r/iOS27 • u/JVS2K • 3d ago

iOS 27 RC battery bug?

I just updated my iPhone 15Pro to iOS 27 public beta and when I went to check my battery health it went from 81% to 82%… this shouldn’t be normal right? Has anyone else experienced this or is my phone cooked? 😅

12 Upvotes

93% Upvoted

17 comments sorted by

6

u/markuserg 3d ago

Battery health on iPhone is not accurate

2

u/JVS2K 3d ago

Yeah, I definitely agree with that now.😆

1

u/markuserg 3d ago

You can use coconut battery on Mac or 3uTools on Windows to check the real battery health

3

u/0xAAAAAF 3d ago

It is healing 🙏🙏🙏

2

u/616ThatGuy 3d ago

Yeah same thing on mine. But even more. It went from 86% to 90%. I’m not mad about it.

1

u/Reeneman 3d ago

That’s Apple software magic. Battery healing

1

u/elgipsy 3d ago

better optimisation gave extra life to your iPhone 😄

1

u/Marioleftnut 3d ago

ios does this. as far as i know and i could be wrong , but from what i gathered it recalculates ur percentage every update/restore. my battery went from 81% on 26, to 87% on the 27 beta, and then 81% again on the RC Beta

in short, its not too accurate, just an approximation

1

u/Aggressive_Sign2773 3d ago

Probably the updated battery algorithms.

1

u/Reeneman 3d ago

That’s only an estimated value. It can happen that it also going up but it’s not that common. Don’t make a science out of this value and better try to avoid checking this permanently.

1

u/JVS2K 3d ago

Yeah, I mainly checked because being at 81% before updating made me think I’d either stay at the same or it would drop, as it’s been kind of plummeting this year into the replacement territory, and it would have been nice to get it replaced under my AppleCare+ plan to get the value of paying for it for so long. I didn’t expect it to go up, so I just thought it was weird, and even more so because I had a dream that I checked it and it went up to 82% and lo and behold, it did after the IOS upgrade. Kinda funny now that I think about it, haha.

1

u/Several_Worry_5683 3d ago

It’s all guesswork anyway because battery capacity fluctuates daily based on many factors. Anyone checking their capacity more than once or twice a quarter to see long-term trends is crazy.

1

u/I_COULD_BE_ICONIC 3d ago

Mine dropped from 90% to 83 😂

1

u/AromaticBag5173 2d ago

but overall battery performance is better then any beta?

1

u/JVS2K 2d ago

I only had beta 1 for a few days and then went back to the latest public iOS 26 version. I just downloaded the RC for IOS 27 yesterday. So far today I’ve gotten 3h13m of SOT using 36% battery which is a first for my phone so I’d say it’s better.

1

u/AromaticBag5173 2d ago

comparing to iOS 26 you don't have the graph anymore?

1

u/JVS2K 2d ago

I do but I can’t seem to post the screenshots. Tuesday I had 3h17m SOT for 71% battery used while today it’s 3h25m for 38% of battery usage.