How to Make Your Phone Battery Last Longer: 12 Simple Tips

Few things are more annoying than a phone that dies halfway through the day. The good news is that most battery problems can be reduced with a few settings and better charging habits. You do not need to buy anything.

This guide is split into two parts: tips that make your battery last longer during the day, and habits that keep your battery healthy for years. The menu names are slightly different on each phone, but you can find most settings by searching for them in your phone's Settings.

Part 1: Make Your Battery Last Through the Day

1. Lower the Screen Brightness

The screen is usually the biggest battery user. Turn brightness down, or switch on auto-brightness so the phone adjusts for you. Also shorten the screen timeout so the display turns off quickly when you stop using it.

2. Use Dark Mode

On phones with an OLED screen, dark backgrounds use less power because black pixels are switched off. It also feels easier on the eyes at night. On other screen types, the saving is small.

3. Turn On Battery Saver or Low Power Mode

Both Android and iPhone have a mode that reduces background activity and some visual effects. Use it when your battery is getting low, or set it to turn on automatically at a level such as 20%.

4. Check What Is Using Your Battery

Open Settings > Battery and look at the usage list. If one app uses far more than you expect, restrict its background activity, update it or uninstall it.

5. Limit Background App Refresh

Many apps keep updating in the background even when you are not using them. Turn this off for apps that do not need it, such as shopping or game apps.

6. Turn Off Location for Apps That Do Not Need It

Constant GPS use drains the battery. Set location access to "While using the app" or "Never" for most apps.

7. Reduce Unneeded Notifications

Every notification can wake up your screen. Turn off alerts from apps that are not important.

8. Use Wi-Fi When You Can, and Avoid Weak Signal

When the mobile signal is weak, your phone works harder to stay connected and uses more battery. Wi-Fi is usually gentler on the battery than mobile data. In areas with poor coverage, airplane mode can save a lot of power while you do not need calls.

9. Be Careful With 5G

On some phones, 5G can use more power, especially where the signal is weak. If your phone offers a setting such as "Auto" or "Prefer 4G", try it and see if your battery improves.

10. Keep Your Phone and Apps Updated

Updates often include battery and performance fixes, and they also fix security problems. See our guide to protecting your online accounts for more on staying secure.

Part 2: Keep Your Battery Healthy for Years

11. Avoid Extreme Heat

Heat is a battery's biggest enemy. Do not leave your phone in a hot car, under a pillow while charging or in direct sunlight. Taking off a thick case during charging can help if the phone gets hot.

12. Use Smart Charging Habits

Most phones use lithium-ion batteries, which last longer if you avoid the extremes:

• Try not to let the battery drop to 0% often.
• If you can, keep it roughly between 20% and 80% during the day. It is fine to charge to 100% when you need a full day.
• Turn on optimized or adaptive charging if your phone has it. It slows charging near the end, so the battery does not sit at 100% all night.
• Use a good-quality charger and cable from a trusted brand. Very cheap chargers can damage the battery or even be unsafe.

Myths About Phone Batteries

• "Closing all apps saves battery." Usually not. Apps that are paused in the background use very little power, and reopening them from scratch can use more.
• "Charging overnight ruins the battery." Modern phones stop charging when full. The real risk is heat and sitting at 100% for many hours, which smart charging helps with.
• "Wireless charging is bad." It is convenient, but it can create a bit more heat than a cable, so use it on a cool surface.

How to Check Your Battery Health

• iPhone: Go to Settings > Battery > Battery Health & Charging to see the maximum capacity.
• Android: Newer versions and some brands show battery health in the Battery section of Settings or in the maker's own app. If your phone does not show it, a service center can test it.

When the maximum capacity falls to around 80% or lower, or the phone shuts down suddenly, a battery replacement at an authorized service center is often cheaper than buying a new phone.

Frequently Asked Questions

How long should a phone battery last?

Most batteries stay in good shape for a couple of years of daily charging, then slowly lose capacity. How fast depends on heat, charging habits and usage.

Is it bad to use the phone while charging?

Light use is fine, but heavy use such as gaming while charging creates heat, which is not good for the battery.

Does a screen protector or case affect the battery?

Not directly. A thick case can trap heat while charging, which is the only real concern.

Final Thoughts

You do not need to do everything on this list. Start with three easy changes: lower brightness, turn on battery saver when needed and avoid heat. Then build better charging habits, and your battery will serve you well for longer.