To correct this issue select “Reset to Factory Defaults” from the “Configuration” menu of the LCD screen on the front of the UPS
You will need to wait approximately 30 seconds until this process complete. The LCD will indicate "Resetting to Fact Defaults" during this process.
Upon completion, the UPS will start the new unit install wizard on the LCD screen and prompt you to set "Language", "Local Power Quality", "Menu Type", and "Audible Alarms".
Once you have made your selections, manually select “Install New Battery” from the configuration menu on the LCD.
This UPS will now properly calculate the Replace Battery Date (which will initially be 4.5 years in the future).