Hey guys, forgive my newbness. I ordered a renogy 3000 W inverter/charger about a month ago. I'm now realizing that because my system is 12v I'm going to need some fairly beefy cables to it. I've been trying to calculate the cable size needed and thought I had it figured out. I picked up some good 1/0 welding cable locally yesterday. However, now I'm thinking I miscalculated and need an even bigger gauge. Can somebody help me figure this out? Thanks in advance.