The ideal cable for charging a mobile power station from the car's starter battery. Also widely used as power supply for car refrigerators, trolley fans and other 12 V devices with DC7909-Interface. The built-in replaceable 15 amp fuse provides safety during a short circuit and prevents high overvoltage currents from damaging connected equipment. The cable is not suitable as a "jumper cable" for cars, but can be used to charge an empty starter battery.