I need help in calculating battery usage time.
I have load 1800W for 220V circuit
I am planning to use inverter 12V to 220V, nominal power 1500W/max 3000W
Batttery 12V, 142Ah, 850A
1800W (load) / 12V (battery voltage) = 150A
So working time: 142Ah / 150A = 0,94h?