DIY: How to revive a dead 18650 (or any) Li-ion battery cell - YouTube
lipo - Any reasons why my 18650s go very hot when I charge them? - Electrical Engineering Stack Exchange
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DIY: How to revive a dead 18650 (or any) Li-ion battery cell - YouTube
Im having trouble finding a genuine replacement for this speaker battery. Would it be possible to buy a normal 18650 battery (same specs) and solder the pcb circuit onto the new battery? :