Why Is My Samsung Galaxy Battery Draining So Fast? (And How to Fix It)

Why Is My Samsung Galaxy Battery Draining So Fast? (And How to Fix It)

Struggling with fast battery drain on your Samsung Galaxy

Sep 24, 2025
6 min read

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My Samsung Galaxy phone battery drains way too fast. Even on standby, it loses a lot of charge. Does anyone know how to fix this?

This is a common issue for many Samsung Galaxy phone users. If your device also shows “No SIM card detected,” see our troubleshooting guide. Below are steps you can take to fix battery drain.

We've spent over 10 years making tech easier to understand. Our guides are clear, honest, and tested by real users like you.

Why Is My Samsung Galaxy Battery Draining So Fast & How To Fix It

1. Check Battery Usage and Health

  • Go to Settings > Battery and device care > Battery.
  • Tap the chart icon or battery usage to see which apps or system features are consuming the most power.
  • Update or remove apps that are using unusually high power or behaving abnormally.

2. Close or Restrict Background Apps

Background apps, especially those that refresh data often, contribute heavily to battery drain. Instead of manually closing, restrict their background activity via built-in settings.

  • In Settings > Battery and device care > Battery, go to Background usage limits.
  • Set apps to Sleeping apps or Deep sleeping apps to restrict background operations.

3. Reduce Screen Timeout and Brightness

  • Go to Settings > Display > Screen timeout. Set to 15 or 30 seconds.
  • Adjust brightness manually lower or enable Adaptive brightness so it adjusts based on conditions.

4. Enable Adaptive Battery and Auto-Disable Unused Apps

  • In Settings > Battery and device care > Battery, tap the menu (three dots) > Settings or More battery settings.
  • Turn on Adaptive Battery so the system limits battery use for seldom-used apps.
  • Enable Auto-disable unused apps so that apps you rarely open are disabled automatically.
Android Battery Settings
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Screenshot by Technobezz

5. Enable Power Saving Mode

  • Go to Settings > Battery and device care > Battery.
  • Tap Power Mode and choose Optimize, Medium Power Savings, or Maximum Power Savings.
  • Optionally enable Adaptive power saving so it switches modes automatically based on usage patterns.

6. Reboot Your Device

Restarting can clear minor glitches or memory leaks causing battery drain. Hold the power button and tap Restart.

Restart Android
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Screenshot by Technobezz

7. Turn Off Lift to Wake / Double Tap to Wake

  • Go to Settings > Advanced Features > Motion and Gestures.
  • Turn off Lift to Wake and Double Tap to Wake.
Motion and Gestures
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Screenshot by Technobezz

8. Put Apps to Sleep / Deep Sleep

  • Go to Settings > Battery and device care > Battery.
  • Tap an app in the list and enable Put app to sleep or mark it for Deep sleep.
Put Apps to Sleep
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Screenshot by Technobezz

9. Quick Optimize Your Phone

  • Go to Settings > Battery and device care.
  • Tap Optimize to run a quick diagnostic that closes background tasks and scans for issues.

10. Enable Dark Mode / Night Mode

On AMOLED displays, true black pixels consume no power, making Dark Mode effective for battery savings.

  • Go to Settings > Display > Dark mode and turn it on.
Night Mode
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Screenshot by Technobezz

11. Lower Screen Resolution or Refresh Rate

  • Go to Settings > Display > Screen resolution. Choose a lower option (e.g. HD+ or FHD+).
  • In newer phones, also lower the refresh rate (e.g. from 120 Hz to 60 Hz) to cut consumption.
Screen Resolution
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Screenshot by Technobezz

Also consider reducing brightness manually and using adaptive brightness.

12. Turn On Accidental Touch Protection

  • In Settings > Display, toggle Accidental Touch Protection to prevent false screen wakes.

This helps when the screen activates while inside your pocket or bag.

13. Change Screen Mode / Color Profile

  • Go to Settings > Display > Screen mode (or Color profile).
  • Use a less demanding mode like Basic, AMOLED Photo, or AMOLED Cinema rather than saturated modes.
Screen Mode
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Screenshot by Technobezz

14. Turn On Reduce Animations / Motion Scale

  • Go to Settings > Advanced Features or Accessibility > Reduce animations and enable it.
  • In Developer options, you can reduce or disable window, transition, and animator durations.

15. Other Quick Battery Tips

  • Avoid live wallpapers and overly animated widgets.
  • Disable GPS, Wi-Fi, Bluetooth, NFC when not needed.
  • Disable automatic app updates over mobile data.
  • Turn off push notifications for apps that you don’t need real time alerts from.
  • Avoid leaving the phone in extreme heat or cold (e.g. >35 °C or <5 °C).
  • Remove or disable unused apps.

16. Update Software & Apps Regularly

  • Go to Settings > Software update > Download and install.
  • Also update apps via the Play Store to get bug fixes and battery optimizations.
  • If a recent update caused drain, clear the system cache partition or wait 1-2 days while the system “learns” usage.
Software Update
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Screenshot by Technobezz

17. Disable or Limit App Notifications

  • Go to Settings > Apps.
  • Choose apps with heavy usage, then open Notifications.
  • Toggle off Show notifications or limit types of notifications.

18. Boot Into Safe Mode

Safe Mode disables third-party apps temporarily, helping you narrow down if one app is causing the drain.

  • Power off your phone.
  • Press and hold Power until “Power off” appears.
  • Tap and hold Power off until the Safe mode prompt appears.
  • Tap Safe mode to confirm.
  • If battery drain improves, uninstall recently added or suspicious apps.

19. Factory Data Reset as Last Resort

If nothing else works, you may need to reset your phone. Be sure to back up all data first.

  • Go to Settings > General Management > Reset > Factory data reset.
  • Confirm by entering your password and tapping Delete all.

FAQs

Why does my phone battery drain even when I’m not using it

Background processes, push services, location, and system tasks can run even while idle. A software bug or defective battery may also contribute.

Does Dark Mode really save battery

Yes, especially on AMOLED or OLED displays because black pixels are turned off or consume minimal power.

Will a factory reset fix my battery issues

It can fix software issues or conflicts causing battery drain. A failing hardware battery won’t improve. Always back up before resetting.

Do I need to disable features like GPS and Bluetooth all the time

Not always. Turn them off when not in use. For example, leave them off overnight or while idle to help battery.

How often should I update my phone

Check for updates regularly (at least monthly). Updates often include performance and battery optimizations.

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