An electronic smoking device comprising: a power supply portion comprising a power supply, an atomizer/liquid reservoir portion comprising a liquid reservoir and an atomizer, the atomizer operable when connected to the power supply to atomize liquid stored in the liquid reservoir, and control electronics, wherein the control electronics are configured to execute a set of computer-readable instructions to place the electronic smoking device in an operation mode, a communication mode, and a charge mode; characterized in that the control electronics are further configured to execute a set of computer-readable instructions to place the electronic smoking device in a low power sleep mode and a light sleep mode; wherein the control electronics executes the communication mode after the electronic smoking device is electrically coupled to a charger and the communication mode is configured to determine a charge parameter of the electronic smoking device; wherein the low power sleep mode starts when the atomizer/liquid reservoir portion 16 is disconnected from the electronic smoking device; wherein in the light sleep mode, an airflow sensor is active, while the electronic cigarette is a reduced polling mode, where the control electronics check for usage less frequently compared to the operation mode; and wherein the electronic smoking device, when placed in the communication mode, is configured for negotiating with the charger upon a connection of the electronic smoking device and the charger. a power supply portion comprising a power supply, an atomizer/liquid reservoir portion comprising a liquid reservoir and an atomizer, the atomizer operable when connected to the power supply to atomize liquid stored in the liquid reservoir, and control electronics, wherein the control electronics are configured to execute a set of computer-readable instructions to place the electronic smoking device in an operation mode, a communication mode, and a charge mode; characterized in that the control electronics are further configured to execute a set of computer-readable instructions to place the electronic smoking device in a low power sleep mode and a light sleep mode; wherein the control electronics executes the communication mode after the electronic smoking device is electrically coupled to a charger and the communication mode is configured to determine a charge parameter of the electronic smoking device; wherein the low power sleep mode starts when the atomizer/liquid reservoir portion 16 is disconnected from the electronic smoking device; wherein in the light sleep mode, an airflow sensor is active, while the electronic cigarette is a reduced polling mode, where the control electronics check for usage less frequently compared to the operation mode; and wherein the electronic smoking device, when placed in the communication mode, is configured for negotiating with the charger upon a connection of the electronic smoking device and the charger. wherein the control electronics are configured to execute a set of computer-readable instructions to place the electronic smoking device in an operation mode, a communication mode, and a charge mode; characterized in that the control electronics are further configured to execute a set of computer-readable instructions to place the electronic smoking device in a low power sleep mode and a light sleep mode; wherein the control electronics executes the communication mode after the electronic smoking device is electrically coupled to a charger and the communication mode is configured to determine a charge parameter of the electronic smoking device; wherein the low power sleep mode starts when the atomizer/liquid reservoir portion 16 is disconnected from the electronic smoking device; wherein in the light sleep mode, an airflow sensor is active, while the electronic cigarette is a reduced polling mode, where the control electronics check for usage less frequently compared to the operation mode; and wherein the electronic smoking device, when placed in the communication mode, is configured for negotiating with the charger upon a connection of the electronic smoking device and the charger.