| 摘要 |
The invention discloses an USB charger with electric power display of battery being charged and a method for electric power display of battery being charged in an electronic cigarette. The USB charger includes an USB interface, a battery unit and a charging control unit, and further includes an electric power display unit. The charging control unit, being separately connected to the USB interface, the battery unit and the electric power display unit, controls an external power supply charging a battery in the battery unit through the USB interface, tests voltage of the battery being charged directly or indirectly, and further controls the electric power display unit to show updated electric power of the battery being charged in real time to user who can know current charging state of the battery. |
