How to Fix iPhone 15 Pro Battery Drain After iOS 18?

As I mentioned in the first page or two of this thread, nothing worked for me either. I turned off ALL background processes, disabled everything but the most basic features. After spending HOURS with Apple on the phone (and people that did NOTHING to help but tell me, "No one else is reporting this issue," (even though this massive thread was here), a "senior" tech at Apple said, just re-core your devices and do not restore from iCloud backups.

It killed me because I've not done a bare metal install in years and years of new phones. Ridiculous. But I had to get working again, so I reluctantly did it. It took a week to get everything back and installed without a backup recovery. Yet I will say it worked. I've not had the flaming heat or severe battery drain since, even with my old apps installed and running normally like before.

I have NO idea why this helped since it's the same set of apps, with the same settings as iOS 17, but for some reason 18 got hosed and just made my phone feel like I was holding a portable heater. It seems to still be OK with 18.0.1. I'm not happy that I had to waste a week of time not being able to work on my phone and iPad Pro, but it seems to have worked.

Hi… after much confusion to why the last last few days I’ve found that’s the two culprits for the battery drain on my

iPhone 15 pro max seem to be related to these…

1. Home & Lock screen
2. Weather App (more related to the widget)

The fix which seems to be working for me..

1. Weather app - location set - when using
2. remove weather app from homescreen
3. remove weather widget from homescreen
4. remove weather from widget side panel
5. remove weather mini widget from lockscreen
6. restart phone

and that’s it for me and my phone is now holding its charge a better :) if only lost 1% in the last 10ish minutes typing this and logging in to this.

How about after a month? Is it still iOS doing these updates???? No. This answer is never helpful.

I have the standard 15 and have only had it for a few months. I will be on my phone for 5 minutes and literally lose 5% or more. It's insane because I've never had an issue with a battery like this before. They need to fix this battery drain with an update fast, because it's dropping beyond normal speed

I have an year old iPhone15 Plus with battery at 98% capacity with 165 cycles. I have had great experience till 17.6

Problem started after the upgrade to iOS 18 a few days back. Home and Lock Screen was like 13-15% of battery usage and it was draining like crazy. Another contributor was WhatsApp with a lot of background activity. Like many on this thread I suspected the Weather widget and removed it. Also turned off background app refresh for WhatsApp. At this moment looks like these two are the culprits. Things seem to be back to normal

iPhone 15 Pro (10 months old) battery health 94% updated to iOS 18, battery draining start with home & Lock Screen as well as weather widget for average 15% to 20% daily/per charged limited at 80%.

updated to 18.0.1, battery health dropped from 94% to 92% in less than a month. And yet home & Lock Screen as well as weather widget is draining the battery.

Apple, this is definitely iOS 18 issue, pls fix it with new iOS update before your os destroy my iPhone, and those who affected.

I tried all of these tricks and had, anyway, disables a lot of the battery draining apps because the 15 pro was so much worse than my 14 pro for battery use. I am still losing more than 50 per cent in the first four hours of use. I am going to try to return the phone to IOs 17 - seems the only option. In future - not a snowballs chance I will trust a software upgrade OR indeed a phone upgrade. the 15 pro is just not worth it

Hey guys, same problem here with my iPhone 15 Pro

I removed the weather widgets from the Lock Screen and the situation improved dramatically. Seems to be related with the weather app

It’s awful. I feel like Apple does this intentionally every year to get people to buy new phones. iPhone 15 Pro Max

buy a new phone this is what they do when the new phone comes out put an update that messes up the old phone by making it slow draining the battery and probably other things as well

We just have to wait for the release of iOS 18.1 and keep our fingers crossed.

Hello. Do you fix that? home and lockscreen problem. Please tell me

Same. iPhone 15, and have noticed a significant change in my daily battery drain since updating. Don’t even enjoy most of the iOS 18 features, and nothing has changed in my usage. But I’m 50% by middle of my day when I used to never get below 75% by now.

hockeycommish wrote:

It’s awful. I feel like Apple does this intentionally every year to get people to buy new phones. iPhone 15 Pro Max

Apple has already stated many years ago that they had never, nor would ever "do anything to intentionally shorten the life of any Apple product, or degrade the user experience to drive customer upgrades.