Information processing device and information processing system

An information processing device according to the present application includes a hardware processor functioning as an acquisition unit, a determination unit, and a provision unit. The acquisition unit acquires user information that is information relative to a user. The determination unit determines a recommended battery on the basis of the user information acquired by the acquisition unit. The recommended battery is recommended to the user and used for a moving object. The provision unit provides information relative to the recommended battery determined by the determination unit.