Why does my phone battery drain so fast?

Common reasons include:

• High screen brightness and long screen-on time.
• Apps running in the background, especially social media, maps and games.
• Weak network signal, which makes the phone work harder.
• Location, Bluetooth and Wi-Fi always on.
• An ageing battery, since lithium-ion batteries lose capacity over time.

Tips: lower brightness, use dark mode on OLED screens, restrict background activity for heavy apps, keep software updated and use battery saver mode. Avoid extreme heat. If your battery health is very low, replacing the battery at an authorised service centre can make the phone feel new.