How to Check Which Apps Are Draining Your Battery on Android

Your battery was fine last month, and now your phone is hunting for a charger by mid-afternoon. You have not changed how you use it, so something in the background has changed.

Usually, it is one or two apps. A social app syncing constantly, a game running after you closed it, or an update that introduced a bug can quietly drain hours of battery.

This guide shows you exactly how to find the culprit on Pixel, Samsung, and Xiaomi phones, how to read the numbers properly, and what to change so the drain actually stops.

Quick Answer

Go to Settings > Battery > Battery usage (Samsung: Settings > Battery > View details) and check the list since last full charge. The app at the top using the most percentage — especially with high background time — is your drainer. Restrict its background battery use, update it, or uninstall it.

How to Check Battery Usage on Pixel and Stock Android

Pixel phones give a clear breakdown, but you need to look in the right time window to get a useful answer.

Steps

1. Open Settings > Battery > Battery usage.
2. Make sure the view shows usage since last full charge. If you only charged to 60 percent, the list covers a shorter, less useful period.
3. Read the list from the top. Apps are sorted by battery used, with the biggest drainer first.
4. Tap any app to see its foreground time, background time, and total screen-on impact.

Charge to 100 percent, use the phone normally for a day, then check before plugging in again. That gives the most honest ranking of what really drains you.

How to Check Battery Usage on Samsung Galaxy Phones

Samsung tucks the detailed list one level deeper in One UI, but its background information is excellent once you find it.

Steps

1. Open Settings > Battery, or Settings > Battery and device care > Battery on older One UI.
2. Tap the battery graph or View details to open the usage list.
3. Tap an app to see foreground, background, and active use times.
4. On the same screen, set background usage limits — Unrestricted, Optimised, or Restricted — for that app.

Samsung also has a separate sleeping apps system. Go to Settings > Battery > Background usage limits to put rarely used apps to sleep automatically.

How to Check Battery Usage on Xiaomi, Redmi, and Poco

Xiaomi shows both software and hardware drain, which helps you separate an app problem from a screen or signal problem.

Steps

1. Open Settings > Battery.
2. Check the ranking under the battery graph for the apps using the most power.
3. Tap an app for detail, including CPU and background time.
4. Use the Battery saver and per-app controls on that screen to restrict background activity.

If hardware like Screen or Android System dominates on every brand, the issue may not be a single app. Read the next section before blaming the top app.

For more power-saving walk-throughs, browse our Android tips and guides at Network Ustad for your exact model.

How to Read the Numbers Like an Expert

The percentage alone does not tell the whole story. A video app using 20 percent after three hours of watching is normal. A weather app using 15 percent while you never opened it is not.

Compare foreground time with background time. High background time for an app you barely use is the clearest sign of a drainer that needs restricting.

Also watch Android System, Android OS, and Google Play services. If those sit at the top, the cause is often poor signal, constant location checking, or many apps syncing at once — not one villain app.

Google explains how the usage screen is calculated in its official Android Help guide to adaptive battery and battery usage. The key point is to judge usage against how long you actually used the app.

What to Do About the App Draining Your Battery

Finding the culprit is only half the job. Work through these actions in this order, because the first ones are reversible and safe.

Step-by-step fixes

1. Update the app: Open Play Store, tap your profile, then Manage apps, and update the app. Battery bugs are often fixed within days.
2. Restrict background battery: In the app’s battery page, choose Restricted or Optimised instead of Unrestricted.
3. Cut its permissions: In Settings > Apps > the app > Permissions, remove Always-on location if it only needs location while in use.
4. Clear its cache: In Settings > Apps > the app > Storage, tap Clear cache. This does not delete your data.
5. Replace or uninstall it: If drain continues after a week, uninstall it or switch to a lighter alternative or its website version.

Do not restrict messaging, banking security, alarm, or navigation apps you rely on for timely alerts. Restricting them can delay messages and break reminders, which is worse than the battery saving.

Apps and Settings That Commonly Drain Battery

Social media and short-video apps are frequent offenders because they preload video and refresh feeds in the background. Turning off autoplay and background refresh inside the app itself helps a lot.

Free VPNs, cleaner apps, and live wallpaper or widget packs also drain more than people expect. If one of these sits high in your list, question whether you need it at all.

Poor mobile signal is a hidden drainer. In a weak-signal area, your phone boosts power to hold the connection, and Mobile network or Android System rises in the list. Using Wi-Fi at home reduces that drain noticeably.

Use Adaptive Battery and Battery Saver Properly

Adaptive Battery learns which apps you use rarely and limits them automatically. It needs a few days to learn, so a brand-new phone may look worse before it improves.

1. Go to Settings > Battery > Adaptive preferences and turn on Adaptive Battery. On Samsung, this sits under Battery > More battery settings as Adaptive battery.
2. Turn on Battery Saver manually on long days, or set it to switch on at 20 or 30 percent automatically.
3. Review the auto-sleep list once a month, so an important app has not been put to sleep by mistake.

Battery Saver reduces background sync and visual effects. It is great for getting home, but do not leave it on permanently, or emails and messages will arrive late.

How to Tell If Your Battery Itself Is Wearing Out

Sometimes no single app is to blame. If every app’s usage looks normal but the total still falls fast, the battery’s health itself may have declined.

Signs include the percentage dropping in big jumps, the phone shutting down at 15 percent, or noticeable swelling or heat. Samsung members can run a battery diagnostic in the Samsung Members app under Diagnostics.

Most phone batteries age noticeably after two to three years of daily charging. At that point, a battery replacement restores far more life than any settings change can.

Samsung details its battery health and limit options in its Samsung support guide to Galaxy battery settings for Galaxy owners who want brand-specific checks.

Common Mistakes and Tips

The biggest mistake is force-stopping or “boosting” apps all day with cleaner apps. Android restarts important apps automatically, and the restart cycle often uses more battery than leaving them alone.

Another mistake is judging the list after a partial charge or a single hour. Always judge since last full charge, after a normal day, or you will chase the wrong app.

Tip: screenshot your battery usage list on a bad day and again a week after your fix. Comparing the two screenshots proves whether your change worked, instead of guessing from memory.

Also lower screen brightness or use adaptive brightness, and shorten screen timeout in Settings > Display. The screen is a top drainer on almost every phone, even when no app is misbehaving.

Conclusion

Checking which apps use the most battery takes one minute in Settings > Battery > Battery usage. The skill is in the reading — compare background time with how much you actually used the app.

Update or restrict the true drainer, leave essential apps alone, and give Adaptive Battery time to learn. If the drain is even across everything, check signal and battery health. In most cases, one app was the whole story all along.

Frequently Asked Questions

Why is an app I never open using so much battery?

It is working in the background — syncing, checking location, or refreshing content. Open its battery detail page to confirm high background time, then set it to Restricted, remove always-on location, or uninstall it if you do not need it.

What is a normal battery percentage for the top app?

There is no single normal number. Judge it against use. A maps or video app at 20 percent after hours of use is normal. A simple utility at 15 percent with almost no foreground time is a problem worth fixing.

Should I keep Battery Saver on all the time?

No. Battery Saver delays background sync, so messages and emails can arrive late. Use it on long days or set it to turn on automatically at a low percentage, and leave it off for normal daily use.

Does closing apps from the recent apps screen save battery?

Usually not. Android manages recent apps efficiently, and reopening a fully closed app from scratch often uses more power. Only force-stop an app that is clearly stuck or draining, and do it from its Settings page.

Why did my battery get worse after a system update?

After an update, the phone re-indexes files, re-learns Adaptive Battery patterns, and updates apps in the background for a day or two. If drain is still bad after three days, check the usage list for one app that changed, and update or restrict it.