Battery menu on the Google Pixel 6a
Justin Duino / How-To Geek
Battery settings and options can be found on Android devices by going to Settings > Battery > Battery Usage, or Settings > Battery and Device Care > Battery on Samsung Galaxy devices. The tools here will show you the apps using battery, help you configure your phone for improved battery life, and show you battery health details.

Android devices have pretty good battery life nowadays, but there are still things you can do to maximize it. Finding what’s eating up the battery and stopping it, along with other tips, will help your phone or tablet last longer.

What is Draining My Android Battery?

Battery usage per app can be found on Android devices by going to Settings > Battery > Battery Usage, or Settings > Battery and Device Care > Battery on a Samsung Galaxy device.

First, swipe down once or twice—depending on the Android device—and tap the gear icon.

Now go to Battery > Battery Usage.

Select "Battery" then "Battery Usage."

Here’s where you can see apps that are using the most battery since the last charge, as indicated by the percentage.

Battery usage in apps.

Scroll down to the bottom to see system app usage.

System app battery usage.

With a Samsung Galaxy device, you can see the same list by going to Settings > Battery and Device Care > Battery.

Samsung battery settings.

You’ll see the first three apps in the list on this page, but you can tap “View Details” to see the full rundown.

Tap "View Details."

This is the easiest way to spot apps that are using more battery than they should. If you find an app is using more battery than you think it should, you can try to find a “Lite” version of it.

How to Stop Apps From Draining Battery on Android

Android apps can be put into three battery optimization modes—Unrestricted, Optimized, and Restricted—those modes can be switched from the app’s information page in the Settings app.

First, open the Settings and go to the “Apps” section and select an app from the list.

Go to "Apps" and choose an app.

Now select “Battery” or “App Battery Usage.”

Select "App Battery Usage."

Here’s where you’ll see three optimization modes. Choose one of the following:

  • Unrestricted: Allow battery usage in background without restrictions. May use more battery.
  • Optimized: Optimize based on your usage. Recommended for most apps.
  • Restricted: Restrict battery usage while in background. App may not work as expected. Notifications may be delayed.

Android battery modes.

Apps that have been draining your battery should be put into the “Optimized” or “Restricted” mode. Just keep in mind that restricting app’s battery usage can have annoying consequences.

How to Turn on Battery Saver on Android

You can configure Android’s “Battery Saver” or “Power Saving” feature by going to Settings > Battery > Battery Saver, or Settings > Battery and Device Care > Battery > Power Saving on a Samsung Galaxy device.

First, open the Settings and go Battery > Battery Saver.

Go to "Battery" then "Battery Saver."

On a Samsung Galaxy device, open Settings and go to Battery and Device Care > Battery.

Samsung battery settings.

You can immediately turn Battery Saver or Power Saving on by toggling the switch.

Turn on battery saver and power saving.

There are also a number of options for automatically enabling the battery saver mode on a schedule, and Samsung even lets you choose what it does.

Battery saver options.

It’s a good idea to use battery saver modes when your device gets around 25% or less. The feature is not intended to be on at all times.

How to Show Battery Percentage on Android

You can enable the battery percentage in numbers on an Android device from Settings > Battery > Battery Percentage, or Settings > Notifications > Advanced Settings > Show Battery Percentage on a Samsung Galaxy device.

Here’s what the toggle looks like on a Samsung Galaxy device.

Turn on "Show Battery Percentage."

And here’s the same setting on a Google Pixel phone.

Toggle on the "Battery Percentage" option.

These methods apply to most Android devices, but some phones and tablets are slightly different. Simply do a search in the Settings app for “battery percentage” to see where the setting is located.

How to Check Battery Health on Android

To check your battery health on a Samsung Galaxy phone, go to Settings > Battery and Device Care > Diagnostics > Battery Status. On other Android phones, dial *#*#4636#*#* in the Phone app, or you can use a third-party app.

Samsung makes it easy to keep an eye on battery health. First, swipe down from the top of the screen once and tap the gear icon to open the Settings.

Next, scroll down and go to “Battery and Device Care.”

Select "Battery and Device Care."

Now select “Diagnostics.”

Select "Diagnostics."

This will open the Samsung Members app with a bunch of icons for things you can check. Tap the “Battery Status” icon (you won’t see a checkmark if you haven’t done this already).

The “Life” reading is what refers to the health of your battery. It will either be “Good,” “Normal,” or “Weak.”

Battery stats.

If you don’t have a Samsung Galaxy device, you can try using Android’s hidden diagnostic menu. Open the Phone app and enter *#*#4636#*#*. A “Testing” menu will appear with a “Battery information” section. You’ll see the battery health listed there.

If that didn’t work—it probably won’t—you can turn to a third-party app. A great app to try is AccuBattery.

AccuBattery on the Google Play Store.

Unfortunately, AccuBattery can’t access past information on your battery. It will start recording data immediately after you install it. After a few charge/discharge cycles, you’ll be able to see a reading for battery health.

Health reading.

Battery health is not something you need to worry much about, but it can be nice to know your battery is still working as it should.

RELATED: How to Check Battery Health on Android

Android Phones With the Best Battery Life

The Google Pixel 6 Pro battery menu.
Justin Duino / How-To Geek

Typically, the Android phones with the best battery life are the phones with the biggest batteries. That may seem obvious, but it’s not always an easy choice. Big batteries require big phones, and that may not be your cup of tea.

Sadly, most phones—including Android phones—still need to be charged every day. The only sure-fire way to get better battery life is to get a bigger battery. Check out our Best Android Phones guide for our up-to-date choice for Android phones with the best battery life.

The Best Android Phones of 2023

Samsung Galaxy S23
Best Android Phone Overall
Samsung Galaxy S23
Moto G Play (2023)
Best Budget Android Phone
Moto G Play (2023)
Google Pixel 7a
Best Mid-Range Android Phone
Google Pixel 7a
Samsung Galaxy S23 Ultra
Best Premium Android Phone
Samsung Galaxy S23 Ultra
ASUS ROG Phone 6
Best for Gaming
ASUS ROG Phone 6
Google Pixel 7 Pro
Best Camera Phone
Google Pixel 7 Pro
ASUS Rog Phone 6
ASUS ROG Phone 6
ASUS Rog Phone 6

Thanks to built-in adaptive features, modern Android devices don’t require a lot of intervention from users when it comes to batteries. If you’re having an issue with poor life, then there’s probably a clear reason. Starting with monitoring what’s happening in the background, you should be able to pinpoint what’s going on.

Profile Photo for Joe Fedewa Joe Fedewa
Joe Fedewa is a Staff Writer at How-To Geek. He has been covering consumer technology for over a decade and previously worked as Managing Editor at XDA-Developers. Joe loves all things technology and is also an avid DIYer at heart. He has written thousands of articles, hundreds of tutorials, and dozens of reviews.
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Profile Photo for Cameron Summerson Cameron Summerson
Cameron Summerson is ex-Editor-in-Chief of Review Geek and served as an Editorial Advisor for How-To Geek and LifeSavvy. He covered technology for a decade and wrote over 4,000 articles and hundreds of product reviews in that time. He’s been published in print magazines and quoted as a smartphone expert in the New York Times.
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