Lower screen brightness
Enable battery saver mode
Reduce keyboard backlight usage
Close unused apps and browser tabs
Disable Bluetooth when not needed
Turn off Wi-Fi when offline
Unplug external devices
Use power-efficient settings
Set shorter screen timeout
Reduce processor performance mode
Keep the laptop cool
Update operating system and drivers
Replace an old battery
Avoid running heavy background programs
Use sleep or hibernate instead of leaving it on
Lower audio volume
Switch to integrated graphics when possible
Keep storage space optimized
Disable startup apps
Use dark mode on OLED screens