iOS 10 on iPhone 6 Battery always shows 100%

Hi everyone, I updated my Iphone 6 (sprint) to iOS10 and since then my batter percentage is always 100%. The phone will die, I will charge it, it will go back to 100% and then never shows any lower number besides 100 until it dies. This happened exactly when I upgraded to iOS10 and the battery life/ percentage was fine prior. Any ideas or tips? Are others having this issue?

iPhone 6, iOS 10

Posted on Sep 22, 2016 4:36 PM

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36 replies

Feb 15, 2017 7:24 AM in response to bchall5

Having this same problem on my daughters phone. Went into recovery mode and re-installed software but still no change. Battery always at 100%, random reboots, etc. Get with the program Apple ano fix this. Clearly this is not a small issue as I've been reading of numerous people having the problem and talked to others. It's been this way on 10.1.1, 10.2.1 and I even tried the beta 10.3 and still same issue.

Apr 2, 2017 9:37 AM in response to Amsbht

Hi guys. I had the same issue with my iPhone 6 (bought in Las Vagas, being used in Brazil, iOS 10.3.2 Beta). Battery stuck on 100% till it died and returned to 100% as soon as I plugged the charger in it. Well, it might sound crazy, but it worked for me. I turned off the "Set Automatically" option (Settings > General > Date & Time > Set Automatically). I read this tip on Apple's Brazilian discussion forum and it was helpful. Hope it work for yous.

Aug 31, 2017 9:29 AM in response to bchall5

I encountered the same problem just a few days ago with my iPhone 6 and iOS 10.3.3. It kind of hit without warning, and the only action I took that I can relate to the "always 100%" is changing the screen brightness. Otherwise I was using the phone as usual.


I tried the time thing (even though I was already automatically setting my time), restarting, pretty much everything short of flinging it out the window.


What fixed my phone was a tip I'd seen somewhere that said:

1) Put phone in Low Power Mode

2) Let it die

3) Plug it in to the charger and leave it plugged in for about a minute after the phone restarts

4) Let it die

5) Plug it in to the charger again, make sure it is still in Low Power Mode after it reboots and let it charge overnight


Like magic! My phone is now working as designed, with the battery indicator dropping normally!


Your mileage may differ. Void where prohibited by law. Try it, you may like it!

Oct 23, 2016 7:09 PM in response to raymond73

Force restart hasn't worked for me. I tried several regular restarts and force restarts, nothing has changed. The battery is still stuck at 100% until it dies. I even downloaded some apps that supposedly monitor the condition of the battery and it's always perfect with a full charge...until it dies.


On the plus side I seem to be getting most of the life I used to get before iOS 10, I just have no idea what the charge state of my device is.

Oct 23, 2016 7:27 PM in response to bchall5

If restarting doesn't work you will need to reset the settings. You will NOT lose any data. Just the settings you may have made to things like having predictive text working (or not working). Go to:

Settings > Reset > Reset all settings (be careful not to hit erase all content). It will ask for your password and then bring up a screen asking if you are sure. Follow prompts until it restarts itself and you should be good to go.

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iOS 10 on iPhone 6 Battery always shows 100%

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