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+# Hardware 
+
+This entry focusses on various hardware components of a desktop PC or a laptop.
+
+## Battery 
+
+The battery of a notebook can be inspected by using the `upower` command.
+To use it the tool needs to be installed.
+In most [Linux](/wiki/linux.md) distributions this is bundled in a package of the same name.
+A usage example is shown in the following command.
+It will show the state, voltage, percentage and many other information about a given battery.
+
+```sh
+upower -i /org/freedesktop/UPower/devices/battery_BAT0
+```