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.
a.Connect the UPS to utility power.
b.Allow the UPS to remain in Standby mode.
c.Allow the UPS to charge the batteries for at least 24 hours.
d.Update the battery recharge date label.
UPS battery replacement procedure
This component is
1.(optional) To replace the component with the UPS powered down, refer to "Powering down the UPS (on page 30)."
CAUTION: When
2.Remove the UPS front bezel ("Removing the UPS front bezel" on page 32).
3.Remove the UPS battery bracket ("Removing the UPS battery bracket" on page 17).
4.Remove the UPS battery modules.
To replace the component, reverse the removal procedure.
IMPORTANT: Charge the batteries for at least 24 hours before supplying backup power to devices. The batteries charge to:
•80 percent of their capacity within 3 hours
•100 percent of their capacity within 48 hours
Maintenance 36