Iphone power staion/power pack/battery
Maximum capacity: 1300mA
Talk Time: up to additional 6 hours
Video playback: up to additional 8 hours
Audio playback: up to additional 28 hours
Internet use: up to additional 7 hours
Standby Time: up to additional 360 hours
Smart circuitry decides power charging/supplying mode according to iphone power level.
Build-in mini-USB port for battery charging. USB charging cable in package.
Smart Overcharge-protection circuit design
Output voltage: 5v
Output current: 500mA
authentic mobile accessories.anuthentic brand-EiX
High-Performance Rechargeable Battery Power Pack for Apple iPhone 3G/3GS/4G