iPhone battery draining after iOS 18 Update

Compré el Iphone 16 hace 1 semana, y desde el primer ciclo de carga la batería dura muy poco para un télefono nuevo, y que según lo oficial su batería dura 22hrs de uso en video.

Desde que lo desconecto a las 06.30am hasta las 05.00pm ya tengo un 15% de batería.

Along with generally draining faster since the iOS 18 update, when I plug my phone to charge it will show a very quick increase of charge over just a few minutes, but if I take it off the charger, it drains back to the same level it was before charging in less time than I had it on the charger.

I am still in the process of figuring this out myself but I think the issue seems to happen when you have apps sideloaded / installed from 2 different dev profiles / certificates. For example, I have some LOB app from my company, and I sideloaded a custom app I am personally developing, and this causes a huge drain (99% to 9% in 6 hours), phone gets incredibly hot. The moment I uninstall all apps belonging to one of those profiles, I am ok. E.g. uninstall all LOB apps from my company or uninstall the sideloaded custom app I am developing.

It has been crazy. Nothing seems to help.

I switched from a 14 ProMax to a 15 ProMax and my phone does not last. It has been a week now since I switched, and I blamed it in part of being in a low coverage area and the internet being out. Back home. Still the same thing. Home and lock screen was just bonkers, so I removed everything from the home and Lock Screen. Disallowed a whole bunch of backgrounding apps ( even though not related to the drainage ), a few weather apps, ... the usual.

But, like this morning, phone is charged. I used it for 20 minutes: a 10 min phone call and 10 min on the ring app changing some settings, and the phone lost 10% battery ... for 20 minutes. That used to be maybe 2% ?

It is like the smallest thing runs the phone on full blast?

Instead of on a single efficiency core?

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.

me also having the same issues... after iOS 18 updated... chat with Apple Support and giving me all the instruction that already did and lastly as to do the factory reset... so wasting time... its not about phone setting... ITS ABOUT iOS 18 UPDATES!!!

I run both Pixel and iPhones and so far Google is making an attempt at improving battery life in their software but have other bugs or issues... Apple is too complacent and Apple sycophants are the problem

i also have the 15 Pro, and not only did my battery drain ultra fast today (updated last night), but now it’s taking forever to charge! I plugged in 2 1/2 hours ago, at 5%. I’m still plugged in and only at 19%? Come one Apple! What gives?

Post ios 18 my phone battery degraded from 100% to 96% on iPhone 15

pro and my other phone iPhone 15 to 98% and count cycle is just 118 in iPhone 15 and 230 in 15 pro. Not sure others too have seen this

after updating to iOS 18 aswell my iPhone 13 battery has drained so quickly I might need a new battery because last night my phone was at 40% and this morning I woke up to it being at 8% and 2 minutes later it went down to 6%. Does anyone have any tips to prevent it doing this

Anyone else see that the main culprit is Photos background usage. Mine is hitting 75% in the background. I upgraded when it first came out so it’s been a month now. Only thing that helps is turning the phone off when I feel it getting warm.

I’ve still got the “Update finishing in background’ notification in the battery settings. It’s been a few days since the update to 18.1 - anyone else? Or any timelines that differ for how long it’s taken for that message to disappear? Thanks.

And I switched off auto sw update, and I switched off auto sw download, and I manually deleted the downloaded sw setup file of ver 18.1 for a couple of times, but in vain. The update notification to update to 18.1 either now or this night is always there.

[Edited by Moderator]

Same thing here—I have an iPhone 14 Pro Max, and after updating to iOS 18, my battery is draining so fast. I used to charge once a day, but now it’s three times a day. Is it always going to be like this?

[Edited by Moderator]

Same here… I have an iPhone 14 Pro Max. Before ios18 my battery was really great, I use my phone for work most of the time so it just stay on the table for calls. Before I was having still around 70-80% battery at the end of the day.

now with iOS 18 without doing anything during the day, I have 25% at the end of the day…

what the **** is going on ???