AE Energy Lithium Polymer rechargeable backup battery: AE46PB55V including one pcs 6.5V charger and the cable with USB port. Input Coltage range: 5.00-6.50VDC 400HZ; Rating Output voltage: 5.5V. Normal capacity: 4600mAH. Life cycle: 500cycle; Charging time: 5-12Hours It is used for the mobile phone, MP3, MP4and other portable electric devices After fully charging our backup battery, please use the suited cable to connect our backup battery output port and your devices port such as Mobile Phone, Mp3, Mp4, Camera etc. If you have any interest, please feel free to contact us. We will give you more information.