CAUTION: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.
If you have not already done so, make a copy of your configuration
information, found in system setup.
Open the computer cover.
Locate the battery socket labeled BATTERY (see "System Board").
NOTICE: If you pry the battery out of its socket with a blunt object, be
careful not to touch the system board with the object. Ensure that the object is
inserted between the battery and the socket before you attempt to pry out the
battery. Otherwise, you may damage the system board by prying off the socket
or by breaking circuit traces on the system board.
Remove the battery by carefully prying it out of its socket with your
fingers or with a blunt, nonconducting object such as a plastic
screwdriver.
Insert the new battery into the socket with the side labeled "+" facing
up, and snap the battery into place.
NOTICE: To connect a network cable, first plug the cable into the network
wall jack, and then plug it into the computer.
Close the computer cover, and plug your computer and devices into
electrical outlets.