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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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Question marked as Top-ranking reply

Posted on Sep 19, 2024 10:36 AM

Found this on another thread How to Stop Battery Draining on iPhone After a Recent IOS Update and it's been a game changer, battery which was reducing 20 to 30% in 1 hour of basic usage now reduces only 15%. I will update you on which adjustment helped alot as I am currently testing on it as I don't want to disable some features so will update soon here.

397 replies

Sep 22, 2024 12:08 AM in response to Mis73

I purchased my iPhone 16 pro on Friday. Battery is draining super fast, around 1% every 2 minutes of just general texting! Run diagnostics with apple support who say there is not issue. iOS 18 wanted to update again even though I am already on ios 18. Someone mentioned waiting a few days to see if it ‘learns how I use my phone’ and see if it improves. I replaced this phone due to poor battery on my 14 pro max and I’m seriously unimpressed.

Sep 22, 2024 10:16 PM in response to Mis73

I have a dramatic battery drain after updating to ios18 too, this on iPhone SE and iPad. The iPhone SE empties itself totally not being used in less than a day (!) and the iPad looses 20% just sitting here with cover closed. For some OS that brings only few new functionality this is understandable. This already happened in the past but obviously Apple did not learn from it.


Sep 23, 2024 2:25 AM in response to Mis73

I have been using iPhone 12 since the day of its release. before updating my device to iPhone 12, I had neither issue with the battery draining too quickly nor my device heated and saw heating warning on my screen. 2 days into updating my device to iOS 18, I am facing the heating warning and my iPhone is not charging more than 30%


[Edited by Moderator]

Sep 23, 2024 4:26 PM in response to Mis73

IP 15 Pro Max here,

Before the iOS 18 update my battery’s health was at 94%, now it dropped to 90% within a few days. Not to mention the fact that even before I was extremely worried that I lost that 6% of the battery’s since last year when I got the phone, it kept draining the battery’s health way quicker than I had anticipated, now it is just horrible. I’ve updated to iOs 18.0 on the first day of it and since then I’ve been losing approximately 0,75-0,8% of my battery’s life a day. I am really concerned about the whole thing, this being my first Apple device too. I’ve tried everything such as: closing apps refreshing in the background, freeing up some storage, low power mode, constant and universal charging. However nothing seems to work, I’ve seen others having the same issue and I’m asking myself what is going to happen to the battery’s health after 18.1 . Will it go back up? Or we just have to replace our batteries or even our phones? I saw someone saying that we’re literally counter-clock through this whole thing. Forgot to mention that I’ve kept my charging limit to 80% since I got the phone. Not even to bring up the fact that a full charge doesn’t last me 12 hours on moderate usage.

What should we do???

iPhone battery draining after iOS 18 Update

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