Battery health increased from 85% to 88% with the battery recalibration tool in the iOS 14.5.1 battery life has been very good 👍 for my 19 month old iphone 11, quite happy with this update. : r/iPhone11
SOLVED: iPhone 7 shows 85% battery health after battery replacement? - iPhone 7 - iFixit
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iPhone 6s 32go 85% Battery for sale in Co. Dublin for €80 on DoneDeal