iPhone battery draining after iOS 18 Update

iOS 18 draining my battery

Last night (17/09/24) I upgraded to iOS 18 update but this morning when I started using the phone, my battery drained out very quickly - anyone had similar issues.

any solution please ?


[Re-Titled by Moderator]

iPhone 14

Posted on Sep 17, 2024 2:06 PM

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Posted on Nov 3, 2024 5:07 AM

It’s the photos app. I’ve had things like background app refresh, dictation and location turned off for years. I have about five (non Apple) apps installed (no social media or entertainment type) and I use my iPhone 15 Pro primarily for talk and text which never accounts for more than 5% of my battery use, even on a heavy use day. I went from holding a two day charge to charging twice a day immediately after iOS 18. I noticed in Battery Heath that Photos was using 32% of my battery in the background which was alarming because I don’t use Photos in that capacity, and for the fact that I have background refresh disabled. My solution was to turn cellular data off for Photos entirely. (Settings > Apps> Photos > Cellular Data> toggle off) It’s been about a week and my battery is holding almost the same charge it did pre-update. I hope this helps!


Apple has essentially overhauled the utility app into their own version of social media, riddled with unnecessary AI and it’s working as such. Imagine it as uploading 5,000+ photos and videos to Instagram all at the same time. As long as you connect to WiFi periodically, your photo’s will continue to sync to iCloud. I don’t use the app much, but I can’t find any reason to have Photos running on cellular.


Side note: I do not connect my iPhone to WiFi on a regular basis. If you are constantly connected to WiFi, this fix likely won’t work for you as the app will continue to run in the background via WiFi and there is currently no way to disable this function (hence the issue).

490 replies

Oct 8, 2024 3:07 PM in response to Mis73

I don’t think anyone has a solution… we’re all waiting on Apple to get off their buttocks and fix this as the iOS 18.1 did absolutely NOTHING to remedy ANYTHING that we’ve been experiencing that’s driven us crazy! 🤪 The huge battery drain, the hot phones, the loss of WiFi… c’mon Apple! Do you want us all to buy the far superior Samsung phones?!? The ones with much better cameras and NO ANNOYING NOTCH at the top???

Oct 11, 2024 8:09 AM in response to Mis73

My iphone 13 pro max battery draining drastically after updating to iOS 18. My Battery Health reduced to 77% just in a week of time from 84%. Unbelievable. Apple made this update to drain the batteries so that people choose to new phone to increase the sales or what????


This has been common issue on all iphones i have used since more than 10 years.


really disappointing Apple.

Oct 16, 2024 10:07 PM in response to Vishal T V

Already did that, no change.

Example: fully charged yesterday 10:30pm, unplugged, left over night, this morning at 06:00am 18% battery left.


A full reset is also not an option, sorry. You can't expect people to do full resets after every update and spend hours if not days to get everything working again.

Yes, I know we have backups, but there are plenty of apps that won't backup completely for security reasons, banking and so on.

Oct 23, 2024 2:45 AM in response to Mis73

I have the same issue with battery drainage since updating to 18.01, 50% down in 12 hours when on standby. iPad also getting very hot. Never had an issue before upgrade 2 to 3 day life.

is this the same issue as battery drainage in MacBook which I’ve had for 13 months cannot leave it on standby. Apple have ignored this issue when contacted.

Oct 23, 2024 7:38 AM in response to Mis73

Wrote in via Apple Feedback, bug report and linked this thread.


I don't have time to call in, hang around with support, who would then advise to wipe my phone and start fresh. I used to do fresh installs on the computer and iPad in the past; but these days; there's just way too much information, apps, login credentials and what not on a mobile phone. It would take weeks to start from scratch.


Anyway. Sent the link to here, so they will hopefully read up ... and not make further claims when somebody calls in that they've never heard about this issue.

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iPhone battery draining after iOS 18 Update

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