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## Replace the System Battery

Note - This is a cold service procedure that can be performed by customers. See Cold Service, Replaceable by Customer for more information about cold service procedures.

| Caution - This procedure exposes sensitive components to electrostatic discharge. Be certain to follow the ESD precautions described inSafety Information.

The system battery is in a spring-loaded carrier that is located between riser 0 and the power supply housing.

1. Shut down the system for service.

   See Removing Power From the System.

2. Extend the server out of the rack.

   See Extend the Server.

3. If you can access the rear area of the server without removing the server from the rack, go to Step 4, otherwise remove the server from the rack:
   - Unplug all cables from the server.
   - Remove the Server From the Rack
4. Remove the top cover.

   See Remove the Top Cover.

5. Remove riser 0 leftmost riser as viewed from the rear of the server).

   See Servicing PCIe and PCIe/XAUI Risers.

6. Push the top edge of the battery against the spring and lift it out of the carrier.
7. Insert the new battery into the battery carrier with the negative side (-) facing out.
8. Replace the top cover.

   See Install the Top Cover.

9. Return the server to its operational position in the rack.

   SeeReturn the Server to the Normal Rack Position.

10. Restore power to the server.

    See Power On the Server (`start /SYS` Command) or Power On the Server (Power Button).

11. Use the Oracle ILOM `clock` command to set the day and time.

    The following example sets the date to June 17, 2010, the time to 16:19:56, and the timezone to GMT.

        -> set /SP/clock datetime=061716192010

        -> show /SP/clock

        /SP/clock
            Targets:

            Properties:
                datetime = Wed JUN 17 16:19:56 2010
                timezone = GMT (GMT)
                usentpserver = disabled
            Commands:
                cd
                set
                show

    Note - For additional details about setting the Oracle ILOM clock, refer to the CLI Procedures Guide for Oracle ILOM.

12. Verify that the new system battery is functioning properly.

    See Verify the System Battery.

##### Related Information

- Verify the System Battery

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