Compaq Evo D500 Hardware Reference Manual page 32

Battery Replacement
Ä
B–2
CAUTION: Static electricity can damage the electronic components of
the computer or optional equipment. Before beginning these
procedures, ensure that you are discharged of static electricity by briefly
touching a grounded metal object.
1. Exit all software applications, shut down the operating system
software, turn off the personal computer and any external devices,
then disconnect the power cord from the power outlet.
2. Remove the access panel. Refer to "Removing and Replacing the
Access Panel" on page 3-1.
3. Locate the battery and battery holder on the system board.
4. Depending on the type of battery holder on your system board,
complete the following instructions to replace the battery.
Hardware Reference Guide