Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Don’t think it matters

Now percentage is slowly going down, but not correctly. Each reboot starts at the supposedly right percentage which is 3% lower. Currently at 62%. NOW it’s hard to deplete this ducker, it’s hilarious
 
  • Wow
Reactions: LFC2020
Stuff this, calling them now.

CDED0BEE-DFFE-4A40-B3F6-F075A70C4B3D.jpeg
 
Wanted to perform a diagnostic test on my phone 🙄🤦‍♂️ Told him stop playing games, go to macrumors forums, there is a 15 page thread, forward it to apple asap!!!

He forwarded the entire thread to apple engineers.
Are you joking? Hahah

Were you able to mention this infamous thread as well?

 
Well, great. The title is still misleading though. But thanks for your service

To sum up it’s easy, if you hard reboot, the system doesn’t update battery percentage correctly anymore afterwards, but only at each reboot, and then stays basically stationary or drops sloooowly

This is my battery graph now, you can clearly see when I reboot and the systems get the new correct percentage (as confirmed by coconut battery when connected to a Mac)

Now I realize this might be happening to others too, which had big leaps in battery percentage when rebooting

Restoring as new doesn't help. Charging to 100% doesn't help

Hope they find a fix in two days or I think I'll be returning mine

90d8e7ed0c759b8f2759e912a3b08b13.jpg
 
Last edited:
Temporarily meaning that if you switch it on again it stops working again?

Thanks though, what a terrible, terrible mistake this was
It will keep working even when you switch OBC back on. The issue returns if you restart the phone, confirming the title of the whole thread. Next I’ll be testing whether the issue persists if you do not turn OBC off and charge to 100, but considering that this is a Pro Max I’ll find out in two days after the next charging session.
 
It will keep working even when you switch OBC back on. The issue returns if you restart the phone, confirming the title of the whole thread. Next I’ll be testing whether the issue persists if you do not turn OBC off and charge to 100, but considering that this is a Pro Max I’ll find out in two days after the next charging session.

Ok, but only an hard reboot triggers it in the first place, mine was working fine before, this is why the title is misleading and this was confirmed by the confusion in the first pages of the thread
 
Does the issue start when you do a normal shutdown or a hard shutdown?

If you’ll never hard reboot you’re safe. The first time you hard reboot the phone is done

Also mine is a regular 13 Pro. I think this issue might affect all the line
 
I don’t think I have done a hard shutdown. I wonder if a DFU would correct the issue once you have it. A DFU reloads all of the OS, so in theory that might just clear the corruption.
 
This sounds like it’s a returning iOS bug that happened a few patches ago:



I wouldn’t worry too much about this as it’ll be fixed in a patch at some point.
That is a bit different issue.
 
Are you joking? Hahah

Were you able to mention this infamous thread as well?

Not going there, they ran a diagnostic test last time, lmao!
 
Ok, but only an hard reboot triggers it in the first place, mine was working fine before, this is why the title is misleading and this was confirmed by the confusion in the first pages of the thread
Nope. All I did were normal run of the mill slide-to-power-off shutdowns. They all triggered the issue.
 
There is a thread on reddit where one of the posters who has encountered the issue says this:
I may be onto something. Turning off Optimized Battery Charging and charging the phone made the needle move again. I will report back in a few hours after unplugging the phone whether this has fixed the problem.

This has fixed the problem but only temporarily. This state is unstable - restart once and you're back to square one with a phone whose battery percentage does not update.

I found a temporary solution. Turning off Optimized Battery Charging (OBC) then charging will move the needle again, and after unplugging the device will return to normal. I’ll report this bug to Apple via Support.
 
I don’t think I have done a hard shutdown. I wonder if a DFU would correct the issue once you have it. A DFU reloads all of the OS, so in theory that might just clear the corruption.

I might try that tomorrow. My only fear if there’s something else to do to “recalibrate” the battery. Maybe some device they only have in an Apple Store, dunno
 
Nope. All I did were normal run of the mill slide-to-power-off shutdowns. They all triggered the issue.
I have done a lot of normal restarts on my phone and the issue did not get triggered. I don't believe I have tried a hard shutdown and I don't think I will try.
 
  • Like
Reactions: Boardiesboi
Nope. All I did were normal run of the mill slide-to-power-off shutdowns. They all triggered the issue.

Then sorry, this is new to me. I soft rebooted normally before with no problems. This is a weird problem
 
Something too get clarified here. When you have the issue and you charge your phone, do you see the battery percentage go up?
 
Yep, then it doesn’t go down again, gets stuck in battery gate mode 🤦‍♂️

Apple engineers are reading this thread as we speak. 😁
Are you saying that if you charge the phone when the battery percentage is stuck on lets 85 and you charge the phone to 90. Once you take the phone off the charger the battery will start dropping normally and get stuck at 85 again?

EDIT: You mean it goes up but doesn't come down again? So the battery charged to 100% will be stuck at 100%.
 
I am using a 12 watt charger. I use the Wemo HomeKit smart plug. I created a Shortcut automation to turn off the charger when it reaches 85%. This way I don’t have to worry about leaving it connected to the charger over night.
Thanks for this. Apparently I purchased this same exact one last year just so that I can use home to have it automatically set to ON at a certain time of day to begin charging and also set to off at a certain time. I knew about the shortcut but I've been lazy. I just saw your set up and I also set up the Shortcut automation to turn off the Smart plug when phone reaches 85%.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.