HP 421 Notebook-PC - Manual (Page 75)

To run Battery Check:
1. Connect the AC adapter to the computer.
NOTE: The computer must be connected to external power for Battery Check to function
properly.
2. Select Start > Help and Support > Troubleshooting tools > Battery Check.
Battery Check examines the battery and its cells to see if they are functioning properly, and then
reports the results of the examination.
Displaying the remaining battery charge
▲ Move the pointer over the battery meter icon in the notification area, at the far right of the
taskbar.
– or –
View the estimated number of minutes of battery charge remaining in Windows Mobility Center:
▲ Click the battery meter icon, and then click Windows Mobility Center.
– or –
Select Start > Control Panel > Mobile PC > Windows Mobility Center.
The time shown indicates the approximate running time remaining on the battery if the
battery continues to provide power at the current level. For example, the time remaining will
decrease when a DVD is playing and will increase when a DVD stops playing.
Inserting or removing the battery
CAUTION: Removing a battery that is the sole power source can cause loss of information. To
prevent loss of information, initiate Hibernation or shut down the computer through Windows before
removing the battery.
To insert the battery:
1. Turn the computer upside down on a flat surface, with the battery bay toward you.
Using battery power 63