Chapter 21 Back-up Battery: Replacing/Disposing
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Replacing the Back-up Battery

See Figure 21-1.
1. Observe the precautions on page 115, “Safety Guidelines.”
2. Turn the server off and unplug the AC power cord.
3. Remove the top cover as described in Chapter 12, “Server Covers: Removing/Reinstalling.”
4. Using the tip of your finger, press down lightly on the lithium battery, and slide it toward the
tabs on the socket.
5. Gently lift the battery out of the socket, and dispose of it according to local ordinance.
6. Remove the new battery from its package, and, being careful to observe correct polarity
(positive-side up), gently insert it into the battery socket.
7. Reinstall the top cover as described in Chapter 12.
8. Run the SSU to restore the configuration settings to the RTC. For information about running
this utility, see Chapter 5, “System Setup Utility: When to Run.”