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Battery life after 27

Is anyone else’s battery dying really fast since the 27 update? I have a 16 pro max and it’s halfway dead and I just unplugged it.

3 replies

Leo0863 wrote:
Is anyone else’s battery dying really fast since the 27 update? I have a 16 pro max and it’s halfway dead and I just unplugged it.

Force Restart your iPhone. I do this after EVERY iOS update --> Force restart iPhone - Apple Support


Also keep in mind that when you install a major update, your phone is working overtime behind the scenes to reindex the millions upon millions of bytes of data on the phone.

Welcome and thank you for reaching out. 🤗


A rapid battery drain after updating to iOS 27 can happen while the system reindexes and optimizes in the background, usually taking a day or two.


According to Apple: If you notice that your battery life has decreased after updating your device, wait a few days and then check again. Even though you can use your device immediately after an update, certain tasks related to the update continue in the background and might affect battery life and thermal performance. While they're ongoing, you might see the Insight Ongoing iOS Update in Settings ➢ Battery.


If you need more help, contact Apple Support directly.


Take care!

Smiliñ 😎 Brian | Community Volunteer

It’s been a month or so for me.

i have been over at least 10 reduce battery drain guides.

& indeed everything is off.


anyway i have to charge 2x a day now!

where as before I would get 2 days..

I don’t use the phone a whole lot.

iPhone16.


& I have only ever charged this phone past 80% 3-4x since new & the battery’s been great.

but now it won’t survive the night if I don’t leave it plugged in or charge to 100% which just kills the batteries..


it’s not just bad..it’s horrific!

I have force restarted a couple of times since too in the hope!

shame really.


i get a day off next week & I will be down grading asap!