Don’t want to add too much bulk on your, but need longer standby time for the iOS device? Take a look at iKit’s NuCharge with interchangeable , maybe it can meet your requirements.
The NuCharge is a practicaldesigned for iPhone 5. As we can see from the images, the iPhone 5 case features sleek slim design, and consists of three parts including a hardshell plastic case, an interchangeable backup battery, and an extra aluminum back cover. The backup battery features 1900mAh capacity in order to offer you up to 8 hours of talk time, and the integral iPhone stand holds your iPhone 5 in landscape viewing mode, moreover, when not in use, the backup battery can be removed from the form-fitting case, and the extra aluminum cover makes the iPhone 5 case look more stylish. Apart from that, the custom cutouts allow you access to all buttons and functions of your iPhone 5.
At present the team of iKit NuCharge iPhone 5 case is raising fund at Kickstarter. Pledging $59 will let you own the battery case. If you’re interested, jump to Kickstarter official site for more details or check out the following demo video first.