DFI G486VPA User Manual page 101

You should replace the old battery with the type of
Lithium battery already used on your system board,
3V Lithium battery CR2032. One of the battery
sockets presented below is supported by your
G486VPA board.
To remove the battery from the socket above, push
the black button downward (1) and the battery to the
right (2).
To remove the battery from the socket, simply push
the battery to the left. It will slide out of the socket.
Caution:
Battery may explode if mistreated. Do not recharge,
disassemble or dispose of in fire.
Troubleshooting Checklist u 5-2
G486VPA