3.0V Button Battery, VL2050, VL2320, VL2325, VL2354, VL2430, VL2450 and VL2477 Models ... of 10%: 800 timesDischarging depth of 20%: 500 timesTemperature range: -20 to 60 degrees CelsiusTemperature range: -20 to 60 degrees CelsiusDiameter: 23mmHeight: 0.3 to ... , VL2320, VL2325, VL2354, VL2430, VL2450 and VL2477 3.0 V Button-cell battery