Overview

• The feature is available on iPhone 15 Pro and newer models, but it is only auto-enabled on the iPhone 17 family and iPhone Air and must be toggled on manually in Settings > Battery > Power Mode on older compatible phones.
• Adaptive Power makes modest adjustments such as about a 3% reduction in screen brightness, limiting background activity and light performance tuning, and it automatically enables Low Power Mode at 20% battery.
• Apple says the system requires roughly seven days of background learning before it delivers its full effect based on recent usage patterns.
• Users receive a notification when Adaptive Power turns on to extend runtime, with notification preferences controlled in the Battery settings.
• Coverage notes that default enablement may influence how Apple’s battery-life claims are interpreted, with the ultra-thin iPhone Air likely to benefit most.