Compaq Armada V300 Series Reference Manual page 63

When the battery meter or power meter icon is displayed in the
taskbar, the icon can also be used as follows.
View the total battery power
remaining in the system.
Enable/disable an on-screen
critical low-battery warning.
Access the Power tab in the
Power Properties window.
Open battery meter in a
popup window.
Display charge information as
a percent of a full charge or
as the run time remaining.
View the total battery power
remaining in the system.
Open the Compaq Power
Properties window.
Rest the cursor over the icon.
Left-click the icon, select or clear
the Enable Low Battery Warning
check box, then select OK.
Right-click the icon, select Adjust
Power Properties, then press
Double-click the icon.
Left-click the icon, then select your
preference in the popup window.
Rest the cursor over the icon.
Double-click or right-click the icon.
.