of loans |  |  | the Company obtained a two-year term facility from Postal Savings Bank of China, Nanjing Gaochun Branch with a maximum amount of RMB10 million (approximately $1.5 million) for a period from January 7, 2023 to January 6, 2025. |  |  |  |  |  |  | the Company and Bank of China Limited entered into a short-term loan agreement for one year from March 29, 2023 to March 28, 2024 for a maximum loan amount to RMB5 million (approximately $0.7 million) bearing interest rate at 3.65% per annum. The Company borrowed RMB5 million (approximately $0.7 million) on the same date. The loan was secured by the Company’s land use rights and buildings in Dalian. |  |  |  |  |  |  |  |  |  |  |  |  |  |
China Merchants Bank Dalian Branch [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total amount borrowing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,900,000 | 102.6 |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,900,000 | ¥ 102.6 |  |  |  |  |
China Merchants Bank [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of bills |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The Company borrowed a series of acceptance bills from Bank of China Limited totaling RMB20.7 million (approximately $3.0 million) for various terms through September 2023, which was secured by the Company’s cash totaling RMB20.7 million (approximately $3.0 million) (Note 2). | The Company borrowed a series of acceptance bills from Bank of China Limited totaling RMB20.7 million (approximately $3.0 million) for various terms through September 2023, which was secured by the Company’s cash totaling RMB20.7 million (approximately $3.0 million) (Note 2). |  |  |  |  |
Suzhou Zhengyuanwei Needle Ce Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan agreement description |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (d)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 March 31, 2023, loan amount of RMB0.5 million ($0.1 million) remained outstanding. |  |  |

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