Summary of Significant Accounting Policies - Schedule of Disaggregation of the Company’s Revenues from Continuing Operations (Details) - USD ($)	6 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Battery cells, packs and solar cells segment
Net revenues	$ 6,363,076	$ 6,565,367
Battery Cells and Packs Segment [Member]
Battery cells, packs and solar cells segment
Net revenues	5,258,770	5,518,183
Sales of self-manufactured battery cells, battery packs, e-bicycles, electronic control system and intelligent robots [Member]
Battery cells, packs and solar cells segment
Net revenues	647,498	636,356
Maintenance services [Member]
Battery cells, packs and solar cells segment
Net revenues	456,749	360,350
Other services [Member]
Battery cells, packs and solar cells segment
Net revenues	$ 59	$ 50,478

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details