I am installing a Victron 12v 3000 multiplus, 6 100 ah batteries and sterling 120a b2b charger. The batteries, inverter and b2b are as close to each other as possible while leaving required ventilation. The b2b and source are about 15 ft a part.
Getting different recommendations on wire size. 1/0 for b2b and single fused 2/0 between batteries and to inverter. this is the Recommendation from the Battleborn rep but he stated his reason for only using single 2/0 is a concern with using 4/0 because of inrush.
victron looks like it calls for 2 x 2/0 or 4/0 - mutiply web sites recommend 4/0 for batteries and inverter and 2/0 for b2b to source.
I am very new to this can anyone help clarify?
Second question - everything I am running is either 12v dc or 110 ac what are the advantages/disadvantages of switching to to 24v?
I understand there is loss when using an inverter to convert 12v to 110 - wouldnt there also be a loss using the inverter to covert from 24v back down to 12v? Or would going from 24v to 110 have less lose then 12 to 110 maybe making up for the lose from 24 to 12?
the advantage to increasing voltage appears to be a lowering amperage from 600 to 300 (reducing Resistance?) and requiring smaller gauge wire?