iPhone 6 or 6s battery life not what it used to be? This $21 case will double it
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Amazon has promos on iPhone 6/6s and 5/5s battery cases - GSMArena blog
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Apple brand battery cases for the iPhone 6/6s and iPhone 7 are discounted on Amazon
High Capacity Longlife 1715mAh iPhone 6s Internal Battery Replacement Kit OEM Brand New 0 Cycle With Battery Adhesive,Instructions and Tools Kits for iPhone 6s - Walmart.com
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