Mobile backup charger,
Verified Purchase(What is this?)
This review is from: PowerBank 12000mAh Portable Power Supply for iPad, iPad 2/3, iPhone 5, iPhone 4, iPhone 4S, iPod, Blackberry, HTC, Android, Samsung and many more (Electronics)
Just a quick observation in that it took hours to charge, maybe 16? Havn't actually used it much but that's the idea I think.