iOS 18.2 Heating issues and battery drain

For me, iPhone 14 Pro Max, updated and while on a wireless charger within 5 minutes stopped charging and it noted that it would continue when it cooled down. It was extremely hot.

When on a charger, it slowly drained. I checked what was using my battery and it had a mile tracker app running in the background, and it was at 99% of the batteries usage. Not used the app for quite a while so I deleted it and it seems to be charging again now.

After over a week of terrible battery life and burning hot phone, with my phone even refusing to charge at times last night because the temperature was too high, with a complete reset and reinstall not fixing the issue, I am cautiously optimistic that I *may* have solved the problem by resetting, removing, and re-adding my Apple Watch. It looks like Apple's calendar sync service may have been the culprit, trying to sync with the watch. I don't explicitly use the Calendar app, so it was mystifying to me why it was showing as consuming hours of battery (versus minutes for apps like Facebook that I actually used). I'm still running in low battery mode for now, but the heat has eased up, the downward slope on the battery chart has flattened off some, and the activity chart is looking much better.

Disabled the Apple Intelligence option in Settings and the battery drain has stopped. Before when it was on, could literally see the battery % indicator decreasing by 1-2% in the time it took to write this message!

Please follow this path,

iPhone > Settings > Apple Intelligence & Sire > Apple Intelligence > off

Apple does not respond to users here, except to answer precise use questions.

The vast majority of users are seeing no issues with iOS 18.2, so most of these issues come down to:

1. For the first 24 - 48 hours after an iOS update, more battery power will be used as the device needs to rebuild various databases
2. Apps that have not been properly updated to work with iOS 18.2 may use more power than usual

If you don’t want a trip to Apple Store, let’s look at your battery capacity usage by app. Please follow this path,

iPhone > Settings > Battery > now screenshot showing usage for last 24 hours and another for 10 days. Here’s my 10 day screenshot.

As has been stated before, the first 24-48 hours after an update or purchase results in a lot of battery use as the phone has to build/update all its internal databases.

Second, it appears there has been heavy usage of the phone as well during this time.

In my experience the remote diagnostics will say there is an issue, but may not be able to pinpoint the exact cause. The Genius Bar can do a more thorough examination and they’ll usually be able to pinpoint the issue. The genius will answer questions to the best of their ability. Sometimes you just have to open it up and do more extensive testing. I’m a former Apple Store manager.

Yes also having this issue on my 16 pro Max it started getting very warm recently I've updated last week and it's already been a week and battery hasn't been great for me either but I did turn on beta section under software updates and report battery drain in the feedback app

iPhone 14 Pro, battery draining fast since 17->18.1.1 upgrade. Just upgraded to iOS 18.2 and hoping it's better.

As a sidenote, I went through my configs and I realized that "Hey, Siri" was enabled -- and it wasn't enabled before. So take a look at it, maybe the upgrade is enabling it.

Have you restarted the phone? Apple recommends a restart after updates...

Please show the whole page that graph is on. We need to see battery capacity usage by apps for last 24 hours and also 10 days.

Please follow this path,

iPhone > Settings > Battery > now screenshot showing usage for last 24 hours and another for 10 days. Here’s my 10 day screenshot.

All we can really do is submit feedback in the feedback app by turning on beta section under software updates look for feedback app and report it in there!

Show the apps using your battery capacity. What you’re showing doesn’t help us solve your issue.