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![Apple MFi Certified] PowerFlow iPhone 4/4S Battery Case (AP101) - Skiva](https://cdn.shopify.com/s/files/1/1013/9621/products/ap101_10.jpeg?v=1460623793 "Apple MFi Certified] PowerFlow iPhone 4/4S Battery Case (AP101) - Skiva")
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mophie juice pack plus Battery Pack for iPhone 4 & 4S (Black)
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Mophie Outdoor Edition Juice Pack Plus iPhone 4S Battery Case | Gadgetsin
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iCover iPhone 4/4S Rubberized Protective 1900mAh Battery Case - Black | BuyDig.com
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iPhone 4S Battery Life Problems Befuddle Apple Engineers, Owners | HuffPost Impact
Apple iPhone 4 - 4S Battery - Extended Piggy Back (Black)
