Minimum 6 ga if only a foot or two. Not quite sure what my camper cables are, but pretty sure they are quite a bit larger than 6 ga. My medium duty jumper cables are 4 ga. Didn't want to spend the money on heavy duty ones.
You can't size wires for DC as you do for AC. Voltage drop is terrible for DC compared to AC, so the wires have to be larger.
Last edited by JKB; 04/20/12 05:13 AM.
