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Kendo

macrumors 68020
Original poster
Apr 4, 2011
2,363
922
I average 10 hours of battery life on my iPhone 6 and this is with heavy web browsing, gaming, and video watching. The only issue is that 2 days in a row, my battery went down by 15% overnight. What could be causing this issue? This happened ever since iOS 8 because I never had this problem on my iPhone 5 with iOS 7. I would lose maybe 3% tops in sleep mode overnihgt.
 
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