Laptop batteries degrade over time, but with the right habits, you can make your battery last longer per charge and extend its overall lifespan. Here are the most effective methods:
1. Lower Screen Brightness
The display is the biggest power drain. Dim your screen to the lowest comfortable level to instantly save battery.
2. Turn On Battery Saver Mode
Both Windows (Battery Saver) and macOS (Low Power Mode) automatically adjust settings to reduce background activity and energy use.
3. Close Unused Apps and Browser Tabs
Extra apps and too many Chrome tabs eat up CPU power. Close what you don’t need to reduce background energy consumption.
4. Disconnect Unnecessary Peripherals
USB devices, external hard drives, and even a wireless mouse dongle draw extra power. Unplug them when not in use.
5. Manage Startup Programs
Prevent unnecessary apps from launching at startup. This reduces CPU load and keeps your laptop running efficiently on battery.
6. Keep Software and Drivers Updated
System updates often include power optimization fixes. Make sure your OS, drivers, and apps are current.
7. Use Airplane Mode When Offline
If you don’t need Wi-Fi or Bluetooth, turn them off. Wireless radios constantly search for signals, draining your battery.
8. Adjust Power Settings
On Windows, choose “Best Power Efficiency” in Power & Battery settings. On Mac, optimize energy under System Preferences > Battery.
9. Avoid Extreme Temperatures
Heat damages lithium-ion batteries. Keep your laptop cool, avoid leaving it in direct sunlight, and ensure good ventilation.
10. Don’t Keep It Plugged in 24/7
Constant charging shortens lifespan. Instead, let the battery cycle between 20%–80% for long-term health.
Frequently Asked Questions
How can I make my laptop battery last longer in one charge?
Lower brightness, close unused apps and tabs, turn on Battery Saver/Low Power Mode, and disable Wi-Fi/Bluetooth when not needed.
Does charging overnight damage the battery?
Modern laptops have safeguards, but leaving it plugged in constantly can reduce long-term health; aim to cycle between about 20%–80% when practical.
What kills laptop battery life the fastest?
High screen brightness, heavy multitasking, overheating, and staying at 100% while plugged in for long periods.