Hardware Reference Guide - HP Compaq Pro 4300 All-in-One Business PC

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 2-17 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 2-18 Removing a Coin Cell Battery (Type 3)
NOTE: After the battery has been replaced, use the following steps to complete this procedure.
18 Chapter 2 Hardware Repair and Upgrade