I was experiencing the exact same issue and tried the solution above which appears to have worked, at least for now.
There are some additional data points related to model / OS version etc. and my history related to this issue which may be worth mentioning;
- Model Name: iPad mini 4
- Capacity: 128 GB
- Model Number: MK9N2LL/A
- iOS version: 14.3 (18C66)
The crashes began after updating to version 14 of the OS earlier in 2020, although I can’t say how long after, (it may have been after a sub-version release). Initially the crashing was intermittent which led me to believe that it was application related but eventually it became clear that it was the OS. The symptoms didn’t include the battery issue above initially. When the battery issue began I ran a backup and restore, which didn’t solve anything. I then did a factory reset and restore which appeared to work for a couple of months. I began having the problem again a few days ago (it’s now Jan 12, 2021) which brought me to this page.
2 thoughts - 1) Why does this solution work? I mean, if it solves the problem that’s great but I’d still like to know wtf is going on in my device so I can possibly prevent a recurrence or at least protect myself from data loss or security related concerns. 2) I agree with Jake’s comment above. This is clearly a software or firmware issue, and as such, Apple needs to address it.
iPad Pro Shuts down when charged to 100%
SOLUTION FOR ME- once i pad is charged 100% a- enter your passcode- FIRST thing, put it onto AIRPLANE MODE, put BLUTOOTH OFF and even put off WiFi if possible and use ipad for 2-3 minutes.
Then only start using ipad with Blu-tooth, cellular or WiFi functions.
(IMO might be, as soo. As the system starts, it tries to hit blutooth or cellular functions and it might be impacting the battery function)
by pkur
I know this is over a year old, but try calling Apple and diagnose it to see if your battery is at 80% health according to them. If it is, they’ll replace your entire iPad with a brand new one for $99 plus tax out of warranty. I highly recommend if you still enjoy your current iPad model and want to keep using it without a problem.
by Carlos Gonzalez
Mine needed rebooting a few times before it stayed on after a 100% charge and showed the plug it in graphic when I tried to turn it on. But when it stayed on the battery was fine for a few days so clearly not a battery issue. The fix is book an appointment with an Apple genius at an Apple store and say the recent update has screwed the battery firmware calibration. The appointment arrives by email suggesting back it up and make sure it’s up to date (but auto updates was on). So plugged it in for a really long update installation (so long I had to cancel my appointment) but surprise surprise problem fixed!!
Apple trying to sell more iPads again!
by Malcolm Short