Watch Ultra 2 charging to 100% every time even with charge limit turned on ever since upgrading to watchOS 26

Upgraded my Apple Watch Ultra 2 to watchOS 26 and now it charges to 100% on every charge even with the charge limit turned on. Had no issues with it charging to 80% before.

Apple Watch Ultra 2, watchOS 26

Posted on Sep 26, 2025 8:56 AM

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4 replies

Sep 26, 2025 12:14 PM in response to MikeFrench81

As far as I remember, my Apple Watch Ultra 2 never stopped at 80%, although the Optimized Charging Limit is enabled. I'm only charging my watch every 2-3days when it reaches 20% or less. And my watch somehow learned, that I need it to be charged up to 100%


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Your Apple Watch takes time to learn your charging patterns before it uses Optimized Battery Charging or Optimized Charge Limit. If your watch is new, the charging screen will say Charging to full. Optimized Charge Limit changes dynamically depending on how you use your watch. Based on your usage patterns, your watch might charge to 100% on some days, and less on others.

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copied from: About Optimized Battery Charging on Apple Watch - Apple Support



Sep 26, 2025 2:40 PM in response to MikeFrench81

Yes, the action is optimised charging, only latest iphones have an actual charge limit setting.

Optimised charging will either stop at 80% til the small hours then go to 100, or it will go straight to 100% if you dont regularly charge it every night before bed and put it on in the morning Optimised charging needs to learn from your regular habits

Watch Ultra 2 charging to 100% every time even with charge limit turned on ever since upgrading to watchOS 26

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