Nominal voltage: 3.7V Nominal capacity: 320mAh Cycle life: ≥ 500 times Maximum charging current: 320mA Maximum discharging current: 640mA Charging voltage: 4.2V Discharging end voltage: 2.75V Charging temperature: 0 to + 45 degrees C Discharging temperature: -20 to + 60 degrees C Storage temperature: -20 to + 45 degrees C Dimensions (L x W x H): 35 x 25 x 4.5mm Weight approximately: 6.0g Make the battery packs according to customer's voltages, capacities and dimensions request Can equip PCM, pack with wire and connector Can operate the case for the battery according to customer's request Can provide the matched charger Main application: Bluetooth headsets, camera, MP3/MP4, video DVD, PDA and Notebook