Dell Latitude D830 (Early 2007) - Manual (Page 127)

Adding and Replacing Parts
127
3 Remove the battery cable connector from the connector on the system board.
4 Being careful not to break the plastic, slightly raise the corner of the plastic sleeve above the battery.
5 While holding the plastic sleeve, grasp the battery and pull it out of the battery compartment.
6 Install the new coin-cell battery into the plastic sleeve.
7 Connect the cable connector to the system board.
8 Reinstall the keyboard and hinge cover.
1 plastic sleeve 2 coin-cell battery 3 battery cable connector
3
1
2