A power supply unit for an aerosol inhaler includes: a power supply able to discharge power to a load for generating an aerosol from an aerosol generation source； and a charger including an information input part, and configured to be able to supply one of a first charging voltage and a second charging voltage lower than the first charging voltage to the power supply, based on an input value which is input from the information input part. A fixed value which is predetermined as one input value can be input to the information input part, and the fixed value is a value for supplying the second charging voltage to the power supply.
