iPhone 13 battery percentage stuck, only updating value on reboots

My iPhone 13 Pro battery percentage indicator is stuck, and/or very slow to decrease, not following real battery percentage.

Actual battery status is only updated on reboots of the phone. So for example if I reboot after some hours of using the phone the battery will go from like 85% to 60%, because the iPhone couldn't correctly track the battery depletion in the meantime. This is confirmed by briefly connecting the phone on a Mac with Coconut Battery, the reading on phone is higher and way off than the real charge.

A "restore as a new phone" didn't fix it. A restore in DFU mode didn't fix it either, as it didn't charging to 100%. Using iOS 15.0.1. The problem is widespread also on the base and max models, there are multiple reports also on new devices, even if on mine it seemingly started after an hard reboot.

Any chance to fix this?

iPhone 13 Pro

Posted on Oct 5, 2021 10:24 AM

Top-ranking reply

RichLutz

Level 1

12 points

Posted on Oct 17, 2021 2:50 AM

So I’ve managed to fix mine manually here’s what I’ve done :

firstly use the phone and it will start to drop eventually when you get to 35% battery plug it into iTunes and wait till it shows in the menu.

then follow the instructions to restore iOS ( does not wipe data )

this is usually performed by pressing volume up then volume down and then the power button till it goes into a reboot mode can’t remember the exact steps but they are online.

after a while a message pops up on the computer or mac saying restore iOS follow these instructions and let the device do its thing. Once this is completed connect using an approved apple 20watt charger and the original cable for around 3 hours till it shows either 98% or 100.

the device is now repaired and will drop as normal.

be advised however the first 15% does give the impression of a stuck battery however it is not. It is draining all be it very slowly !

not sure how this manages to fix the device but mines been perfect since and had no battery issues at all and easily lasts me longer than 38 hours on a full charge with heavy usage.

it looks like an iOS bug but fixed with an iOS restore.

hope this helps everyone

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iPhone 13 battery percentage stuck, only updating value on reboots

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