Removing and replacing the system battery

The system battery provides power to the real-time clock. If the server no longer automatically displays the correct date and time, you might need to replace the system battery.

WARNING: The computer contains an internal lithium manganese dioxide, a vanadium pentoxide, or an alkaline battery pack. A risk of fire and burns exists if the battery pack is not properly handled. 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 of in fire or water.
  • Replace only with the spare designated for this product.
Procedure
  1. Power down the server.
  2. Disconnect all peripheral cables from the server.
  3. Remove the server from the chassis.
  4. Remove the bayonet board.
  5. Remove the three-slot secondary riser cage.
  6. If installed, remove the primary PCIe riser cage.
  7. Locate the battery.
  8. Slightly push the metal tab, and then remove the system battery from its socket.

    Removing the battery
  9. To replace the component, reverse the removal procedure.
  10. Properly dispose of the old battery. For more information about battery replacement or proper disposal, contact an authorized reseller or an authorized service provider.