Enable optimized or adaptive charging

Turn on your phone's built-in charging optimization feature to reduce time spent at full charge. Both iOS and Android offer software that learns your routine and delays topping off to 100% until just before you typically unplug.

Steps

1. Open your phone's Settings and navigate to Battery or Battery Health
2. Look for Optimized Battery Charging (iPhone), Adaptive Charging (Pixel), or a similar option from your manufacturer
3. Enable the feature and leave it on -- the phone learns your schedule over a few days

Why It Works

Lithium-ion batteries degrade faster when held at 100% for extended periods. These features hold the charge at around 80% overnight and complete the final 20% shortly before your alarm, minimizing time at full voltage.

Tips

• The feature needs a consistent routine to work effectively -- irregular schedules may reduce its accuracy
• Some phones also offer a hard charge limit (e.g., Samsung's Protect Battery caps at 80%) for even more control