Our offered range of 3.7v rechargeable lithium polymer battery is available with following details:- nominal voltage: 3.7vrated capacity: 250mahcycle life: greater than or equal to 500 timescharging voltage: 4.2vmaximum discharging current: 2c madischarging end voltage: 2.75vcharging temperature: 0 to 45 degrees celsiusdischarging temperature: -20 to 60 degrees celsiusstorage temperature: -20 to 45 degrees celsiusdimension: thickness: 5.0mm width: 20mm; height: 30mmthickness could be adjusted while width and height keep the same application: mobile phones, digital devices, aircraft components, toys, telecommunication system.