Over 12 hour. Niuda electric vehicle is a domestic electric vehicle brand. Niuda electric vehicle is not a miscellaneous brand, but a domestic electric vehicle brand with complete R&D, manufacturing, sales and service system. According to the official website, the car master, Niu Da 12 generation is equipped with a 2000-watt motor with a speed of 80 yards per hour and a battery life of 400 miles. The performance of vacuum tire is much better than that of ordinary tire. It has wear-resistant and anti-skid functions, is safer and more reliable, brakes quickly and starts quickly.