Patent ID: 8791666

Claim:
A charging cable for use in charging a vehicle, the charging cable comprising: a power line used to carry power from an external power supply to the vehicle, the external power supply and the vehicle being connected to each other with the power line disposed therebetween; an input section to which a set charging current value in charging the vehicle is input; an oscillator configured to generate an oscillation signal having a pulse width within a range of a rated current of the external power supply, the rated current being capable of being supplied to the vehicle; a pulse-width adjusting device configured to adjust the pulse width of the oscillation signal generated by the oscillator to correspond to the set charging current value input from the input section; and a charging current setting device configured to communicate with a power-supply side of an alternating-current power supply to set a value calculated by subtracting a current being used in household electrical appliances from a breaker rated current as a maximum supply current value in charging the vehicle, the set charging current value being set within a range of the maximum supply current value.