HP Compaq Pro 4300 Maintenance & Serice Manual page 58

Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one
edge of the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the holder's lip
with the positive side up. Push the other edge down until the clamp snaps over the other
edge of the battery (2).
Figure 6-26 Removing and replacing a coin cell battery (Type 2)
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
b. Insert the new battery and position the clip back into place.
Figure 6-27 Removing a coin cell battery (Type 3)
Replacing the Battery 51