3.0V Button Battery, VL621/1025/VL1216, VL1220, VL1225, VL1616, VL1620, VL1632, VL2012/2025 Models Nominal voltage: 3.0VButton-cellNominal capacity: 40mAhStandard charge/discharge current: 0.5mACharge/discharge cycle characteristics: Discharging depth of 10%: 500 timesDischarging depth of 20%: 300 timesTemperature range: -20 to 60 degrees CelsiusDimensions: Diameter: 20mmHeight: 0.3 to 3.2mm, d: 17.5mmWeight: ≥2.7gVarious types with different capacity and sizes are availableModel numbers available: VL621, VL1025, VL1216, VL1220, VL1225, VL1616, VL1620, VL1632, VL2012 and VL2025

Button-cell Battery