When Optimized Battery Charging is on, your iPhone won't fully charge until you need to use it, keeping the battery healthy.

Modern smartphones can safely stay plugged in overnight, but temperature and charging habits still affect long-term battery ...

Learn how to charge your iPhone the right way with iOS 26 features to maximize battery life and protect your device’s ...

Discover why your Apple Watch stops charging at 80% and how optimized battery charging protects your device’s battery health.