Jinan City electric car electric car prices _ _ White Dragon Machinery (certified merchants) are provided by the White Dragon Machinery Co., Ltd. Shandong. Shandong White Dragon Machinery Co., Ltd. (sdbailong.com) is a professional "electric tricycle, tractor, horizontal bar diesel engines, agricultural machinery, agricultural machinery parts" of the company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so that the "White Dragon electric tricycle, tractor White Dragon, White Dragon horizontal bar Diesel" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the White Dragon Machinery has won the trust of customers in the public bicycles, tricycles and accessories, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! Electric vehicles, AC and DC electric cars electric vehicles. Generally speaking, the electric car is the battery as an energy source, through the controller, motor and other components, the electrical energy into mechanical energy movement to control the current size of the change in speed of the vehicle. The first electric car manufacture in 1834 electric car, which is driven by a DC motor. Today the price of electric cars, electric vehicles have undergone tremendous changes, type also varied. Failure of electric vehicles using electric vehicles failure judgment following nine main directions: 1) vehicle no electricity, how to check the first check there is no electricity supply, if not then to see whether the fuse is good electric car rankings, if the fuse normal? no power supply, check the power of the internal electrode wire is loose, the battery is disconnected. If the power supply, check the power cord and power locks are normal. 2) an electric vehicle, the motor does not turn on how to check? Will turn red and the positive turn yellow line shorted to speed on the controller, if the motor is operating normally closed four-wheel electric vehicles, the motor and controller is good, If the motor does not turn, the motor controller bad or worse if the motor and controller to normal, the motor does not turn, it may be transferred to a problem with the brake handle.