Hi all

We have a Multiplus Compact 12|1600|70 on a boat. How do I calculate current drawn from 12v DC to power AC appliances?

I am planning a new water maker and considering the Rainman 230V 1300W AC pressure pump. Naturally 1300W at 230V would draw:

1300W **÷** 230V = 5,65A. (P = V x I)

Would that mean?:

1300W **÷** 12V = 108,3A

Obviously switching 12V DC to 230 V AC would take its share if power on top of that, which is where I need help (assuming I'm not already wrong elsewhere)

I am planning to use a generator for the Rainman 230V 1300W AC pressure pump. But it would be nice to run the pump through the inverter off 12V for 30min or so at 12:00 on a sunny day with the solar panels helping out (solar panels: 2 x 320W parallel with Bluesolar MPPT 100|50).

Therefore, what would the current draw be on the 12V Batt bank (600Ah), powering a 230V 1300W AC pressure pump, using the Multiplus Compact 12|1600|70?