BATTERY DRAIN DRAMATICALLY ON IOS 16.1.1

When my battery was going crazy and the settings change suggestions didn’t work, I did the downgrade as well using the certified 16.1 that I downloaded and restored using my MacBook Air (I googled “restore to previous iOS for the instructions”). I chose the restore apps from App Store option as well and then my backup forced me to go to 16.1.1 before it would finish. When I finally got back in, everything appeared to be running fine until I made the one phone call and my phone got really hot. I let it sit for awhile and checked for more updates and did a reboot and no issues since. I just updated to 16.2 on Christmas Eve and everything still seems fine.

I guess if you’re having issues you should wipe and restore plugged into a computer. I think it’s safe to backup first as long as you’re restoring from the certified file to fix your OS before restoring a backup.

Apple didn’t call me back today as scheduled for follow up. The computer plug in restore and not transferring entire contents from iCloud (only photos will download, contacts and messages, not apps or settings) definitely improved my battery between charges. Like I said in a previous post, I was getting about 10-12 hours (total actual hours, not screen time) from 100% to 0 prior. I’m able to get around 20 to 22 hours now from 100% to 0 (this includes while sleeping and phone not in use and is not total screen time hours, it’s actual hours). I have always on display on with no additional widgets. Screen light to 50% and every friggin option you can have off to conserve battery. I don’t have any apps running in the background and only photos backing up to iCloud when it’s n Wi-Fi. Contacts I’ll just turn iCloud backup on once a week or every other week for a day to backup. Same with messages. So although it doubled the battery time between charges, I’m nowhere near people saying they can go two days in between having to charge their 14 Pro Max. I’m glad it improved but it’s not what it’s supposed to be. What do others think? How many hours can you go in-between 100% full charge down to zero? Maybe 20-22 hours is fair for using my phone an “average” amount of time daily. How many hours in-between charges are people getting?

I was down to around 4-6 hours between charges (screen brightness on minimum, always-on display set to off, no widgets, lots of features turned off to extend battery life) prior to upgrading to 16.2. Now after upgrading to 16.2 I'm losing about 35% battery across 24-hours with more normal (heavier) use, though always-on display is still set to off.

I think I somehow I resolved the problem. First think I did was to change 5G auto to LTE, afterwards I put the phone in low power mode, then disabled Find My app from useing location, deactivated find iPhone in system services. Then I opened Find My app and deleted Apple AirTag… After that I enabled location for Find My app and activated find iPhone in System Services. After 20-30 minutes I put the phone in normal mode. For now it appears everything as normal. Lost 9 % in 3 hours with YouTube 60 minutes, Waze 30 minutes, Safari 15 minutes, WhatsApp, with LTE and WI-FI. That’s on iOS 16.2. Hope it will work normal.

When I first got this phone when I first got this phone it would last literally all day and still have 30% when I got home after a 12 hour day

Battery would not last until lunch now just had professionally installed a new battery in my iPhone X same old same and the battery is at 100% capacity using standard slow wall charger at night. Starting to feel like the update is designed to kill older phones so we will upgrade.

Ditto for IPhone 8 and wife’s I phone-14/Promax. Apple needs to do better . This happened

with earlier versions and required battery replacement at Best Buy or Mac store. What a debacle that was as authorized Best Buy tech broke my phone.

I have the same for iPhone 13 Pro. Battery was fine before the update, drains like mad after it. Doesn't even last a full day.

Completed iOS 16.1.1 update. Very noticeable rapid battery drain noticed immediately on my iPhone 11. Not great.

This worked for me.. many thanks for posting.

Here it is 14% drain overnight with no screen time. This is totally unacceptable from Apple to keep mum on the mess iOS 16.1.1 has created.

I am also facing battery drain in my iPhone 11 I have also try force restart

but no any changes

the same thing happened with my iphone, is this an ios or hardware error, does anyone know what the problem is?

ios 15.7.1

iphone 7+