Apple said in a support document that “A very small number of customers with Apple Watch Series 5 or Apple Watch SE models running watchOS 7.2 or 7.3 have experienced an issue with their watch not charging after it enters Power Reserve,”.
Apple has released watchOS 7.3.1 on Monday. This update could help fix the issue that prevents some Apple Watch Series SE or 5 smartwatches from charging during the battery-saving Power Reserve Mode. And if it doesn’t work in the recent update for at least 30 minutes, you can contact Apple Support to set up a free mail-in repair, then they will have to inspect your watch to “verify that it is eligible for repair”.
The watch OS 7.3.1 update is available now for download.
If your Apple Watch won’t charge after the latest update, Apple will repair it for free
