Dell HHB006 Installation And Service Manual page 88

b. Lift the battery away from the system.
Figure 48. Removing the system battery
3. To install a new system battery:
a. Hold the battery with the "+" sign facing the positive side of the battery connector.
b. Insert the battery down into the connector and push the positive side of the battery until the battery snaps into place.
Figure 49. Installing the system battery
88 Installing and removing system components