Descipfion:
There are two parts with Mobile Power, very easy to assemble and use; fashionable design, It integrated with iphone as a whole, protect your iphone so carefully! You can change the battery with a new one which is so convenient! The built-in cable can make your iphone connect with computer anytime.
Unique design of changeable battery, which can make you change the iphone battery as normal mobile phone, free you out of this trouble. The backup battery own double battery as iphone original battery.With our mobile power, you can enjoy more

Standby time: 300 hours;
Talking time:  5 hours; 
MP3 play time: 25 hours;
Video time:  8 hours;
3G game: 5 hours;
WI-Fi time:  6hours
◆3-in-1 design, protective cover, backup battery and USB data transmission functions.
◆Changeable Mobile Power rechargeable battery.
◆High capacity battery increases working time between charges.
◆ Built-in USB cable for data transmission to PC.
◆ Fashionable design that integrates well with the iPhone3G.
◆ Smart chip technology that prevents over charging, over discharge and short circuits.