iPhone shuts down while charging overnight

Hi Rogerloew,

Welcome to Apple Support Communities. We understand that you're having an issue with your iPhone powering off overnight. We'd like to help.

Do you ever charge your iPhone during the day and have this happen? Do you ever see an Apple logo or spinning gear? Unexpected shutdowns can happen for a couple reasons. These steps should help you isolate this issue:

If your iOS or iPadOS device restarts or displays the Apple logo or a spinning gear unexpectedly 

If your iPhone, iPad, or iPod touch unexpectedly restarts or shuts down, or displays the Apple logo or a spinning gear, learn what to do.

1. Check your software

Make sure that your device has the latest version of iOS or iPadOS and that your apps are up to date. If the issue continues after updating your software and apps, check your hardware.

2. Check your hardware

* On an iPhone 6 or later, check your battery health under Settings > Battery > Battery Health.

* If your battery doesn't need service, and your iPhone, iPad, or iPod touch continues to frequently restart or turn off, contact Apple Support.

* If your apps quit unexpectedly, learn what to do.

* If your device has a frozen screen, doesn't respond, or becomes stuck when you turn it on, learn what to do for iPhone, iPad, or iPod touch.

Hope this helps.

Take care!