The Schumacher BC-1804 18' 4-Guage red battery booster cable is designed to connect the discharged battery to the power source for charging. This jumper cable includes duty plated coil for vise-like gripping. It consists of color coded clamps to facilitate easy polarity identification. This booster cable features pressure crimped connections for low resistance and maximum connectivity. It is packaged in a convenient storage carton with carrying handle.