A charging cases for electronic cigarettes includes a container configured to house the electronic smoking device, a micro-control unit (“MCU”) configured to facilitate charging a first rechargeable battery for the electronic smoking device. A plurality of connecting pins are configured to facilitate electrical coupling between the electronic smoking device and the MCU. A connector is movably coupled with the charging case and configured to connect the MCU to external circuitry. A system includes an electronic smoking device comprising a battery, an eCig memory, control electronics, and a charging case comprising a container, a micro-control unit (“MCU”), a connector, and a charging case battery.