Electric car charger is divided into AC and DC and, AC charger power is 7KW, DC charger power has 30, 60, 100, 150.200KW and other power levels to choose from. The following is a specific introduction about the electric car:Working principle:Through the battery, current, power regulator, electric motor, power transmission system, drive the car driving, technical principle:Pure electric car with electric motor instead of fuel engine, as opposed to automatic transmission. The traditional internal combustion engine can efficiently generate torque when the dedicated speed is limited to a narrow range, which is the traditional internal combustion engine cars need a large and complex transmission mechanism, in the pure electric car driving journey does not need to shift gears transmission device, convenient and easy to maneuver.