Compaq V5100 - Manual (Page 96)

5–6 Maintenance and Service Guide
Removal and Replacement Procedures
4. Remove the battery pack by following these steps:
a. Turn the computer upside down with the front
toward you.
b. Slide the battery pack release latch 1 to the left. (The
battery pack disengages from the computer.)
c. Lift the front edge of the battery pack 2 and swing it back
to remove it.
Removing the Battery Pack
Reverse the above procedure to install the battery pack.