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Maintenance 47
When a battery alarm sounds, initiate a UPS battery self-test to verify that battery replacement is required. If
the Battery Fault LED remains illuminated, replace the batteries as soon as possible.
For more information on initiating a self-test, see "Initiating a self-test (on page 43)."
For the location of LEDs, see "UPS front panel LED indicators (on page 8)."
Obtaining new batteries
New batteries might be required within 30 to 60 days when the Battery Fault LED illuminates red. Obtain
spare batteries for the UPS when this occurs.
Spare battery modules are available for this UPS. The UPS spare battery kit part number is 517703-001.
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 44)."
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 45).
3. Disconnect the battery leads.
4. Remove the UPS battery bracket.
5. Remove the UPS battery modules.