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Iphone 5s battery drain IOS 8

After updating to IOS 8 my battery life has significantly decreased for the worse. After getting a good 8 hours of use with IOS 7 on a full charge i am now lucky to get about 4 hours before my battery dies with only moderate usage. Also my iPhone now gets extremely hot when i use for a period of about 5 minutes or more. Any advice would be greatly appreciated.

iPhone 5s, iOS 8

Posted on Sep 22, 2014 7:48 PM

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63 replies

Oct 16, 2014 11:57 AM in response to rfit05

Same problem on my 5S.

I went through all the usual settings for the system & apps and nothing seemed to help, until I disabled all the notifications in the Notification Center.

Not in the Settings, but you have to swipe down from the top of the screen to enter the actual Center and then scroll down to the bottom, where you can Edit what you want to be notified about.

Once I disabled all the notifications, this drain stopped and my battery performs properly again in a comparable fashion to the previous versions of iOS.


Hope this helps not only all of you, but the engineers of Apple to properly set this thing up in the next update for iOS 8.

Oct 16, 2014 1:41 PM in response to ortzis

I had the same problem with iOS 8.0.2. I seem to have solved it by doing two things:


First, I did a fresh reinstall, set up as new phone, and laboriously reinstalled all the apps I wanted and set them all up again.


This did not help at first, however! Battery still drained super fast. Then I noticed that all my apps had Background App Refresh turned on again. Note that turning off Background App Refresh does NOT work if you do it from the main screen of the Settings app. You have to go into General -> Background App Refresh and turn it off there.


I had done this before I did the reinstall and it did NOT work. But doing it after a fresh reinstall seems to work. Battery life back to normal.

Oct 19, 2014 4:41 PM in response to rfit05

Add two more the the list that don't last a day.

Mine and my daughters after upgrading our 5's to IOS8 have both experienced super fast battery drain.

I used to be able to cycle for 4 hours running Pandora linked to a Bluetooth speaker and uploading my Garmin link and Road ID and only lose about 40%.... now I can't even go two hours with the 3 programs running and my phone is dead.

I downloaded 7.2.11 ipsw to restore so I could go back and it seems to fail no matter what post, forum, blog I have read.

Oct 19, 2014 5:53 PM in response to hubzone37

I read on CNET.com that there should be a new Software Fix released tomorrow, Monday, October 20th. I pray that it is true. One thing that helped a teeny bit is it had defaulted to FETCH setting on mail/messages/data.. which means your phone is constantly searching for updates. I set that to manually. But battery still running out, SIRI doesnt connect to request for a good 60-90 sec lag, and apps crash.

Oct 20, 2014 12:16 AM in response to rfit05

Since the day iOS 8 was released I patiently waited to update my iphone 5S. It was working perfectly with no issues at all while it was on iOS 7.1.2 up until yesterday when I upgraded to iOS 8. I immediately started to notice that the iphone 5s battery is draining super fast even when I was not using the phone. Usually before the upgrade, my phone battery used to last the whole day (8-10 hours) but now I can clearly see battery is draining very quickly even when the phone is on sleep mode. Even the phone gets unusually heated while it's on charge. I kindly request apple to release an update very soon to resolve this issue. I was very confident about the performance of apple products and now I'm really disappointed. Please arrange a quick solution for all the iphone 5S users who upgraded to iOS. If not I'm pretty sure Apple would start losing customers due to heavy disappointments.

Oct 20, 2014 1:25 AM in response to rfit05

One more request to Apple to PLEASE fix this battery drainage issue. Every since upgrading to iOS 8.0 2 the phone gets very hot when you use is, and the battery dies within a couple of hours. Cannot even set alarm for the morning anymore because battery runs flat in the middle of the night !

Closed all apps via double-touch home button, Background App Refresh is off.

More issues since the upgrade :

* phone switches itself off and on (with the apple sign on a black background) several times per day even in the middle of a phone call

* mail-app cannot be used anymore : when you try to open it, it crashes straight back to the home screen.

* very slow response when using safari

VERY FRUSTRATING

Oct 20, 2014 7:49 AM in response to DARIFGSM

My iPhone 5 barely lasts 4 hours and if not charged, will die. Have tried disabling most notifications, as well as all battery saving tips from Apple and other sources and see no improvement. I also did a 'Reset All Settings'- no change. This is planned obsolescence that is part of most manufacturers' strategy, it appears. Hopefully, today's update will solve this, but I'm guessing an iPhone upgrade to a 6 or 6+ is built in to this debacle. The alternative is the Google World, which is even more fearsome.

Oct 20, 2014 9:03 AM in response to afuturo

Again, do these two steps:


Install iOS 8.0.2, and set up as new phone (do not restore from backup).


You have to reinstall all your apps and set them up again. A pain, but worth it to deal with this battery drain problem.


Go into Settings and find the General -> Background App Refresh option. Turn it off for most apps, except the few you really need to be able to refresh in the background.


Do NOT go into each individual app's settings to turn off background app refresh. This does NOT WORK.


Reboot.


This solved my battery drain problem.

Oct 21, 2014 7:43 AM in response to Michael Dautermann

Please see my answer, above. I also had battery drain problems with iOS 8 but following the steps above fixed it for me with 8.0.2 and it is still fixed with 8.1. I'll repeat it here:


First, make sure your phone is backed up and fully synced, including apps and contacts, etc.


Install iOS 8.1, but very important: SET UP AS NEW PHONE, do not restore from backup.


You have to reinstall all your apps (you can re-sync with iTunes to do this, you don't have to download them all one by one) and set them up again. A pain, but worth it to deal with this battery drain problem.


Go into Settings and find the General -> Background App Refresh option. Turn it off for most apps, except the few you really need to be able to refresh in the background. It appears that the iOS 8.0.x upgrade turns this on for ALL apps.


Also, for good measure, go to Notifications and turn off all notifications you do not need. But it is Background App Refresh that has the biggest impact in my experience.


Do NOT go into each individual app's settings to turn off background app refresh. This does NOT WORK (at least in 8.0.2, it might work in 8.1 now). You have to turn it off in the Background App Refresh menu inside General.


Reboot.


This solved my battery drain problem, and I suspect it will solve it for most people (though this 95% thing you report is strange and sounds different from what most people are experiencing).

Iphone 5s battery drain IOS 8

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