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.

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.

Check out my post below… Turn off Wi-Fi, but turn on cellular data for all apps and see what’s using the most data, that will be the culprit

Same problem for me on my iPad Pro 11" 3rd Gen.

Since Sunday, it loses a solid 2%/h just by sitting there connected via WiFi.

Display is off, and I didn't touch it after the soft reset.

I don't think it's a hardware problem but just a bug in 16.1.1.

don't waste time and fuel to a "genius" bar appointment. went there yesterday and they basically blame the drainage on couple background apps and told me i had to completely deactivate them to get it fixed. the best advice i can provide to you is to follow the threads on subreddits iPhone and iOS. Apple will not provide solutions on support before they acknowledge the problem. Try DFU restoring for like 6 times without a backup, heard of some iPhones that got the drainage solved.

Charging graph should not be blank ? Right ?

look at the slope in the morning. Kust idling….

I should have read your full post, I see you shut off contacts backup already. I would call Apple and get another phone sent to you. This is ridiculous!

My drain has been not as terrible since my erase and restore to 16.1 with a force to 16.1.1. I haven’t noticed the phone burning on phone calls again either. It’s still draining but slower now.

iOS 16.2 is released, anyone else willing to give that a go and report back???

My few day old iPhone Pro Max battery barely lasts longer than my XR! I’ve spent way too much time researching every tip for battery improvement and nothing has worked. It’s glitchy at times as well. A couple days ago every time I wanted to close out of the YouTube app in particular I would try and swipe up and nothing would happen. It would take 5-7 attempts to get it to function. I deleted the YouTube app and re-installed, hard reset, power off and it has gotten better but not 100%. I’ve noticed a noticeable annoying lag when swiping up out of any app.

Besides the swiping up not responding or lagging, lagging while using some apps and the battery drain, it’s a fantastic phone. I’m ready to contact Apple and see what can be done. The phone is really amazing but this swiping up lag and battery drain are aggravating.

I’ve lost 2% battery just typing this post!

iPhone Pro Max 512GB

I went to bed at 11pm and until 1.30am my battery is fine that all of a sudden at 1.30am it starts to steadily deplete, I think when I went to bed the battery was around 90% and at 6am when I woke up it was on 44% so I’ve lost 46% over night with no screen time. Phone is 13 pro and battery health is at 91%

i have iPhone 11 Pro and my battery also started draining fast two days ago after upgrading 16.1.1, it was very dramatic. I tried turning off the optimize option and rebooting but that didn’t work. I let it die, and fully recharged and it drained again. I also erased and restored to 16.1 but I was forced to go to 16.1.1 during the sign in. But after the restore the drain was much less i thought it was fixed until I made a phone call and my phone got really hot and battery dropped 10% after 5 minutes.

@magikality

Currently doing the restore to factor settings. Prior to wiping the phone clean, I noticed there was no option to toggle notes to back up to iCloud. I added all notes "saved on iPhone" to new folders to iCloud and the other notes saved to my gmail accounts I left alone. I got the intuition that there is something going on with Notes while I was going through the process. I will try your suggestion after my phone is restored from iCloud.