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Segment Reporting (Tables)
 12 Months Ended
Sep. 30, 2020
Segment Reporting [Abstract]  
Schedule of each reportable segment’s revenue and income
   Year ended September 30, 2018 
   Battery cells and packs segment   Rental segment   E-bicycle sales segment   Total segments   Unallocated   Consolidated 
Revenues from external customers  $550,381   $2,641,179   $-   $3,191,560   $-   $3,191,560 
Depreciation and amortization  $-   $(598,498)  $-   $(598,498)  $(547)  $(599,045)
Segment income before tax  $105,045   $1,390,232   $-   $1,495,277   $(371,600)  $1,123,677 
Segment gross profit margin   16%   54%   -    48%   -    48%
   Year ended September 30, 2019 
   Battery cells and packs segment   Rental segment   E-bicycle sales
segment		   Total segments   Unallocated   Consolidated 
Revenues from external customers  $1,253,569   $3,823,058   $104,080   $5,180,707   $13,552   $5,194,259 
Depreciation and amortization  $-   $(940,434)  $(424)  $(940,858)  $(3,178)  $(944,036)
Segment income before tax  $1,119,568   $1,612,434   $32,994   $2,764,996   $(111,499)  $2,653,497 
Segment gross profit margin   96%   52%   (2)%   61%   39%   61%
   Year ended September 30, 2020 
   Battery cells and packs segment   Rental segment   E-bicycle sales segment   Total segments   Unallocated   Consolidated 
Revenues from external customers  $3,148,156   $1,595,226   $11,165,290   $15,908,672   $929,836   $16,838,508 
Depreciation and amortization  $(2,318)  $(933,176)  $(82,896)  $(1,018,390)  $(466)  $(1,018,856)
Segment income (loss) before tax  $251,732   $(76,292)  $169,452   $344,892   $29,178   $374,070 
Segment gross profit margin   15%   15%   9%   11%   10%   11%
Schedule of reconciliation from reportable segment income
   For the years ended
September 30,		 
   2018   2019   2020 
Net revenues            
Total revenues from reportable segments  $3,191,560   $5,180,707   $15,908,672 
Other revenues   -    13,552    929,836 
Consolidated net revenues  $3,191,560   $5,194,259   $16,838,508 
                
Income or loss               
Total operating income (loss) for reportable segments  $1,475,016   $2,621,118   $(9,185)
Other income for reportable segments   20,261    143,878    354,077 
Total income for reportable segments   1,495,277    2,764,996    344,892 
                
Unallocated amounts:               
Other corporate (expense) gain   (371,600)   (111,499)   29,178 
Consolidated income from continuing operations before income taxes  $1,123,677   $2,653,497   $374,070