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I got this phone this last Christmas. These past two weeks it started to die at around 15%. Then it started to stay at 100% most of the day and die at around 30% for a couple of days. Now today, it did the samething but died at 50%. The battery life is ok, but I need to know how to fix it to get it to tell me the right percentage of my battery!! Please help!!
iPhone 4S, iOS 5.0.1
You need to calibrate your battery. Charge it to full power, then use it (without plugging it in at all) until it completely dies. Let it sit for a few hours and then charge it again until it reaches full power. Don't unplug while it's charging. This should get the indicator back into gear.
Why does my iPhone 4 die at 50%?
