.... lets step back a little bit here. In you original post you were powering from an AA battery, now you are using 47 amp motors. I was assuming (and I think others) you were using the plug board / proto board for you project and answered with that assumption. To run 47 amps for each motor many things have to change (remember I mentioned grounding).
So I think you should restate your goal(s) if you would like to get relevant responses.