METHOD FOR CONTROLLING BATTERY POWER SUPPLIED TO HEATER OF AEROSOL GENERATING APPARATUS, AND AEROSOL GENERATING APPARATUS

An aerosol generation device includes a heater configured to generate an aerosol by heating an aerosol generating substrate; and a controller configured to control power to be supplied to the heater by a battery using a control signal, wherein the controller is further configured to identify state information of the battery at a heating start time point when the heater starts to be heated and calculate a duty ratio of the control signal based on the identified state information.