What Processes Use the Most Battery on Windows and How to See Them
The per-app usage view, and how to limit background consumption.
Windows shows you exactly what's using your battery, with no additional program needed.
- Settings → System → "Power & battery".
- "Battery usage" → you'll see per-app usage over the last few days, with specific percentages.
This view tells apart foreground usage (while you're actively using the app) from background usage (while it's minimised or closed but still running) — high background usage from an app you barely use is the clearest sign something isn't configured well.
If a specific app uses too much in the background
Settings → Apps → find that app → "Advanced options" → change "Background app permissions" to "Never" or "Only while in use".
Tip: check this screen every so often, especially after installing new apps — some keep background activity going by default without it being obvious at a glance.
Frequently asked questions
How do I know if an app's battery use is normal?
Compare its foreground use (while you use it) with its background use. High background use from something you barely use actively usually means it's worth checking its permissions.
Does restricting an app's background activity break its notifications?
It can affect that specific app's real-time notifications, depending on how it's designed. It's a trade-off between battery and functionality worth weighing per app.