Car battery cable products to help you keep your battery working well. Battery cables are heavy gauged wires which are connected to the vehicle's battery. One connects the battery to the starter motor (positive) and the second (negative) goes from the battery to a grounding point on the car. Car battery cable provides the link between the battery, load and charging system on your vehicle. Problems with the cable, faulty connections and poor maintenance can lead to problems such as bad system performance, low battery life, or even a damaged battery. Make sure you select the correct cable size for your battery, clean the connectors with a wire brush so they are free of any rust (or replace them if necessary) and then connect the cable using the correct amount of torque. Over-tightening can cause damage so take care. Checking your battery cable yourself can save you a trip to a mechanic and may just solve your electrical problems.