I am told there are no stupid questions, but this one may change your minds.
I am working on my second robot, he is going to use 5 D-cells and has 4 motors each with 5 amps draw at stall.
A little math implies 20 amps, if I stalled all four motors. While I am hoping to never see 20 amps draw, (yes I am putting in a fuse), I am not very impressed with the wires coming off the battery holders. They are 24 gage, and I was thinking about using 16 gauge wire for the wires coming off the battery holders and the leads of the motors.