Battery charger case for Iphone 4/4s 1.1900mah 2.rechargeable case 3.for Iphone 4/4s 4.supply power The 1900mah External Battery Charger Case for All New iPhone 4G . This item is designed to more than double the time you can Rock, Talk, Surf and Send with your iPhone 4. Simply plug this into your iPhone 4 to charge the battery when on the move. The Battery Case is specially designed for iPhone 4 ...
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