IOS-5 battery power drain issue

Did somebody notice a major power drain issue after iOS5 upgrade on iPhone4? Last night at midnight, it was ~90% charged. In the morning, it was 37% charged. By noon, it was dead. I didn't make even 1 call during this time. Connected to Wi-Fi at home and strong 3G signal. Bluetooth is off, location services are off, all that stuff. The same phone's battery would last for 40 hours with my normal usage with IOS 4.3.5. Anybody knows if any specific feature of iOS5 is causing this battery drain?

iPhone 4, iOS 5

Posted on Oct 14, 2011 1:16 PM

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225 replies

Nov 11, 2011 3:02 AM in response to cleanman13

Mine was a general answer to the general topic, not specifically in response to your last post: many users have described their own predicament, usually widely differing in kinds and shapes. What I meant was, I too was impacted by this quickly draining battery syndrome since upgrading to iOS 5, and with this 5.0.1 update, I find my battery holding a lot longer, all other settings being the same.


Hence the "so far, so good" at the end my post.

Nov 11, 2011 3:07 AM in response to RakeshPDX

Hi to all,


same here... still no improvement with the battery...

Just did a full charging cycle.... wrote some msgs to friends.... 94% left.. -_-

effective usage about 15mins, but the "usage" section says 1h29mins (and 1h47mins standby)...


Seems like the problems haven't been solved yet


I am completely perplexed


😟

Nov 11, 2011 3:20 AM in response to RakeshPDX

I was having same problem with previous version of IOS and hoped that latest release would solve but no joy.


I can stop the power drain and the overly hot phone by simply turning off the Reminders/Bookmarks/Notes synch with iCloud. I have everything else turned on. Backup to iCloud etc.


I am not sure if Notes and Bookmarks are to blame but I do know that in my case, Reminders are a no no.


Will wait for a complete solution.


😕

Nov 11, 2011 5:48 AM in response to RakeshPDX

Installed iOS 5.0.1 on 4S and 3GS yesterday. 4S was charging the whole night so I do not know yet if this helps. But I left 3GS with 90% of battery in the evening. This morning it was DEAD! 3GS with 5.0.0 was usually surviving 2-3 days on a single charge, with 5.0.1 it dies overnight. Now I am charging it and waiting to come back to life - it has been charging for 20 minutes and it still says battery is empty.

Nov 11, 2011 6:10 AM in response to RakeshPDX

Thank you everyone for your suggestions....EVERYTHING is turned off on this phone. The new update(fix?) didn't help either. This all started with the i0S 5. What is the sense of having an iphone if u can't use it to it's potential 😟. When my contract is up I'm dumping this phone. There are many out there that are more dependable and work much better.

I'm just getting tired of playing with this thing, constantly going to the ATT store for help, lousy upgrades, shutting things down to save my battery, bad reception, and I don't think there is a slower phone...time to move on. In the mean time I guess I'm stuck with it😠

Nov 11, 2011 7:13 AM in response to reds15

Shutting down functions will NOT fix the problem. The only way to fix it is to find the ONE app that is causing the problem. Alternatively, restore the phone as new, do not reload the backup, do not add any email accounts or apps, and check the battery life. If it is still bad you have a hardware problem. If it is OK add apps back a few at a time.

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IOS-5 battery power drain issue

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