Just a quick one !
With my 1000w inverter running, just how much power is it draining from my batteries when running, say, the microwave rated at 600w ?
I can just about remember W=VxA from school days but cannot tie the 12v and 240v together.
Is it a straight 600/12=50amp (plus something for the inverter operation - 10%) ?
Is there a rule of thumb I can apply here ?