Making your Android battery last longer: settings that actually help

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Most Android phones can get through a day comfortably, but a few settings and habits make the difference between finishing the evening at a healthy level and hunting for a charger at teatime. Menus vary between makers, so the paths here are general; your phone's settings search will find each one quickly.

Find out what is really using power

Start with the battery usage screen, usually under Settings, then Battery. It lists which apps and parts of the phone have used the most since the last charge.

Screen on top is normal. The display is usually the biggest user.
An app you barely opened near the top is a warning sign. It may be running in the background, holding location or syncing constantly.
Check after a full day of normal use rather than straight after charging.

Screen settings

Turn on adaptive or automatic brightness. Leaving brightness fixed high is one of the commonest causes of short battery life.
Shorten the screen timeout to 30 seconds or a minute.
Use dark mode on an OLED screen. Most mid-range and flagship phones use OLED, where black pixels are switched off and dark themes save some power.
Consider a lower refresh rate. Phones with 90Hz or 120Hz screens use more power at the higher rate. Many offer an adaptive setting that drops the rate when nothing is moving, which is a good middle ground.
Turn off always-on display if you do not use it.

Background activity

Keep Adaptive Battery switched on where your phone has it. It learns which apps you use rarely and limits them.
Restrict misbehaving apps. On an app's battery page you can usually choose between unrestricted, optimised and restricted. Restricted stops most background work; messaging apps you rely on for notifications should stay optimised.
Review location access. Give apps location only while in use, and remove it from apps that do not need it.
Trim notifications and sync. Every push and background sync wakes the phone briefly.
Uninstall apps you no longer use rather than leaving them to update and sync.

Signal and connections

A phone in a weak signal area works harder to stay connected, and this can drain a battery faster than heavy use.

Use Wi-Fi at home and work where it is reliable.
Try switching to 4G in places where 5G coverage is patchy, if your phone allows it.
Use airplane mode in a dead zone, such as a basement or on a long flight.
Leave Bluetooth and Wi-Fi scanning on unless you have a reason to turn them off; their effect is small compared with the screen and signal.

Battery saver modes

Battery saver limits background activity, visual effects and some features. Many phones can turn it on automatically at a set percentage.
Extreme or ultra power saving modes reduce the phone to a few chosen apps and can stretch the last few percent a long way in an emergency.

Looking after the battery itself

Lithium-ion batteries wear faster when kept at full charge, especially when warm.

Use the charging protection setting if your phone has one. Pixel phones offer charging optimisation, including an option to stop around 80 percent; Samsung phones have battery protection options. Google has said its limit still allows an occasional full charge so the percentage reading stays accurate.
Avoid heat. Do not leave the phone in a hot car or charge it under a pillow, and take off a thick case if it gets hot while charging.
Do not worry about occasional top-ups. Modern batteries do not need full discharge cycles.
Check battery health where your phone shows it. If it has degraded significantly, a battery replacement is often far cheaper than a new phone.

Habits that do not help

Constantly closing apps from the recent apps screen usually costs more power, because the phone has to reload them.
Third-party battery saver or cleaner apps rarely do anything the built-in settings cannot, and some add adverts and background activity of their own.

Which setting made the biggest difference to your battery? Share it in the comments.