A charger includes a charging cable and a charging connector. A heater is configured to heat the charging connector using electric power supplied through the charging cable. A state determining device is configured to detect a charge state of a vehicle-mounted battery and to determine whether a heating condition to heat the charging connector is met. A heating controller is configured to control heating performed by the heater based on a determination made by the state determining device. The heater is able to be switched into a post-charge heating state in which the heater heats the charging connector after completion of charging of the vehicle-mounted battery. The heating controller switches the heater into the post-charge heating state and controls heating performed by the heater when the state determining device detects that charging of the vehicle-mounted battery is completed and determines that a heating condition is met.