Is anyone experiencing battery drain since updating to iOS 15.2? If so, any tips for what to do about it? I just updated this morning. Thanks!
iPhone 12 Pro Max
As posted in the 15.1 battery drain thread, some of the fixes that I found might help with 15.2 as well. I'm talking about drain that persists for more than the 1-3 days after an update while Spotlight is indexing. I had my iPhone 13 Pro Max and iPad Mini 6 BOTH draining enough to run dry in 20 hours of standby, and fixed it completely, so I'm still on 15.1 with no issues..
1) Turn off Apple News Widget on your Home Screen if you have it configured. I had seen that Apple News was using a lot of battery in "Settings > Battery" and I wasn't using it. Turning off background app refresh made no difference in battery use and drain in the background. Then I discovered the widget hiding on the screen to the left of the Home Screen that has my app icons, and turned it off. That reduced my drain from 5-7% per hour to only 3-5% per hour. I also turned off most of the other widgets except Calendar, Reminders, and Battery level for bluetooth accessories (watch, and AirPods).
2) I had my iPhone 13 Pro Max and iPad Mini 6 paired with my iMac and MacBook 16", and had "show this iPad/iPhone when connected with WiFi" turned on. I "Reset Network Settings" which broke this pairing, and COMPLETELY solved my battery drain issue. I was later able to plug my devices back into my iMac and pair/Trust them, but I made sure to turn OFF "show this iPad/iPhone when connected with WiFi" when I Trusted them, and the drain has not come back.
Apparently the WiFi network connection between iDevice and Macintosh computer maybe has the iDevice phoning home continuously in 15.1, even when you are not on the home, and this system resource is still draining the battery regardless of low power mode or not. But my best guess is that when the iDevice is NOT looking out for the computer constantly, with "show this device on wifi", then the drain goes away completely FOR ME. This might not be your problem.
iPaul28 wrote: "...I hope they can solve this fast..."
iPaul ~ Ask Apple to solve it fast here:
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I reported it to apple phone support and they just told me to do a factory reset. They weren't interested when I sent them the link to the posts here.
my iphone 11 is heating up very quickly before the 15.2 update.
when in standby, the battery drain is normal. but, when i’m using my apps (specifically facebook, instagram, or even the browser) the phone is discharging so fast.
hope that’ll be fixed. after the 15.1 update it’s being impossible to use the phone and not get angry.
hello,
I have the same problem with my iPhone
After the iOS 15.2 update, the battery of my iPhone drains unbelievably.
Before I went to bed my iPhone had a battery of 44% but when I woke up in the morning it had a battery of 31%. The main problem here is not using the iPhone and draining the battery. It never happened before this update. in my opinion, I think this is a problem with iOS 15.2.
Since updating to ios 15.2, my iPhone 11 Pro Max is fast losing battery. The battery drain even in standby is too much. 7-8% overnight. iPhones have this legendary standby time but this is very disconcerting. My battery health has stayed at 86% since ios 15.0. I waited the usual 4 days too allow for the indexing and other background processes but it has not improved.
Just charged to 90% and it doesn’t dropped any % overnight. I woke up and used the phone for 9 minutes and the battery dropped to 87%, so i just turned off the phone to see what happens and the phone discharged to 83% 🤡
I have the same issue on my iPhone 13 Pro Max. The battery drains to 10% in 10 hours during a day. My wife has the same 13pro max with 15.0.1 and it works for from 30 to 48 hours on one charge (web surfing, video watching, and random gaming).
Hey Apple! It's time to FIX THIS!!!
Yes, it is dire with 15.2 and my iPhone 7. Hardly lasts on a full charge for more than 5 hours, even to the point of turning virtually everything off. There is nothing, as far as I can work out, actually running any more beyond using it as an 'actual' phone. It was fine with 14 but 15.0 15.1 and now 15.2, total killer of battery life
AndrewBuckle wrote: "yes, original battery and it is listed at 91%. Perhaps that is the case that it is worn out (only recently got the phone, it is not an old phone ... about a year old)"
Andrew ~ Regardless of that unexpectedly high 91% capacity, the original battery is 5 years–old so due for replacement. (And its age would explain the iPhone 7's symptoms.)
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oldtimer2021 wrote: "I have the same problem, goes from 80% to 1% over night! after installing 15.2 update!"
oldtimer ~ What model iPhone is it?...
Settings > General > About > Model Name
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Hi the the phone is 4 years old. the battery charge capacity has dropped to 83% no message from Apple.
I charged the phone to 100% last night and it had only dropped to 85% over night! So maybe the wait 3 day rule is a thing?
I'll wait and see, and let you know.
Thanks for your interest!
Mine iphone 7. Battery drain started on iOS 14.8. Killed by iOS 15. Seems to be less devastating on 15.2.
Now the battery will drop from 80% to 60% in 6 hours on standby.
My advice to myself and all- Don’t upgrade the iOS unless really needed.
There never seems to be a solution to this legendary problem
I got my new iphone 11 4 days ago it was fine for 2 days but after updating to iOS 15.2 my battery is draining like anything. I use this phone for like 3 hrs max a day. Also i have turned off all the settings that could drain the battery. I also face heating issues while charging.
I have an extreme case of battery drain with iOS15.2. I got it on my brand new iPhone 13 mini I bought at the end of December. Since then my battery is drained at a constant rate of about 15-20% per 3 hours, no matter what I do. It happens at the same rate during the night when my phone is at low-power mode + airplane mode + both Wi-Fi and Bluetooth disabled:
And my average day looks like this:
That's really impressive. Apple - great gift for Christmas. Thanks a lot!
There are a lot of suggestions like: (it's mine) disconnect your device from your AppleId account and see what happens, disconnect AirTag, reset network data, and many more. Some of them seem to help but only temporarily.
I think the best "solution" (not to waist precious time) is to wait for Apple to provide fix (hopefully soon). They release new releases on Thuesdays quite often. I hope this bug is critical enough for them to fix it soon. For now I'm using iPhone SE (1st gen) which seems to be not affected by this bug and playing with various fixes with my 12 mini (no success so far - battery consumption close to yours).
iOS 15.2 Battery Drain
