Backup Battery Capacity: 1900 mAh Dimension:113x66x21mm Output voltage: DC 5.0 V Output current: 700 mA max Backup Battery for iPhone 3G/3GSCapacity: 1900 mAh Dimension:113x66x21mmOutput voltage: DC 5.0 VOutput current: 700 mA maxPls ask us to get the pricelist,have more model! Backup battery for iPhone 3G/3GS