eBay, via BuyDig, is offering an uNu Ecopak iPhone 5 snap-on case w/ detachable extended battery for only $29 with free shipping. This is easily one of the best prices we’ve seen on a battery backup case for iPhone 5, not to mention it comes in several colors and looks good.
Introducing the newest generation of eco-friendly power for the iPhone 5, the uNuEcopak Snap-On Protective Case & Detachable Extended Battery is the essence of “green” engineering concepts and efficient power design. This vivid iPhone 5 battery case offers 360 degree protection plus the ability to attach and detach an external 2500mAh battery
that more than doubles the power of the iPhone 5. And, manufactured with a USB port built into the battery case itself, the EcopakiPhone 5 Battery Case allows for universal sharing between almost any USB powered device.