How to see which apps and features are using your battery
Android keeps a record of what drained your battery since the last full charge. You can see this list in your phone's settings—it shows you the percentage each app or feature used, ranked from highest to lowest. The apps at the top are usually the culprits.
Open Settings, then go to Battery or Battery and device care (the exact name varies by phone maker). Look for Battery usage or Power usage. You'll see a list of apps with percentages. Tap any app to see more detail about how it was running—whether it was on-screen, in the background, or both.
Some phones also show a breakdown by feature: screen brightness, cellular radio, GPS, Bluetooth. These tell you whether the drain came from an app or from how your phone was configured. A screen that was on for six hours will always be at the top, which is normal. What matters is whether something unexpected appears there.
Key Takeaways
- Your phone's battery settings show which apps used power since the last full charge, ranked by percentage.
- An app using 30% of battery is only a problem if you didn't use it for 30% of the time—compare usage time to battery percentage.
- Background activity, location services, and screen brightness drain battery even when you're not actively using the phone.
- Uninstalling an app or turning off a feature will only help if that app or feature actually appears in your battery usage list.
- Battery drain that started suddenly often points to a recent app update, a new app, or a change in your settings rather than a hardware failure.
Apps that are supposed to use a lot of battery
Some apps naturally drain battery fast because of what they do. Maps and navigation use GPS constantly, which is power-hungry. Video streaming apps, music apps, and games keep your screen on and processor working hard. Social media apps that refresh feeds in the background, messaging apps that sync constantly, and fitness apps that track your location all use significant power.
If you see YouTube, Spotify, Google Maps, or a game at the top of your battery list and you used it for hours, that's expected. The question is whether the percentage matches the time. If you used YouTube for 10% of the day but it shows 40% battery use, something is wrong. If you used it for 40% of the day and it shows 40% battery use, that's normal.
Work email apps, banking apps, and messaging apps that sync in the background can also show high numbers if they're constantly checking for new messages or updates. This is usually fine, but if an app you barely touched shows up in the top three, that's worth investigating.
Background activity and location services
Apps can drain battery in the background even when you're not looking at them. An app with permission to use your location will keep your GPS radio on. An app with permission to access your contacts or calendar will sync data regularly. A messaging app with notifications enabled will wake your phone to check for new messages.
Go to Settings > Apps (or Applications), find an app that's draining battery, and tap it. Look for Permissions. You'll see which permissions it has: location, contacts, calendar, camera, microphone, and others. If an app has location permission but doesn't need it—like a flashlight app or a note-taking app—you can revoke it. Tap the permission and change it to Don't allow or Allow only while using the app.
Location services in particular drain battery fast. Go to Settings > Location and turn it off entirely if you don't need it, or set it to Battery saving mode instead of High accuracy. High accuracy uses GPS, cellular, and Bluetooth together to pinpoint your location. Battery saving uses only cellular and Bluetooth, which is slower but uses less power.
Screen brightness and display settings
Your screen is usually the biggest battery drain on any phone. If your brightness is set to maximum all day, your battery will empty faster than if it's set to 40%. The same is true for screen refresh rate—phones with 120 Hz or 144 Hz displays use more power than phones with 60 Hz displays.
Go to Settings > Display and look for Brightness. Turn on Adaptive brightness or Auto brightness so your phone adjusts brightness based on the light around you. If your phone has a Refresh rate setting, you can lower it from 120 Hz to 60 Hz to save battery. You'll notice the screen looks slightly less smooth, but the battery savings are real.
Also check how long your screen stays on before it locks. Go to Settings > Display > Screen timeout and set it to 30 seconds or 1 minute instead of 5 or 10 minutes. Every second the screen is on uses power.
Recent app updates and new apps
If your battery drain started suddenly—not gradually over months, but within the last week or two—the cause is usually a recent app update or a new app you installed. App updates sometimes introduce bugs that cause an app to run constantly in the background or use the processor more than it should.
Check your battery usage list and look for any app you recently updated or installed. If you see it using an unusually high percentage, try uninstalling the app or rolling back the update. To roll back an update on most Android phones, go to Settings > Apps, find the app, tap the three-dot menu, and select Uninstall updates. This reverts the app to the version that came with your phone. You can update it again later if the problem is fixed.
If uninstalling or rolling back doesn't help, the problem may be with your phone's system software rather than an app. Check Settings > About phone > Software update to see if an update is available. System updates sometimes fix battery drain bugs.
Syncing, notifications, and connectivity
Syncing is when your phone automatically uploads or downloads data from the internet—email, calendar events, photos, messages, and more. If you have many accounts syncing constantly, your phone's radio is always on, which drains battery. The same is true for notifications: every time an app checks for a new message or alert, it wakes your phone and uses power.
Go to Settings > Accounts and look at which accounts are syncing. Tap each one and turn off syncing for things you don't need—like syncing photos from a social media app, or syncing calendar events from multiple accounts. You can also go to individual apps and turn off notifications. Open Settings > Apps, find the app, tap Notifications, and toggle them off or set them to Silent.
Bluetooth and Wi-Fi also drain battery when they're on, even if you're not actively using them. If you don't need them, turn them off. If you do need them, make sure your phone isn't trying to connect to old networks or devices. Go to Settings > Bluetooth or Wi-Fi and remove any devices or networks you no longer use.
When to suspect a hardware problem
Most battery drain is caused by apps, settings, or features you can control. But sometimes the battery itself is failing, or the phone's charging circuit is broken. If your battery usage list shows nothing unusual—no app above 15%, no feature using excessive power—but your battery still drains in a few hours, the problem is likely hardware.
A battery that's more than three or four years old naturally holds less charge. If your phone is that old and you've tried the steps above, the battery may straightforward need replacement. Some phones let you replace the battery yourself; others require a repair shop. Check your phone's manual or search for "[your phone model] battery replacement" to find out which applies to you.
If your phone is newer and the battery drains even when it's off or in airplane mode, the charging circuit or battery itself may be faulty. This is a hardware problem that requires professional repair or replacement. Contact the phone maker's support line or visit an authorized repair shop.
Frequently Asked Questions
Why does my battery drain faster in cold weather?
Lithium batteries work less efficiently when they're cold. Your battery may show the same percentage of charge, but it has less usable power. This is temporary—the battery will work normally again when it warms up. If your phone shuts down in the cold even though the battery shows 20%, this is normal battery behavior, not a defect.
Is it bad to let my battery drain all the way to zero?
Letting a lithium battery fully drain regularly can shorten its lifespan over time. It's better to charge it when it reaches 20% or 30%. However, doing it occasionally won't cause when ready damage. If you're seeing fast drain, the cause is almost always an app or setting, not how you charge.
Will turning on battery saver mode really help?
Yes. Battery saver mode (called Low power mode or Power saving mode depending on your phone) limits background activity, reduces screen brightness, and slows the processor. It typically extends battery life by 20% to 40%. You can turn it on manually or set it to turn on automatically at a certain percentage.
Can a virus or malware drain my battery?
Malware can cause battery drain, but it's rare on Android if you only install apps from Google Play Store. If you're concerned, run a scan with Google Play Protect (built into most Android phones). Go to Settings > Security > Google Play Protect and tap Scan. If nothing shows up in your battery list that you don't recognize, malware is unlikely.
Should I close apps running in the background to save battery?
Closing apps manually doesn't save much battery because Android automatically stops apps you're not using. The exception is if an app is stuck and won't stop running—you'll see it at the top of your battery list using power even though you haven't opened it in hours. In that case, force-close it: go to Settings > Apps, find the app, and tap Force stop.