How To Calculate Battery Backup. Calculate the estimated operating time or thebattery backup time of any UPS using the load in Watt device efficiency number of batteries per strings strings number and the voltage of the battery capacity. APC UPS SelectorCalculator - Find the Correct Battery Backup.
Answer 1 of 4. Advertisement Unfortunately there isnt a super quick rule-of-thumb calculation for determining the runtime like there is for determining the necessary minimum VA. How much battery backup does a 24 v battery inverter provide.
After all youre getting a battery backup system for your computer to keep everything running when the power is out.
Where Battery AH Ampere Hour Capacity of Battery. Efficiency of Battery Generally it is 08 which is the max. Advertisement Unfortunately there isnt a super quick rule-of-thumb calculation for determining the runtime like there is for determining the necessary minimum VA. Power factor of home standard.
