1 Turn your computer off by choosing Apple (K) > Shut Down. Disconnect all cables and the power cord from your computer.
2 Place a soft, clean towel or cloth on the desk or surface. Hold the sides of the computer and slowly lay it down so the screen is flat against the surface and the bottom is facing towards you.
3 Raise the stand and use a Phillips #1 screwdriver to loosen the three captive screws at the bottom of the computer by turning them counter-clockwise.
4 Holding the metal stand, tilt the back cover up and lift it away from the computer. The back cover with the stand attached should come off easily. If it doesn't, make sure the screws are turned completely counter-clockwise.
5 To protect the computer from electrostatic discharge, ground yourself by touching a metal surface inside the computer.
Warning: Always discharge static electricity before you touch any parts or install any components inside the computer. To avoid generating static electricity, do not walk around the room until you have finished the installation and closed the computer.
6 If an AirPort Extreme Card is installed, remove it from the slot over the battery.
7 To remove the old battery, place a fingernail in the cutout, lift the battery, and slide it out from the metal clip.
8 Locate the positive (+) side of the new battery. Slide the battery under the metal clip so the positive side touches the metal clip.
10 Holding the back cover by the stand, tilt it slightly and align the tabs on the top edge of the back cover with the slots on the top edge of the computer. Rotate the back cover down and gently press until it fits snugly on the computer.
11 Turn the three captive screws clockwise to tighten them. Be careful not to over-tighten the screws, as you may strip the screw heads.
12 Holding each side of the computer, gently turn the computer right side up. Then reconnect the cables and power cord you disconnected from your computer.
13 Press the power button on the back of your computer to turn it on.
Warning: Operating the computer when it is open or missing parts can be dangerous and could damage your computer.
Note: Replacing the battery may cause some settings on your computer, such as date and time, to revert to the factory default settings. You may also have to restore modem settings in any communications programs you use.
Dispose of the old battery following the instructions in "Disposal and Recycling Information" on page 89.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.