My watch will no longer charge above 80%. Watch has OS27 installed. I put my watch on the charger at night and normally it is showing 100% by morning. While on the charger the amount charged ring has a small line at the 80% mark. I've not seen this before. Is this something new with watchOS27?
Apple Watch Series 11 battery not charge above 80%
Posted on Sep 28, 2026 5:56 AM