NEW Rechargeable battery LIR2032 3.6V Li-ion Lithium Ion Button Battery Battery Type: LIR2032 Rated voltage: 3.6-4.2V Nominal capacity: 40/50mah Battery Terminals:PCB Pin Cycle life: 500 cycles can be charged and discharged. Applications: Mainly used in control panels, wireless Bluetooth headsets, hand-held flashlights, emergency lights, watches only, smart meters and remote key fobs. Standard charge and discharge: At a constant temperature of 25±2°C, the battery is charged at a constant current of 0.2CmA to 4.2V, and then the battery is charged at a constant voltage until the charging current is less than or equal to 0.04CmA. Charging is stopped, and the battery is allowed to stand for 10 minutes, and then discharged at 0.2CmA. To 2.75V. replace CR2032 battery.
