ICS 502030
Specifications:
Charging voltage: 4.2V
Over-charge protection voltage: 4.3V
Nominal voltage: 3.7V
Minimum capacity (0.5C): 240mAh at 0.5C discharge
Nominal capacity: 250mAh at 0.5C discharge
Charge current: standard charge at 0.5C and rapid charge at 1.0C
Standard charging method: 0.5C (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to ≤0.05C
Charging time: standard charge needs 3.0 hours and rapid charge needs 2 hours
Charging current: 1C (maximum)
Discharge current: 2C (maximum)
Discharge cut-off voltage: 3.0V
Operating temperature:
  Charging: 0 to 45℃
  Discharging: -10 to 45℃
 Storage temperature: -10 to +45℃
Cell weight: 4.5g
Cell dimensions:
  Length: 30mm (not including tabs)
  Width: 20mm
  Thickness: 5.0mm