It started today and happened twice, my iPhone turns itself off even battery has 15%-17% charge, I can't open it, empty battery sign appears when I plug it in to charge, it begins to charge from 15%-17%, I couldn't find the reason, it has the latest iOS update, what could it be?

2 Answers 2


The clue is that it begins to charge at 15% or so.. you have some bad cells in the battery, so they are not considered for charging, but are part of the 100% the battery should have.

Take it in to Apple and have them look at it!

  • thanks @dave, so it is hardware problem, this isn't good because i got my iPhone from out of my country and there is no Apple store in my country, does this bad cell increase?
    – washaq
    Jun 17, 2013 at 5:44

From what it sounds your battery is damaged, you should take your iPhone to a Apple Authorized Service center for further investigation.

Did this behaviour occur when you were outside, in cold? My 6S has some problems if I use it lightly in the cold, it shuts down when it's under 10% but I'm able to turn it back on if I force it two times.

You could try to charge it at 100% then listen to music, play some games, browse on mobile data, etc. and see if it does the same thing or it just goes to 1-2% (charge it, don't let it go 0% !).

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