- Open Settings → System → Power & battery → Battery usage. It shows which apps use the most.
- Close background programs you don't need, and turn them off at startup in Task Manager's Startup tab.
- Turn on Battery saver on the same screen.
- Lower the screen brightness. It's one of the biggest drains.
- Turn off Bluetooth when you don't need it.
- In the browser, close tabs with video or ads running in the background.
MacOn a Mac: System Settings → Battery. It shows the battery's condition (Battery Health) and which apps use the most.
Important: If the battery is swollen, the lid doesn't close properly or the keyboard is lifting, stop using the computer and unplug it. A swollen battery is dangerous and should be replaced by a professional.
Quick questions
Should I keep the laptop plugged in all the time?
Most newer computers protect the battery by themselves. Some have a setting that limits charging to 80%, which extends battery life.
When should I replace the battery?
When it lasts much less than it did when new, even after closing what drains it, or when the operating system recommends replacing it.
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