User Manual

78
|
UPS Maintenance
Testing Batteries
For a battery test to run:
S The batteries must be fully charged.
S The UPS must be in Normal mode with no active alarms.
S The load must be higher than 10%.
To test batteries:
1 Connect the UPS to utility power for at least 48 hours to charge the batteries.
2 Press the button for one second to go to the main menu selection and scroll down to the
Control menu using the
button.
3 Press the button to enter the Control menu.
4 Use the button to scroll to the Battery Test option.
5 Press the button to start the battery test.
During the battery test, the UPS transfers to Battery mode and discharges the batteries for 25% of
the original expected runtime. The status screen displays “Battery test running” and the
percentage of the test completed. The results display on the UPS status screen when complete.
Updating the UPS Firmware
To keep the UPS firmware updated with the latest improvements and benefits, visit www.dellups.com
for updates. You can download the latest firmware version and the instructions for installing it.