26 User Guide APC BC300 Series 40kW 208/450/480V UPS
990-1403
Maintenance and Testing
a. Display the user parameter list by pressing .
b. Use the arrow keys to scroll through the parameters until the display shows “Battery
capacity test: xxx.”
c. Switch the battery capacity test “OFF” by pressing .
5. Wait until the display shows “Normal operation load power xx%” and a short alarm
sounds.
6. Press . The display will show “Battery capacity test: xxx.” (“xxx” = the estimated
backup time in minutes)
7. Press to exit the user parameter list.