New Trent Super-Case 3G 3Gs iPhone External Backup Battery Juice Case 5000mAh IMP550 Enjoy more than 3 extra charges for 3Gs 3G 2G iPhone Huge Capacity 5000mAh the largest iphone battery case in the market Compatible with 3Gs 3G 2G iPhone, plugin-to-go one piece design Ultra light weight 130g, dimensions: 3.9″x2.2″x0.8″, no extra USB cable [...]