A power supply unit for an aerosol inhaler includes: a power supply that is able to discharge power to a load for generating an aerosol from an aerosol generation source； and a control unit that is configured to determine whether the power supply which is being charged has reached a predetermined charge state lower than a fully charged state, and complete charging of the power supply in a case of determining that the power supply has reached the predetermined charge state.一種霧氣吸嚐器用之電源單元，包含：電源，其可放電給用來使霧氣從霧氣產生源產生的負載；以及控制單元，其係構成為判定正在充電的電源是否到達比充滿電狀態低的預定的充電狀態，且在判定為電源已到達該預定的充電狀態之情況使電源之充電結束。
