Molicel INR-18650-M35A, 3.6 Volt 3500mAh Lithium-Ion Cell
Understanding the 18650 Battery: Everything You Need to Know
Battery test-review 18650 summary
18650 lithium-ion battery
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? :
Lifepo4 18650 3.2v 1800mah Rechargeable Battery Cell Brand New Long Cycle Life For Power Tool Home Appliance Solar System - Rechargeable Batteries - AliExpress