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13. How to Determine On-battery Run Time
This table will aid in estimating the length of run time that you may expect for a given load.
1. To calculate the on-battery run time first determine the total load protected by the UPS in
Volt-Amps. Obtain load figures from either the labelling on the protected equipment or the
accompanying literature. For loads specified in watts, multiply the specified figure by 1.4. For
loads specified in Amps, multiply the specified figure by 208 for the main load, or 120 for the
auxilliary load.
2. Add the individual loads to determine the total load.
3. Compare the total load of your system to the run time table below
1400VA and 2200VA Models
Typical On-Battery Run Time Versus Load, in Minutes
Load
Internal
Battery
1
battery
pack
2
battery
packs
3
battery
packs
4
battery
packs
5
battery
packs
6
battery
packs
7
battery
packs
8
battery
packs
9
battery
packs
10
battery
packs
100 270 585 925 1,265 1,605 1,945 2,285 2,625 2,965 3,305 3,645
200 165 375 585 810 1,035 1,265 1,490 1,715 1,940 2,170 2,395
300 110 270 425 580 750 920 1,085 1,255 1,425 1,595 1,765
400 80 205 325 450 575 710 845 980 1,115 1,245 1,380
500 63 160 265 365 470 570 680 795 905 1,015 1,125
600 51 130 220 305 390 480 565 660 755 850 945
700 41 105 180 255 330 405 480 555 640 720 800
800 35 90 155 225 290 355 425 490 555 630 700
900 29 76 135 195 255 315 375 435 495 550 615
1000 26 67 120 170 225 280 335 385 440 495 550
1200 20 53 91 135 180 225 270 315 360 405 450
1400 16 42 73 110 150 185 225 265 300 340 375
1600 13 34 60 88 120 155 185 220 250 285 315
1800 11 29 52 75 105 130 160 190 220 250 280
2000 9 25 44 65 87 115 140 165 190 220 245
2200 8 21 38 56 75 100 120 145 170 190 215