Leaf blower with lithium battery multivibrator superposition voltage unit circuit multi-tube noise elimination function

A leaf blower with a lithium battery multivibrator superposition voltage unit circuit multi-tube noise elimination function comprises a battery state display unit. Four LEDs serve as display devices,through state combination, the voltage, the electric quantity and the temperature of a battery and whether the battery is abnormal or not can be correctly displayed, and therefore the working state ofthe battery can be judged. The charging voltage supplied to the lithium battery is not traditional constant-voltage constant-current direct current charging voltage but the multivibrator superposition voltage, formed by mixing the rectified voltage of a lithium battery charging circuit with the pulse voltage led from a free running multivibrator originally used for an electric discharge machiningmachine tool, generated by a multivibrator superposition voltage unit circuit, and the lithium battery is charged through holes, storing electric charges, in the lithium battery in a multi-point acupuncturing mode. The mean value of the pulse voltage led from the free running multivibrator is 82 V, the pulse frequency of the pulse voltage is 82 kHz, and twice the result can be obtained with halfthe effort.