Optimized Battery Charging reduces battery aging by learning your daily charging routine. It waits to finish charging past 80% until you need to use it.
How to Enable It
- Go to Settings.
- Tap Battery.
- Tap Battery Health & Charging.
- Toggle Optimized Battery Charging ON.
Why does my phone stop charging at 80%?
If this feature is on, your iPhone may pause charging at 80% overnight and finish the last 20% right before you wake up. This prevents the battery from sitting at 100% voltage for hours, which degrades chemical health.
