The battery maintains system time when the server is powered off and a time server is unavailable. If the server fails to maintain the proper time when the server is powered off and not connected to a network, replace the battery.
The BIOS power-on self-test (POST) code checkpoint tests check the battery when the server is powered on. If the battery is low, the BIOS POST code checkpoint tests generates a Low battery error and logs it to the Oracle ILOM service processor (SP) event log.
Caution - Ensure that all power is removed from the server before removing or installing the battery. You must disconnect the power cables from the system before performing these procedures.
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