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Re:Why Apple Uses JPEG XL in the iPhone 16 and What It Means... by Asmod4n on Friday September 20, 2024 @06:29AM (#41600525)
By default all iPhones stop charging at 80%
Re:Why Apple Uses JPEG XL in the iPhone 16 and What It Means... by tzs on Friday September 20, 2024 @06:41AM (#41600602)
The "stop at 80%" option is 15 and later.

I think you are thinking of the "optimized charging" option, which tries to guess how long you will be leaving the phone on the charger and then pauses when it reaches 80% until it gets near the time it thinks you are going to take the phone off the charger and then charges up to 100%.