HP Parallel Uninterruptible Power System - Manual (Page 89)

Maintenance 89
4. Remove the UPS battery modules.
To replace the component, reverse the removal procedure.
IMPORTANT: Charge the batteries for at least 48 hours before supplying backup power to
devices. The batteries charge to:
• 80 percent of their capacity within 5 hours
• 100 percent of their capacity within 48 hours
Testing the new battery module
NOTE: The batteries must be fully charged and the UPS must not be in Battery mode to
perform the battery test.
NOTE: For an accurate battery test, test the UPS with at least 10% load applied to the UPS.
To test a new battery module:
1. Plug the UPS into a power outlet for 48 hours to charge the battery.
2. Press any button to activate the menu options. Select CONTROL and then START BATTERY TEST.
During the battery test, the front panel displays "Battery Test Pending."
A failed battery test initiates a Battery Test Failed alarm.
To cancel a battery test in progress:
1. Press any button to activate the menu options.
2. Select CONTROL, START BATTERY TEST, and then CANCEL.
Replacing the UPS
To remove the UPS:
1. Power down all attached load devices.