Battery capacity not consistent with endurance
My iPhone 5s is a year and five months today. The battery capacity reads 1400, and at design it was 1550. I believe that should mean it still has quite some life left in it, but alas it does not last three hours with my normal usage which mainly consists of chatting.
Is it time to replace the battery or do I have a possible underlying problem I need to rectify first?
Resetting settings did not help at all. When fully charged and just in standby, it would lose one percent every hour or two, depending on the ambient temperature. Soon as I pick it up and start using it, I lose 10% in 5 minutes. This one time I charged fully before going to bed; woke up to a dead phone. This other time, it lost 50% overnight without being used.
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