Removal
Side Cover
Identify the side cover highlighted in blue.
Loosen the thumb screw that secures the side cover to the chassis.
Slide and lift the side cover off the chassis.
Coin Cell Battery
Identify the coin cell battery highlighted in blue.
Push the release lever on the coin cell battery socket to release it from the socket.
Lift the coin cell battery from the coin cell battery socket.
Install
Coin Cell Battery
Identify the coin cell battery location highlighted in blue
Insert the coin cell battery into the socket with the positive side (+) label facing up.
Snap the battery into place.
Side Cover
Identify the side cover location highlighted in blue.
Slide the side cover into place towards the front of the computer
Tighten the thumb screw that secure the side cover to the chassis.