I've put two solar panels. Together they give a maximum of 220 Watt.

The control unit.

I'm testing if the solar panels are giving enough power to keep the fridge running. At the moment I'm still using the small (about 50 Amp) battery which came with the car. I want to change it for the biggest one I can find that will fit in the battery box.

The fridge is running now on full power and using about 3 Amp. The solarpanels are giving at the same moment also about 3 amp. The battery was about full when I started testing so I think the control unit is just giving what the battery needs.