Patent attributes
A battery power detecting device and method are provided. It can detect the battery power of a battery rod in a non-disposable electronic cigarette. The battery power detecting device includes a spare battery unit, a current sampling unit, a voltage sampling unit, a charging control unit, a main control unit, and a power display unit. The main control unit is configured to control the charging control unit to adjust and output the voltage provided by the spare battery unit according to the charging current sampled by the current sampling unit, in order to make the charging current equal to a preset current. Then, the main control unit calculates the battery power of the battery rod according to the charging voltage currently sampled by the voltage sampling unit, and finally controls the power display unit to display the battery power of the battery rod.
