True, I do remember reading about voltage drop. I should, however, only need to use a short-ish length of 4AWG making the resistance low, thus making the voltage drop lower. Its all in the OHMs law.. Im hoping to buy 1/0 and distributing to 2 4AWG or 1x4AWG and 1x8AWG. I just think its too much to wire 2 different wires from battery to amps because my 4AWG lengths wont run that far. I could extend them by using a fuse a junction for two lengths of 4awg wire but that wouldnt put the fuse as close to the power source as recomended