External Battery Charger for Iphone 4(2300mAh) Hot Product!! Real Capacity: 2300mAh Charge time: 4 Hours Output current: 500 External Battery for ... Blue, Red, White, Pink and Black External Battery for Iphone 4* Battery with protecting jacket, solved the problem of signal ... step with iTunes ;* With intelligent switches, extending built-in battery life and more safe;* Accurately show the power, the ...