iPhone battery tips focus on settings, not closing apps

Closing unused iPhone apps is unlikely to improve battery life, because suspended apps are not generally the main cause of drain. Apple’s guidance and the article’s suggestions focus instead on adjusting display, connectivity and background activity settings to reduce power use.

You can disable Background App Refresh and restrict apps’ location access, use auto-brightness, and keep Wi-Fi on because cellular connections use more power. Other options include turning off Always-On Display, using Dark Mode on OLED models, or limiting the refresh rate, though that may make scrolling feel less smooth. Adaptive Power and Low Power Mode can reduce drain, while Optimized Charging or an 80 per cent charge limit can help slow battery wear; keeping charge roughly between 20 and 80 per cent may also extend battery lifespan.