Hi all,

Is anyone else having trouble with their battery calibration under iOS 7? 

My iPhone 4S has been shutting off when showing relatively large (15%, 6%, 9%) 
amounts charge. I tried calibrating it by

  letting it run out of juice so it shut off
  charging uninterrupted to 100%
  force restarting the phone 

This worked for about two days. This morning my alarm didn't go off because the 
phone was dead. When I plugged it in, it showed 15% just after starting up. 
So.... I charged it fully and forced a restart. Now it has been showing 100% 
for the last 20 minutes.

So... it appears that there is something wrong with how it is reading how much 
juice is in the battery.

Anyone have any hints for what might work better than the above not-quite-right 
calibration? 

Bill

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