HELPING THE OTHERS REALIZE THE ADVANTAGES OF SOLAR DC CABLE

I have a canal boat with 6 x 350wat solar panels, and 4 12v 300amp lithium batteries. These are connected in the 24v circuit.Also I will require a fuse involving the battery financial institution along with the inverter. Any diagrams that you might send me can be appreciated. Fuse types and dimensions would assist if you might mail me them also. Th