1900mAh built-in battery for iPhone 3G

1900mAh built-in battery for iPhone 3G Function Description: Our FC5 is an incase Power Slider: By far, the Power Slider had the best design. The three-part design completely encases the iPhone, increasing the dimension only slightly.It's a very natural look, and most people wouldn't even realize it's also a battery pack. It's pretty easy to put on and take off, and feels like a second skin in the end without impeding the camera.Real 1900mAh built-in battery, double the time you have to Rock, Talk, Surf and Send with your iPhone 3G or 3G S. Also with built-in USB cable for data transmission at your very convenience.