CONTROLLER, CONTROL METHOD, AND MEDIUM STORING CONTROL PROGRAM

A controller controls charging of a battery mounted on an eVTOL. The controller includes an acquisition unit and a setting unit. The acquisition unit acquires a battery load profile and/or a battery state profile as a profile during landing flight. The setting unit sets a charging plan for when the eVTOL is parked based on the profile before completion of battery transient change after landing.