... system, remote control, electronic dictionary , MP4, digital cameras, all kinds of electronics standby power, telecommunication, digital electronics, IT,etc.Product features:1 ... with high qualityProduct specification:1. Voltage: 3V2. Nominal Capacity: 45mAh3. Weight:2.0g4. Dimension: 20 mm x 2.0 mm (D ... . Perform temperature: -20 degree to 60 degree ML2020 3V RECHARGEABLE BATTEY