US Patent 9502917 Charging method of electronic cigarettes and electronic cigarette box

The present invention relates to a charging method of an electronic cigarette and an electronic cigarette box. The charging method of the electronic cigarette comprising: presetting first voltage and current, and second voltage and current, charging the electronic cigarette with the first voltage and current for a preset length of time, detecting actual charging current or charging voltage to the electronic cigarette, comparing the actual charging current or charging voltage with the second current or voltage separately, selecting different charging modes to the electronic cigarette according to a comparing result. The electronic cigarette box is enabled to be compatible with different charging management modes for charging the electronic cigarettes, and the charging modes can be automatically selected according to the different charging management modes of the electronic cigarette.