The user can readily determine a battery station where a battery exchange can be performed without fail. A management server searches a battery station that suits a battery configuration of an electric vehicle operated by each user according to management information on the battery configuration thereof, and to transmit a guidance screen for guiding the user to the searched battery station to the terminal device carried by the user. In particular, the user is guided to a station where the number of fully charged battery devices in a battery exchanger is equal to or greater than the number of battery devices used by the electric vehicle.