AEROSOL PROVISION SYSTEM

An aerosol provision system including an aerosol provision device having a first controller and a first electrical energy storage device; a charging unit for charging the aerosol provision device, the charging unit having a second controller and a second electrical energy storage device; wherein the first controller and/or the second controller is arranged to determine a connection status between the aerosol provision device and the charging unit and to cause the aerosol provision device to enter into a mode of operation in accordance with a number of options. Also provided is a method of operating an aerosol provision system, an aerosol provision device and a charging unit.