An information provision device comprising: an acquisition means that is configured to acquire travelling information of a plurality of electric vehicles (21; 22) on which a secondary battery is mounted, said travelling information in particular including at least one of a remaining capacity of the secondary battery, information of a predetermined travelling route of an electric vehicle (21; 22), topographical information of a road on which an electric vehicle (21; 22) travels, traffic information of a road on which an electric vehicle (21; 22) travels, position information of an electric vehicle (21; 22), and weather information of a place where an electric vehicle (21; 22) travels; a charge output estimation means that is configured to estimate, on the basis of the travelling information, a charge output value of a charging device (31; 32) provided in a predetermined area, where the charge output value indicates an amount of electric power of the charging device for the supply to the vehicles, that is calculated on the assumption that the vehicles are charged according to a necessity degree of the charge; characterized in that the information provision device further comprises: a judgment means that is configured to judge, on the basis of the estimated charge output value, whether there is a risk that shortage of a charge amount of the charging device (31; 32) will occur in the predetermined area; and an information provision means that is configured to provide recommendation information concerning a charge of the vehicle to an electric vehicle of the plurality of electric vehicles (21; 22) according to a judgment result of the judgment means. an acquisition means that is configured to acquire travelling information of a plurality of electric vehicles (21; 22) on which a secondary battery is mounted, said travelling information in particular including at least one of a remaining capacity of the secondary battery, information of a predetermined travelling route of an electric vehicle (21; 22), topographical information of a road on which an electric vehicle (21; 22) travels, traffic information of a road on which an electric vehicle (21; 22) travels, position information of an electric vehicle (21; 22), and weather information of a place where an electric vehicle (21; 22) travels; a charge output estimation means that is configured to estimate, on the basis of the travelling information, a charge output value of a charging device (31; 32) provided in a predetermined area, where the charge output value indicates an amount of electric power of the charging device for the supply to the vehicles, that is calculated on the assumption that the vehicles are charged according to a necessity degree of the charge; characterized in that the information provision device further comprises: a judgment means that is configured to judge, on the basis of the estimated charge output value, whether there is a risk that shortage of a charge amount of the charging device (31; 32) will occur in the predetermined area; and an information provision means that is configured to provide recommendation information concerning a charge of the vehicle to an electric vehicle of the plurality of electric vehicles (21; 22) according to a judgment result of the judgment means. a judgment means that is configured to judge, on the basis of the estimated charge output value, whether there is a risk that shortage of a charge amount of the charging device (31; 32) will occur in the predetermined area; and an information provision means that is configured to provide recommendation information concerning a charge of the vehicle to an electric vehicle of the plurality of electric vehicles (21; 22) according to a judgment result of the judgment means.