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Apple Says Installing iOS 26 Might Impact Battery Life

techfreak23 said:
That’s compared to what exactly? Previous betas or just 26 beta vs 18 general public release? Is your overall battery health worse than whatever you are comparing? I’m just going to point out the obvious that betas have more going on in the background including more verbose logging, background processes and optimizations still being ironed out beta to beta, etc. so they tend to drain more power compared to general public releases. I’d love to see your comparison when you’ve been running the public release after a few weeks.
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Compared to iOS 18 since those are the only two OSes this 16 Pro has run. I’ve installed betas over the years. While I’ve read accounts of significant battery drain, I’d not seen any notable drain - until iOS 26 betas. Anyway, not sweating it. I’m sure it’ll return to a more expected battery performance. But it duesntvreally matter. In 4 days I’m swapping my 16 Pro for a 17 Pro Max (my first Max). 😉
 
This happens with every phone, yes even Android. It's a normal thing for any software update on anything so not sure why they have mentioned this unless there is more to it.
 
lazyrighteye said:
Compared to iOS 18 since those are the only two OSes this 16 Pro has run. I’ve installed betas over the years. While I’ve read accounts of significant battery drain, I’d not seen any notable drain - until iOS 26 betas. Anyway, not sweating it. I’m sure it’ll return to a more expected battery performance. But it duesntvreally matter. In 4 days I’m swapping my 16 Pro for a 17 Pro Max (my first Max). 😉
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I guess I could have assumed that based on your comment saying 16 lol Congrats on the upgrade. Definitely shouldn’t have any battery issues there.
 
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Good to see this support article from Apple. Should help one facing temporary battery drain issues and is searching for some kind of help.
 
emulator said:
How do you measure that, seriously? I mean even 2x slower would make it almost unusable. But 10x? Looks like a made up number.


After a few weeks can we say indexing is done? And what if it's still eating up the battery much faster than before?
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Batt drain seems to come right after a week or so, but some people can’t handle that devices do get incrementally slower and faster draining with each major update. Three years in now with my 14 pro and 14 pro max. Didn’t care for the 15 or 16 pro models but 17PM’s cameras, battery, AI, weight reduction, USB C, etc, are beginning to wear me down!
 
Downundermac said:
Batt drain seems to come right after a week or so, but some people can’t handle that devices do get incrementally slower and faster draining with each major update. Three years in now with my 14 pro and 14 pro max. Didn’t care for the 15 or 16 pro models but 17PM’s cameras, battery, AI, weight reduction, USB C, etc, are beginning to wear me down!
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Wearing you down as in that’s a good thing?
 
sziehr said:
Yeah and this statement admits we know we made mistakes and we have no plan to fix it right now, so yep time to downgrade to the 18.7 ....
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Was 18.7 trouble free? I have a 12 Pro and unsure whether to update. Currently on 17.1.1
 
swm said:
I've been running ios26 since dev beta 2 on an iPhone 12 Pro, it seems to have noticeable shorter battery life. but the battery is already at 80% health, so that can be very well related to that too
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How was 18.7 on the 12 pro? I’m on 17.1.1
 
been on beta ios26 to final last night on phone and ultra 1 watch. Have already noticed the drain on my phone and running betas on my watch. quite a but on the watch
 
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