A charge controller, which controls a charging process for charging a battery mounted on a vehicle by connecting a charging connector of a charger that is installed outside the vehicle to a charging inlet of the vehicle, includes: a controller discriminating whether a cooling mechanism of the charging connector is provided on a charger side before starting the charging process, operating the cooling mechanism of the charging connector if the cooling mechanism of the charging connector is provided, and operating a cooling mechanism of the charging inlet that is provided on a vehicle side if the cooling mechanism of the charging connector is not provided.