Apple said “a very small number” users on Apple Watch Series 5 or Apple Watch SE models have experienced the issue.
Through a support page released on Monday, Apple revealed that “a very small number” of users on the Apple Watch Series 5 or Apple Watch SE models running watchOS 7.2 or watchOS 7.3 have experienced an issue that prevents them from charging after entering Power Reserve.
“To check if your Apple Watch is affected by this issue, place your watch on the charger that you normally use, then wait at least 30 minutes,” the company says.
If your Apple Watch won’t charge, you should contact Apple Support to set up a repair free of charge. It will be a mail-in repair in eligible markets. Also, it is important to note that the company will examine your affected Apple Watch prior to service to verify that it’s eligible for free repair.
For all other users on the Apple Watch Series 5 and Apple Watch SE, Apple has released watchOS 7.3.1 that is designed to prevent the charging issue from happening
How to download watchOS 7.3.1
Apple Watch users can download watchOS 7.3.1 by going to My Watch > General > Software Update from the Watch app available on their connected Apple device. The watch must be connected to its charger and have at least 50 percent of battery to install the update. Alternatively, the new update can be downloaded directly from the Apple Watch.