A vehicle carries a battery package as its power source. Plural battery modules in the battery package respectively have a memory device for memorizing identification information that proves authenticity of each of the battery modules. A battery control unit in the vehicle has an authentication unit. The authentication unit determines whether or not each of the battery modules is a genuine product. When the battery module is determined as a non-genuine product, a control unit performs a restricted charging. The restricted charging restricts a charge amount of the battery, for effectively improving usability of the battery and for restricting use of a non-compliant battery.