HP J4367A - UPS R3000 XR User Manual page 37

(optional) To replace the component with the UPS powered down, refer to "Powering down the UPS
1.
(on page 31)."
CAUTION: When hot-swapping batteries, the UPS is not protected in the event of a utility
power failure, unless at least one ERM is installed.
Remove the UPS front bezel
2.
Disconnect the battery leads.
3.
Remove the UPS battery bracket.
4.
Remove the UPS battery modules.
5.
To replace the components, reverse the removal procedure.
IMPORTANT:
devices. The batteries charge to:
• 90% of their capacity within 4 hours
• 100% of their capacity within 24 hours
("Removing the UPS front
Charge the batteries for at least 24 hours before supplying backup power to
bezel" on page 33).
Maintenance 37