Itronix T5200 User Manual page 55

When the battery becomes low, the computer beeps and the low
battery icon appears in the taskbar. Double-tapping this icon opens
the Power Properties window so you can view the level of battery
power. If the battery becomes very low, the computer beeps and a
low battery message appears on the screen periodically. Unless you
replace the battery or connect external power, the computer shuts
off automatically.
You can check the level of battery power by opening the Power
utility from Control Panel or by double-tapping the battery icon in
the taskbar. The Battery window provides information about the
status of your battery.