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Segment Reporting (Details) - Schedule of each reportable segment’s revenue and income - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Battery cells and packs segment [Member]      
Segment Reporting Information [Line Items]      
Revenues from external customers $ 4,288,366 $ 3,148,156 $ 1,253,569
Depreciation and amortization (804) (2,318)  
Segment income (loss) before tax $ 16,902 $ 251,731 $ 1,119,568
Segment gross profit margin 3.20% 15.00% 96.00%
E-bicycle sales segment [Member]      
Segment Reporting Information [Line Items]      
Revenues from external customers $ 18,232,537 $ 11,165,290 $ 104,080
Depreciation and amortization (139,501) (82,896) (424)
Segment income (loss) before tax $ (2,034,515) $ 169,452 $ 32,994
Segment gross profit margin 1.60% 9.00% (2.00%)
Subtotal from operating segments [Member]      
Segment Reporting Information [Line Items]      
Revenues from external customers $ 22,520,903 $ 14,313,446 $ 1,357,649
Depreciation and amortization (140,305) (85,214) (424)
Segment income (loss) before tax $ (2,017,613) $ 421,183 $ 1,152,562
Segment gross profit margin 1.90% 11.00% 87.00%
Other [Member]      
Segment Reporting Information [Line Items]      
Revenues from external customers $ 901,103 $ 929,836 $ 13,552
Depreciation and amortization (329,543) (466) (3,178)
Segment income (loss) before tax $ (1,779,032) $ 29,178 $ (111,499)
Segment gross profit margin (4.40%) 10.00% 39.00%
Consolidated [Member]      
Segment Reporting Information [Line Items]      
Revenues from external customers $ 23,422,006 $ 15,243,282 $ 1,371,201
Depreciation and amortization (469,848) (85,680) (3,602)
Segment income (loss) before tax $ (3,796,645) $ 450,361 $ 1,041,063
Segment gross profit margin 1.60% 11.00% 86.00%