East Gate of Shanghai-Anhui Market, Jiuxian Town, Taihe County. Established in 2022, the second-hand electric vehicle business department of Zhang Tao, Laocheng Town, Taihe County, Fuyang City, Anhui Province, is located at the east gate of the Shanghai-Anhui market. It is an enterprise mainly engaged in maintaining motor vehicles, electronic products and daily products. Electric tricycle is a kind of three-wheeled transport vehicle which is powered by battery and driven by motor and used to pull goods or people. The electric tricycle adopts tubular battery with large capacity, left and right lining, deep discharge and traction, which can meet the requirements of continuous discharge after long-term work. The battery has been used normally for two years, and its content has not decreased.