Battery drain in iOS 14.4

Hi I have an iPhone 11 Pro. The battery started draining very fast after updating the OS to the latest version. It dropped from 90% to 20% in an hour just over an audio call. Is this a known bug? Can I rollback to iOS 14.3? Do you have any tips for fixing it? I already did the usual (restarting the phone), but that didn’t help. I want to emphasize the fact that the battery was fine before the update.

iPhone 11 Pro

Posted on Jan 31, 2021 10:19 PM

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Posted on Feb 18, 2021 4:09 AM

Is the 'exposure notifications' turned on, if so try turning them off and see if this makes any difference. I've suggested this before for users with iPhone SE but never get any feedback.


I did this with my own iPhone SE series 1 because battery drain went haywire after iOS 14.4 - this coincided with Apple's inclusion of covid tracking code (something to do with bluetooth always checking for possible contact proximities) with this update.


Anyway, after turning off the exposure notifications, the battery drain became much more settled and has been consistent with usage for some 3 months now. There's no harm in trying this out on a short-term basis and it just might prove to be the answer.

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Feb 18, 2021 4:09 AM in response to siddey

Is the 'exposure notifications' turned on, if so try turning them off and see if this makes any difference. I've suggested this before for users with iPhone SE but never get any feedback.


I did this with my own iPhone SE series 1 because battery drain went haywire after iOS 14.4 - this coincided with Apple's inclusion of covid tracking code (something to do with bluetooth always checking for possible contact proximities) with this update.


Anyway, after turning off the exposure notifications, the battery drain became much more settled and has been consistent with usage for some 3 months now. There's no harm in trying this out on a short-term basis and it just might prove to be the answer.

Feb 9, 2021 5:53 PM in response to siddey

Hi Siddey:


I've had the same issue after upgrading to iOS 14.1 and then iOS 14.4. A painful, but effective fix for me, is to do the following:


  1. Backup the iPhone using iTunes
  2. Erase the phone (entirely)
  3. Restore the iPhone from iTunes


Note: Save your photos before doing this.


I guess there's some "gremlin" in the iOS upgrade that causes the drain, even for normal apps like messaging, etc. I have an iPhone 8 and the battery health is decent.


Good luck and I hope this works for you.


Drew



Mar 3, 2021 8:22 AM in response to RKKR12

If you backed up the phone before updating, I suggest you restore to that previous incarnation. Quite a few of the higher level community specialists will suggest it’s a battery fault - as they have previously. When my iPhone started playing up following iOS 14.4 update I turned location tracking, background app refresh and exposure notification settings all to OFF and although not what I consider to be a long term fix, it has improved battery drain to almost pre-update levels!

Good luck

Feb 18, 2021 11:05 AM in response to iopowell

You write “Remember some apps are power hungry and do background refresh, possibly turn off that feature for those apps too!”

Remember nothing changed on my phone prior or after iOS 14.4. .  No settings changed or apps added. Just 14.4 installed and now massive battery loss. 

Of courses I could put my brightness to 1 not use any features to try to help whatever broke in the iOS update but that is a very poor solution to a bad update don’t you think?

FYI if you do any research on the net you will see it’s not just you write "destroyed the battery management system of smaller sized iPhones". I have read the same issues with  SE through iPhone 11 Pro.

Feb 18, 2021 11:25 AM in response to se4ever

Yes, you're correct about the apps before the iOS14.4 update not affecting the battery rundown as much, it's only after the update that I went through all the possibilities and that smaller iPhone batteries were mostly affected. I have noted that other more recent larger phones are experiencing rapid decline in battery capability also, which is why I believe the problem is Apple's coding and that they don't appear to be inclined to fix this issue or admit that it has anything to do with this included traceability!

Mar 27, 2021 2:39 AM in response to MarifaMarifa

Whatever Apple has done to the management system appears to have aged batteries irreversibly. Since the latest iOS 14.2 updates and turning off optimised charging mode in settings my series 1 SE’s battery drain is much better and if I don’t use the phone drops by only a few percentage points over the course of a day!

I doubt very much that battery drain will ever be as it was prior to iOS 14, the damage won’t be undone in entirety!

Good luck

Feb 1, 2021 5:02 PM in response to MrBill3

Hi,


Thanks for the suggestions. As you see, I am practically running on 1% battery for straight 10hours now. So there is a bug in the battery monitoring process, as opposed to the actual battery life.


I accidentally marked this as solved. Is it possible to revert it back?


Also can you please point me to the other discussions on the same topic?


Thanks

Feb 19, 2021 7:52 AM in response to iopowell

Thanks for bringing up this issue.


I have iPhone7 and noticed SIGNIFICANT degradation in battery life when iOS 14.4 came out about a month ago. This was a ‘new’ battery that was replaced back in Oct.


Phone will show 100% charge for 20-30 min, then shutdown. Then once restart, it shows 10%.


Apple, you have to take responsibility for some flaw in iOS 14.4 and fix this, please.


anyone else having these types of problems?




Feb 21, 2021 2:03 AM in response to iopowell

Thanks for the tip. Exposure Notifications might well be the culprit. I noticed that my iPhone X battery would drain in the middle of the night (like 4:00 AM) even when the battery level was 60% in the evening. Those drain times look correlated with the times that Exposure Notifications was active; Exposure Notifications is active every 4 hours.


(BTW People are also reporting issues with iPad. I cannot confirm that. My iPad Pro 10.5" is having no battery issues with iPadOS 14.4.)

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Battery drain in iOS 14.4

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