I am going to be installing the Renogy 20 amp DC to DC charger in my Land Cruiser and I am wondering what gauge wire to use? I am planning on mounting the charger in the rear of my vehicle and I think the run from the starter battery to the charger will be about 10-15 ft. I’ve been looking at different wire size calculators but don’t know what voltage drop is acceptable. Will 8 gauge wire be ok for this length of run and a 20 amp charger? Any benefits to using a larger gauge wire that is worse quality (I’m thinking 2 gauge copper coated aluminum jumper cable) instead of a smaller gauge, copper stranded wire?