Servicing the Battery
This section describes how to service the system battery. The system battery is a replaceable unit that requires you to power off the server. For more information about replaceable units, see Illustrated Parts Breakdown and Replaceable Units.
The real-time clock (RTC) 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 system is powered off and not connected to a network, replace the battery.
 | 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 this procedure. |
This section covers the following procedures: