PowerBot TNT PB2200-i5 Snap-On 2200mah Battery Case for iPhone5 by EyeCandis (Black)
EyeCandis 2200mAh iBC-2200 Battery Case extend the iPhone 5 standby time up to 300 hours and talk time up to 7 hours on 3G  or up to 16 hours on 2G band. It allows user to enjoy extended talk, movie and music play time without interruptions.