UPS uninterruptible power supply time calculation

System voltage = Volts

Device Device voltage and current
Load1 = WattsAmperes
Load2 = WattsAmperes
Load3 = WattsAmperes
Load4 = WattsAmperes
Load5 = WattsAmperes
Load6 = WattsAmperes
Load7 = WattsAmperes
Load8 = WattsAmperes
Load9 = WattsAmperes
Load10 = WattsAmperes
Minimum UPS load = volt-ampere
Construction UPS load = volt-ampere

UPS uninterruptible power supply time calculation