Maintenance 44
1.
(optional) To replace the component with the UPS powered down, refer to "Powering down the UPS
(on page 42)."
2. Disconnect the communications cable from the option card.
3. Remove the two screws securing the option card and slide the card out.
To replace the component, reverse the removal procedure.
NOTE: Replacing the option card might require power management software to be restarted
or reconfigured.
Replacing the batteries
To replace the batteries:
1. Read and observe the requirements in "Important battery safety information (on page 44)" and
"Battery care and storage guidelines (on page 45)."
2. Follow the instructions in "UPS battery replacement procedure (on page 46)."
Important battery safety information
WARNING: The unit contains sealed lead-acid battery modules. To prevent fire or chemical
burns:
• Do not attempt to recharge batteries after removal from the unit.
• Do not disassemble, crush, or puncture the batteries.
• Do not short the external contacts of the batteries.
• Do not immerse the batteries in water.
• Do not expose to temperatures higher than 60°C (140°F).
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