"Apple's Battery Health Options Limited to iPhone 15 Models in iOS 17.1 Beta, Leaving Older Devices Behind"
Apple's new battery health options, including Optimized Battery Charging, 80% limit, and None, are currently exclusive to the iPhone 15 models and not available on older iPhone models. The features were not seen in the iPhone 14 lineup or earlier versions in the latest iOS 17.1 Beta. It is possible that these features may be added to older models in a later update, but if not, users will need to opt for authorized battery replacements to access the new features.