How to make your Apple Watch fully charge in watchOS 10
In watchOS 10, your Apple Watch will pause charging at 80% to prolong the battery’s lifespan. Here’s how you can disable Optimized Charge Limit and charge your watch to full capacity when you need to.
Optimized Charge Limit in watchOS 10
“A battery’s lifespan is related to its chemical age, which is more than just the length of time since the battery was assembled,” mentions Apple on their website. “A battery’s chemical age results from a complex combination of several factors, including temperature history and charging pattern.”