Dell Latitude D631 (Early 2009) - Manual (Page 36)

36 Using a Battery
Replacing the Battery
CAUTION: Using an incompatible battery may increase the risk of fire or explosion. Replace the battery only
with a compatible battery purchased from Dell. The battery is designed to work with your Dell™ computer. Do not
use a battery from other computers with your computer.
CAUTION: Before performing these procedures, turn off the computer, disconnect the AC adapter from the
electrical outlet and the computer, disconnect the modem from the wall connector and computer, and remove any
other external cables from the computer.
NOTICE: You must remove all external cables from the computer to avoid possible connector damage.
To remove the battery:
1 If the computer is connected to a docking device (docked), undock it. See the documentation that
came with your docking device for instructions.
2 Ensure that the computer is turned off.
3 Slide and hold the battery-bay (or media-bay) latch release on the bottom of the computer, and then
remove the battery from the bay.
To replace the battery, follow the removal procedure in reverse order.