I feel like I have gone down a rabbit hole and came out knowing nothing. I understand this is a really basic question. My son and I are building a simple RC. It is using 4 1.5v (AAA) batteries in series. So if what I have gathered is correct that is 6v. What I cannot seem to figure out is what size wire should I get. I honestly thought this would be in the spec of the wire. Maybe I am not seeing it. I need a pretty good length and want to make sure before I go off and buy this.
I know there has to be a formula for this but what I am googling is not turning it up.