Rechargeable battery, li-ion battery for flash torch 18650-3.7-2000mAh Warranty 12months CE,ROHS,UL,ISO Battery Manufacturer ApplicationFlash light/torch, ... circuit(PCM) is built into the battery to ensure that the battery will not be overcharged or over ... potentially dangerous activity with the lithium batteries. ModelLi-ion battery 18650-3.7-2000, RD-1PNominal Capacity2000mAhNominal Voltage3 ...