Battery Draining on my iPhone after recent iOS update

Well, i was waiting for a big update to solve the battery drain issue from iOS 17.4, but the new update x.x.1 make it worse, now my battery take only 5 hours on screen. On iOS 16 it was so different, my phone had something about 10 hours of screen, now its less than half.


i have an iPhone 12


[Re-Titled by Moderator]

iPhone 11, iOS 17

Posted on Mar 22, 2024 2:56 PM

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Posted on Apr 19, 2024 1:23 AM

I have finally found the reason for overheating and possibly also for unacceptable battery drain under 17.4.1 for my case (iPhone 13 Pro, 17.4.1). The culprit is "Require Attention for Face ID", "Attention-Aware Features" or perhaps both.


I have noticed that overheating always coincides with browsing time, comes from a specific spot in the back of the phone (roughly in the middle) and is not depending on the brightness level, on the connection type (wireless, LTE or 5G) or on the app (different web browsers, different news apps) in use.


One consequence of overheating was that, under 17.4.1, I reached max. 4-5 hours of browsing time (instead of about 10 hours) from a 100% charge and with 92% battery health (down from 98% since I have installed 17.4.1!)


Yesterday evening I came to the idea that the overheating might be caused by the iPhone continuously checking for attention before dimming the display ("Auto-Lock" is set to 30 seconds) because during screen-off times I had neither overheating nor significant battery drain.


As it turns out, switching off "Require Attention for Face ID" and "Attention-Aware Features" has completely solved the overheating problem.


Battery life also seems to be back to normal levels but I will have to check this through a few days of regular usage.


Hope this helps!

131 replies

Mar 25, 2024 7:54 AM in response to YudiYamawaki

iPhone 12, battery max capacity showing 85%. Battery usage by app showing the United airlines widget background activity with high usage. Removed all airline widgets, turned off background refresh on United, charged phone back to 80% (it had dropped from 100% to 60% in a little over an hour).


Have not noticed a temperature issue, but does seem to be charging slowly. No issues with this phone before the iOS update, and original battery in phone.

Mar 29, 2024 9:06 AM in response to YudiYamawaki

I have an iPhone SE 2020 (already a miserable battery life, but acceptable). After upgrading to iOS 17.4.1 my battery drain is so bad it almost makes my iPhone useless. I am NOT a power user. I just send some text messages now and then. This battery drain is happening while idle. I went to sleep with 48% battery (nothing running) and woke up to a dead phone. Before the update I could have something like 32% and wake up with 13%!


The problem is this 17.4/17.4.1 update, it's obvious to see with so many people having this problem on pretty much every model.


Right now as wrote this my iPhone was idle and went down 3% (writing this on my laptop). So I gave up and turned my iPhone off. I don't want this 17.4.1 update destroying the health of my battery!


Why can't they just admit there's a problem and let us know they are working on it? At least that would be some slight consolation.


Please Apple, I'm begging you, fix this ASAP!

Mar 30, 2024 10:31 AM in response to YudiYamawaki

iOS 17 is one of the worst iOS release ever.

This update destroyed battery life on my iPhone.

On iOS 16 I used to easily get 10-12h screen on time. I updated from iOS 16 to iOS 17.3 and suddenly I barely can get 6h screen on time.

That's literally half of what I used to get.

On an iPhone 13 Pro Max.

This is unacceptable and Apple needs to be held accountable for this. This is clearly intentional practice to upgrade to a new phone. My battery health is at 94% and it was at 95% on iOS 16, so no, it's not a battery health issue. It's apple and this update.


Oh, and apple deletes my comment. Looks like we can't even tell how disappointed we are here.

Apr 11, 2024 10:03 AM in response to llesieur99

Did my update this morning iOS 17.4.1 with iPhone 12 Pro. Went from 100% to 12% in 3 hours! Had no problem before the update. I will change my battery this afternoon with Apple and I’ll keep y’all updated.



Changing the battery is not going to bring you any benefit, I believe. According to the people I talked to this morning at the Apple store, one can only downgrade or hope that 17.5 will fix the battery drain issue. If you have "upgraded" to 17.4.1 just today you are probably able to go back to 17.4 without losing data.

Apr 21, 2024 7:36 PM in response to joyful1nh

Mine said the same thing, the United Airlines widget drained 76% of my power… I had charged my phone to 96% but it said it stopped charging due to the phone getting to hot, I barely used my phone and came back and hour and a half later to it being at 30%. That’s seriously unacceptable, at this point an android is looking pretty good! My battery health is at 86% btw

Mar 24, 2024 2:47 AM in response to ChandanNapster

same here (se 2022) since 17.4.1… Whats worse is that overnight it charges to full and then stops charging and starts draining, leaving me to start the day with a phone @ 70 % (!!!) (different cables, different chargers, and wireless charging).


And indeed also in use (particularly carplay) very hot so removed the protective casing…


Seems like a software bug in the latest iOS leading to drainage (again.. :( )

Mar 28, 2024 12:27 AM in response to YudiYamawaki

I have an iPhone 15 Pro, my battery has been fine until 17.4.1, I have restarted my device numerous times as usually this helps after an update...

No luck, I used to charge daily, leaving it charging at night, now I'm charging twice a day.

My charger brick is from Apple, cable is from Apple, using all official hardware as always been, my battery life is at 100% and I fear with this my battery health will take a huge hit.

Realised there's "another" 17.4.1 available if you connect your iPhone to a Mac or PC, doing that now and hope for the best.

Apple, please fix this as it's really a pain in the back.

Apr 3, 2024 2:01 PM in response to YudiYamawaki

I recently updated my 15 pro max on a computer I noticed there's an improvement compared to the update on the phone. I disconnected my phone at 3AM then when I woked up I used my phone the whole day since I'm off duty. Until 10PM I have 20% battery left with Screen on time of 9 Hours and 30 minutes compared to the 1st update which I can get 5-6 hours only.

Apr 7, 2024 12:40 PM in response to Doctor Mesmer

Yeah, 17.4.1 has more than halved the battery life of my iPhone 13 Pro.


The only way of getting through the day for me is to always have 'Low Power Mode' on.


Sadly, battery life is not the only problem with 17.4.1. 'Optimized Battery Charging' is broken and the keyboard is even more miserable than it used to by, it seems to me.


The iPhone 13 Pro was initially a very nice device. With iOS 17 it has become a joke, nothing substantially new, just miserable battery life and inconsistent behaviour.

Mar 22, 2024 4:37 PM in response to YudiYamawaki

I have high battery drain issue on my iPhone 12 since i updated to 17.4.1. My battery health is 89%. after struggling for hours with high battery drain & charging issue, i factory reset my iPhone but status remains same.


Battery drops 15-20% within 15 min while on low power mode & standby, it charges very slowly. All while iphone frame is rocking hot, whether it's charging or dis-charging on standby.


I hope it will not burst. phone is of no use at all to be honest.

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Battery Draining on my iPhone after recent iOS update

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