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iOS 16 Battery Drain Thread

I noticed a bit more battery drain… i’m down to 33% after a 24 hour period in which i clocked 6 hours of screen-on time. Normally I’d be at 55% or so, but its been a day of unusually heavy usage. Will keep an eye on it.

13 Pro, 99% battery health
 
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I was on the beta. I feel like my 13 dies twice as quick as it did on iOS 15. I've been on the RC for a while so there's no reindexing or whatnot going on in the background - performance is smooth and my phone is not heating up much at all after I believe beta 5 (the one that polished most of the UI bugs up). It used to last way longer. I get around 3.5 hours of screen on time now where before I easily had ~6 and with much less standby drain too.
 
The indexing of photos for duplicates in the background is bound to use up quite a lot of power and could take a few days to a week depending on the size of your photo library.
 
what i had to do to mitigate battery drain. disabling widgets and location services that would be triggered like weather widget. and disable other location services
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aohus said:
what i had to do to mitigate battery drain. disabling widgets and location services that would be triggered like weather widget. and disable other location services
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Yes, I did the same and it works in the sense that it doesn’t drain the battery without doing anything like before. But I still feel the phone gets hot as soon as you try to do anything at all.
 
The Calendar app is what is killing my 12 Max. It has the highest battery usage by app at 44%. Typically I'd be at 20% left after a normal day when I put it on the charging stand at night. For the past two days, I'm at 20% at 4pm. Not sure if it has something to do with Exchange or my gmail acct., but something is F'd.
 
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Yup. Getting 5-6 hours of SOT on my 13 Pro. I used to get 7-9 easy, would go to bed with 20-40% left. Now I can’t get through a day.

I’ve been on the RC before public release, so it’s not just indexing. I also have 97% battery health - ironically, it was 98% a day or two ago. All this recharging is ruining it.
 
I just installed the 16.1 public beta and that had seem to steady the battery drain. After 10-15 minutes of general(not watching videos or playing games) use I’m still at 99%

Before I’d get down to 94-95%

Certainly encouraging but will continue to monitor
 
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I wish folk would stop saying ‘it the phone indexing’ blah blah. My iPhone 13 PM has been running 16 RC since PB was release. I think any indexing be done by now.

My phone was on my bedside untouched in low power mode from 22:15 until 05:30 and it lost 4%.

It could be a bad app, who knows?

All I can say is that without any setting changes etc on my behalf, battery life is a lot worse than it was with iOS15.x
 
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JemTheWire said:
I wish folk would stop saying ‘it the phone indexing’ blah blah. My iPhone 13 PM has been running 16 RC since PB was release. I think any indexing be done by now.

My phone was on my bedside untouched in low power mode from 22:15 until 05:30 and it lost 4%.

It could be a bad app, who knows?

All I can say is that without any setting changes etc on my behalf, battery life is a lot worse than it was with iOS15.x
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I do think that Apple has some work to do on background app refresh control and mitigating the effects of bad app behaviour. I sometimes long for the days when there was no background app activity allowed except for a very few special cases.

I have Background App Refresh turned off globally because it doesn't seem to affect anything I need to do, for instance I still get WhatsApp messages coming through just fine, yet even with it globally off I sometimes see apps that I don't even use shown in the battery section of settings as having run for maybe 12 or 18 hours in the background over a 24 hour period. Because of this I've ended up gradually deleting more and more of these problem apps which seems to be the only way to stop them. It doesn't seem to totally destroy my battery life so perhaps it's an issue with the battery section of settings incorrectly displaying stuff running in the background when it really isn't but in any event there is definitely something that needs to be fixed in Apples handling of background refresh and/or how it's reported. This has been an issue for me since at least iOS 15 (I can't remember if I saw it on iOS 14).
 
I have an iPhone 13 Pro Max and I am experiencing a battery drain and heating issue. I've had it since I updated.
For example, I unplugged the phone at 7am this morning (it is now 11:11am). I backed up a few pictures to Google Photos and my phone was noticeably warm. I haven't touched my phone since. Now, the battery is at 94%. If it helps, here are the widgets that I have on my lock screen: date, time, weather, and battery.
 
uncming said:
I just installed the 16.1 public beta and that had seem to steady the battery drain. After 10-15 minutes of general(not watching videos or playing games) use I’m still at 99%

Before I’d get down to 94-95%

Certainly encouraging but will continue to monitor
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How is it going? I am also experiencing battery drain and updating to the latest beta is one of the options I am considering. Restoring the phone is also an option but I prefer to use it as the last resort.

In case anyone is interested, I have an iPhone 12 PRO with 88% battery health. And here are few things I tried:
  • Removing widgets
  • Disable COVID exposure tracking
  • Disable Apple diagnostics
  • Reinstalling WhatsApp (the app with highest background activity without reason)
  • Reseting network settings
 
Ah yes, the endless story. It doesn’t fail. Year after year. Update after update. It has been happening since I started to use iOS devices, 12 years ago. Not once does this fail to happen. It’s irreversible folks, downgrade to iOS 15 while you can and keep it there. There is nothing Apple will ever do to fix it.

Back with the massive battery runtime jump of the Xʀ, I had a little hope. I hoped this would finally stop happening. Very soon after iOS 13’s release, I realised it wouldn’t. Maybe, with a little hope, the M1 reverses it. Expecting the inevitable reports of ”my iPad Air 5 and 2021 iPad Pro’s battery life was reduced by at least a couple of hours with iPadOS 16, what can I do?”, however.

Not even the first major version is safe anymore. Unbelievable.

iPhone Xʀ on iOS 12, surpassing the vast majority of runtime numbers I’m seeing here, even with moderately heavy use (camera-centric). On that topic: users of the iPhone Xʀ repeatedly reported north of 10 hours of screen-on time with moderate use on iOS 12, the vast majority being closer to 12. Over and over: “11.5, 12, 12.5, 10 with heavier usage”, etc. iOS 16? “Be happy, 6.5 hours is a lot!“. I’m getting 6.5 hours of full LTE usage on an iPhone 6s on iOS 10, with… 65% health.
 
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I had the Astronomy lock screen turned on, that does burn some energy. It showed up in the list of apps using the most energy as Astronomy (wallpaper) 6%.
 
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