AVRT450U Estimated Runtime UPS AVRT450U 20 119 40 57 60 34 Load in Watts 100 120 140 160 200 220 16 12 9.4 7.3 4.4 3.4 All runtime values are in minutes. 240 2.7 260 2.1 300 1.3 320 1.0 360 0.