System battery information
The server contains an internal lithium manganese dioxide, a vanadium pentoxide, or an alkaline battery
that provides power to the real-time clock. If this battery is not properly handled, a risk of the fire and
burns exists. To reduce the risk of personal injury:
• Do not attempt to recharge the battery.
• Do not expose the battery to temperatures higher than 60°C (140°F).
• Do not disassemble, crush, puncture, short external contacts, or dispose the battery in fire or water.
• If the server no longer automatically displays the correct date and time, then replace the battery that
provides power to the real-time clock. Under normal use, battery life is 5 to 10 years.
Removing and replacing the system battery
Prerequisites
Before you perform this procedure make sure you have a small flat-bladed, nonconductive tool available.
Procedure
1. Remove the front bezel on page 39.
2. Powering down the server on page 38.
3. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
4. Disconnect all peripheral cables from the server.
5. Do one of the following:
• Server in tower mode: Position the tower server for hardware configuration on page 40.
• Server in rack mode: Extend the server from the rack on page 41.
6. Remove the access panel on page 45.
7. Remove the air baffle on page 46.
8. Locate the battery on the system board.
9. Use a small flat-bladed, nonconductive tool to carefully lift the front of the battery from the socket.
10. Remove the battery.
98 Removal and replacement procedures
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