A power supply unit for an aerosol inhaler includes: a power supply able todischarge powerto a load for generating an aerosol from an aerosol generation source； and acharger including aninformation input part, and configured to be able to supply one of a firstcharging voltage and a secondcharging voltage lower than the first charging voltage to the power supply,based on an input valuewhich is input from the information input part. A fixed value which ispredetermined as one inputvalue can be input to the information input part, and the fixed value is avalue for supplying the secondcharging voltage to the power supply.
