LIR2032 main parameters:

Capacity: 40 mah

Rated voltage 3.6v

cut-off voltage 2.75v

internal resistance <600 ohm

charging current 0.5C mA

maximum charging current 1C mA

charging voltage 4.2v

maximum charging voltage 4.23v

charging time about 3h

quick charge time 2h

standard discharge current 0.5 CmA

maximum discharge current 2 CmA

weight 2.8g

Charging temperature 0～+45 °C

Discharge temperature -20～+60 °C

Button batteries must be kept away from children to avoid injury.