Maintenance 46
CAUTION: Because of the short shelf life of the batteries, avoid storing a battery spare as a
backup. Do not maintain an inventory of spare batteries on site unless a procedure to keep
these batteries charged while in storage is implemented.
UPS battery replacement procedure
WARNING: To prevent personal injury from electric shock or damage to the equipment,
remove the battery lead labels, and verify that the ERM circuit breakers are in the Off
position.
This component is hot-swappable and can be replaced without powering down the UPS.
1. (optional) To replace the component with the UPS powered down, refer to "Powering down the UPS
(on page 42)."
CAUTION: When hot-swapping batteries, the UPS is not protected in the event of a utility
power failure.
2. Remove the UPS front bezel ("Removing the UPS front bezel" on page 43).
3. Disconnect the battery leads.
4. Remove the UPS battery bracket.
5. Remove the UPS battery modules.
IMPORTANT: Do not pull the battery leads when removing or installing the batteries.
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