theSmily

Q: iOS 10 battery drain on iPhone 6s

iOS 10 downloaded and installed fast in my iPhone 6s 64gb model.

 

The new OS works great and fast with all apps, actually faster than before. Only exception is Mail app which takes 5 times or longer to update/refresh my inboxes.

 

Though the issue is that the battery is draining about 20% more than it did on iOS 9.3 before I upgraded to iOS 10.

I barely use the Background Refresh for any apps, only 3 apps were opened there.

 

Before the upgrade, in a typical usage of few phone calls, email checking once an hour, and 15 minutes of web browsing, at end of the day I would have 60% battery.

 

After the upgrade, with same usage, I now have 30% free battery at end of the day under same use conditions… I even removed all apps from Background refresh, and lowered the brightness settings, which made no difference whatsoever.

 

That is worrying, and read in several blogs online people reporting same issue post iOS 10 upgrade on their iPhone 6s or 6 devices. In them, many would say to not be alarmed because iOS is still re-indexing the data in the device, but now after almost 2 weeks of usage, I still see the reduced battery efficiency not only on my iPhone 6s, but on my parents’ iPhone 6 Plus and iPhone 6s Plus.

 

I tried also to drain the battery completely then fully charge to “recalibrate” it, but no difference was noticed.

iPhone 6s, iOS 10

Posted on Sep 22, 2016 4:41 PM

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Q: iOS 10 battery drain on iPhone 6s

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  • by aruky,

    aruky aruky Sep 28, 2016 11:35 PM in response to theSmily
    Level 1 (9 points)
    Apple TV
    Sep 28, 2016 11:35 PM in response to theSmily

    Hi I have the same issue,

    in the "battery" settings I noticed that Photos App was/is using ca 30% on background activities. I have a large photos library and synching with iCloud enabled so I figured it might go away after upload was complete but so far no luck.

    Some have suggested it might be a corrupted file in the library so I'm trying to find out about that.

    Have you checked your battery ins in the settings-> battery section?

  • by Backwater11,

    Backwater11 Backwater11 Oct 6, 2016 1:47 PM in response to aruky
    Level 1 (4 points)
    Oct 6, 2016 1:47 PM in response to aruky

    I'm having the exact same issue!  It constantly says "1,596 items to upload" (or some similar number), but then when I check iCloud--they all there!  In the meantime, the battery quotes like 30% usage while operating in the background. 

    I just turned the upload library to the cloud feature off, since they all seen to be there, and upload new ones on.  Any luck on your end?

  • by aruky,

    aruky aruky Oct 13, 2016 7:23 AM in response to Backwater11
    Level 1 (9 points)
    Apple TV
    Oct 13, 2016 7:23 AM in response to Backwater11

    Well, I did the restore to factory defaults routine, but then restored from back up (starting completely over seemed too tedious) and loh and behold after a couple of days of waiting and observing background activity of photos is back to normal (low single digits). Battery life is back to normal albeit not great levels.