My iPhone 5 has been shutting down earlier than normal at lower battery levels.
First, it started to shut down around 10%, then it increased to 15%, 20%, and finally 25%. I used to be able to run it down to 1%.
The battery indicator also jumps down sometimes by around 10-15%.
I have only had this problem ever since updating to iOS 7.0.4 (from 7.0.3). I have done multiple iTunes restores since I updated, but the problem still has not been fixed.
Is there a fix for it?