... Adavantage:10W USB, cellphone adaptor Rechargeable Battery Pack 5V 1500mAh Features: 1.External lithium battery pack for PSP,iPod, MP3,MP4,Mobile ... and other devices which requrie 5V power supply2.Battery capacity :25Wh3 ... )13.Battery weight :180gFunctions :Compatible for PSP,iPod, MP3,MP4,Mobile and other devices which requrie 5~12V power ...