The 1/0 battery cable (PN CC-1/0, $3.75 per foot) from M.A.D. Enterprises comes preterminated with the positive and negative cable clamp ends, but the actual lengths will need to be determined by the routing of the cables. Once you determine the length, terminate the cables and install the proper ends on them as shown in these three steps. After cutting the cable and trimming the insulation, carefully press the cable into the terminal. Solder or crimp the terminal (or do both). Finally, add a shrink-wrap sleeve to protect and seal the union.