10
Servicing the Battery
This section describes how to service the system battery.
The system battery is a replaceable component that requires you to power off the server
before servicing. For more information about replaceable components, see Illustrated Parts
Breakdown and Replaceable Components.
The real-time clock (RTC) battery maintains system time when the server is powered off and
a time server is unavailable. If the server does not maintain the correct time when the system
is powered off and not connected to a network, replace the battery.
Caution:
These procedures require that you handle components that are sensitive to
electrostatic discharge. This sensitivity can cause the components to fail. To avoid
damage, ensure that you follow antistatic practices, as described in Electrostatic
Discharge Safety.
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.
Remove the Battery
Battery holder types may vary.
1. Prepare the server for service.
a. Power off the server.
See Powering Down the Server.
b. Disconnect the power cords from the power supplies.
See Disconnect Cables From the Server.
c. Extend the server into the maintenance position.
See Extend the Server to the Maintenance Position.
d. Attach an antistatic wrist strap to your wrist, and then to a metal area on the chassis.
See Take Antistatic Measures.
e. Remove the server top cover.
See Remove the Server Top Cover.
2. Locate the battery and RTC battery retainer on the server motherboard.
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