A power supply unit for an aerosol inhaler includes: a power supply unit; achargingterminal electrically connected to an external power supply charging the powersupply; adischarging terminal electrically connected to a load generating an aerosolfrom an aerosolsource; and a control unit detecting a request for aerosol generation andcontrollingdischarging of the power supply through the discharging terminal and chargingof the powersupply through the charging terminal. The external power supply can beelectricallyconnected to the charging terminal in a state where discharging of the powersupply throughthe discharging terminal is possible. The control unit performs control suchthat thecharging and the discharging are not performed at the same time in a casewhere the controlunit detects the request in a state where the charging terminal and theexternal power supplyare electrically connected.