v3.26.1
Segment Reporting - Schedule of Reconciliation from Reportable Segment Income (Details) - USD ($)
 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting - Schedule of Reconciliation from Reportable Segment Income (Details) [Line Items]    
Revenue from external customers $ 6,363,076 $ 6,565,367
Segment loss before tax and share of loss of equity method investments $ (3,669,056) (912,941)
Segment loss before tax and share of loss of equity method investments   $ (912,941)
Segment gross profit margin 6.00% 10.20%
Battery cells, packs and solar cells segment [Member]    
Segment Reporting - Schedule of Reconciliation from Reportable Segment Income (Details) [Line Items]    
Revenue from external customers $ 5,258,770 $ 5,518,183
Segment loss before tax and share of loss of equity method investments $ (1,310,287)  
Segment loss before tax and share of loss of equity method investments   $ (88,207)
Segment gross profit margin 1.90% 4.50%
Electronic control system sales segment [Member]    
Segment Reporting - Schedule of Reconciliation from Reportable Segment Income (Details) [Line Items]    
Revenue from external customers $ 647,498 $ 636,356
Segment loss before tax and share of loss of equity method investments $ (32,194)  
Segment loss before tax and share of loss of equity method investments   $ (95,106)
Segment gross profit margin 21.80% 41.70%
Others [Member]    
Segment Reporting - Schedule of Reconciliation from Reportable Segment Income (Details) [Line Items]    
Revenue from external customers $ 456,808 $ 410,828
Segment loss before tax and share of loss of equity method investments $ (2,326,575)  
Segment loss before tax and share of loss of equity method investments   $ (729,628)
Segment gross profit margin 31.30% 38.90%