Battery management system, battery management method, and terminal device

A battery management method used by a server device for managing battery stations where users exchange battery devices and for managing the battery devices, the battery management method comprising:

• displaying, on the terminal device, a setting screen for enabling the user to make specification regarding an expanded rental mode which permits rental of incompletely charged battery devices satisfying a predetermined expanded rental condition in a case where there is a shortage of fully charged battery devices at each battery station;
• acquiring setting information regarding the expanded rental mode according to specification made by the user on the setting screen displayed on the terminal device;
• controlling, by referring to the setting information, switching between the expanded rental mode and a normal rental mode which permits rental of only fully charged battery devices at each battery station;
• and
• display a guidance screen on the terminal device, the guidance screen providing the user with guidance on the battery stations based on control of the rental mode thereof and including information on a transition state to the expanded rental mode at each battery station.

A terminal device carried by a user and connected to a server device via a network,

• the terminal device being configured to
• display a setting screen for enabling the user to make specification regarding an expanded rental mode which permits rental of incompletely charged battery devices satisfying a predetermined expanded rental condition in a case where there is a shortage of fully charged battery devices at each battery station,
• provide the setting information regarding the expanded rental mode to the server device according to specification by the user on the setting screen, and
• display a guidance screen that provides the user with guidance on battery stations according to control of switching between the expanded rental mode and a normal rental mode which permits rental of only fully charged battery devices at each battery station, and includes information on a transition state to the expanded rental mode at each battery station, the control being conducted by the server device by referring to the setting information.