A guide device (40) comprises a station battery information acquisition component (41), a vehicle battery information acquisition component (43), and a guide component (46). The station battery information acquisition component (41) is configured to acquire station battery information about a plurality of batteries (10) that are being charged at a charging station (60) in which are installed one or more charging devices configured to charge the batteries (10). The vehicle battery information acquisition component (43) is configured to acquire vehicle battery information about the batteries (10) respectively connected to a plurality of vehicles (20). The guide component (46) is configured to guide a specific vehicle (20) to a specific charging station on the basis of the station battery information acquired by the station battery information acquisition component (41) and the vehicle battery information acquired by the vehicle battery information acquisition component (43).