12v62a

How long does a 12v62a inverter last

When powered by a 2000W inverter (92% efficiency), a 12V battery will last 26. Battery Running Time = 100Ah x 12v x 80% x 92% / 1000W = 0. . As a simple rule, to calculate how long a 12v deep-cycle battery will last with an inverter multiply battery amp-hours (Ah) by 12 to find watt-hours, and divide by the load watts to find run time hours. Finally, multiply run time hours by 95% to account for inverter losses.