Poor battery life on a Windows laptop is often caused by background apps, high screen brightness, or power settings that prioritize performance over efficiency. A few quick checks can significantly improve battery performance:


1. Check Screen Brightness

The display is usually the largest battery drain.

  1. Click the battery icon in the bottom-right corner of the taskbar.

  2. Lower the brightness slider.

  3. Keep brightness at a comfortable but moderate level.

Reducing brightness can noticeably extend battery life.


2. Turn On Battery Saver

Windows includes a built-in power saving mode.

  1. Click the battery icon in the taskbar.

  2. Select Battery saver.

Battery saver reduces background activity, limits notifications, and lowers system performance to conserve power.


3. Review Power Mode

Windows allows you to choose between performance and efficiency.

  1. Right-click the battery icon.

  2. Select Power and sleep settings.

  3. Under Power mode, choose Best power efficiency.

This setting reduces CPU usage and improves battery runtime.


4. Close Unnecessary Applications

Some apps continue running even when minimized.

  1. Press Ctrl + Shift + Esc to open Task Manager.

  2. Look under the Processes tab.

  3. Close applications using significant CPU or memory that you do not need.

Applications such as web browsers with many tabs, video software, or cloud sync tools can drain battery quickly.


5. Disable Unneeded Startup Apps

Programs that start automatically can run in the background all day.

  1. Open Task Manager.

  2. Select the Startup tab.

  3. Disable apps that are not required at startup.

This can reduce both boot time and battery usage.


6. Check Battery Usage by App

Windows can show which programs are using the most power.

  1. Open Settings.

  2. Go to System → Power & battery.

  3. Select Battery usage.

Look for apps consuming a large percentage of battery and close them if unnecessary.


7. Disconnect Unused Devices

External devices draw power from the laptop.

Disconnect items such as:

  • USB drives

  • External hard drives

  • USB accessories

  • External displays

This can improve battery life when working on battery power.


8. Keep Windows Updated

Updates often include improvements for power efficiency.

  1. Open Settings.

  2. Go to Windows Update.

  3. Click Check for updates and install any available updates.

Restart the laptop after updates complete.


9. Restart the Computer

If the laptop has been running for a long time, background processes can accumulate.

A simple restart often improves system performance and battery usage.


When to Contact IT

Contact IT support if:

  • The battery drains very quickly even with minimal use

  • The laptop shuts down suddenly on battery

  • Windows reports the battery needs replacement

In those cases, the battery may be worn out and require replacement.