Electric bike has its inexpensive, convenient, environmentally friendly functional advantages, favored by urban lower-middle class. China's electric bicycle from the developed to the mid-1990s in small quantities on the market, production and marketing since 2012, has shown a substantial annual growth. Due to strong demand for large-scale three electric vehicles, electric bike market in recent years, China has maintained growth by leaps and bounds. Failure to use electric vehicles electric cars fault is mainly divided into three types: 1, the whole car is dead - the main fault is that the battery open welding Nanchang three electric vehicles, insurance burn, power cord and battery socket is off, poor contact converter damage. no major problems. 2, there is electricity does not go - Under normal circumstances, if you look at the return of the brake, brake put off if you put the hand brake can withstand a three-wheeled electric car driving, in addition to the above circumstances, turn right. The controller is damaged. motor damage. Hall there will be little damage to the phenomenon does not go .. Like this place has a bad power supply among other brands have the possibility of three electric vehicles, you must find professionals to inspect maintenance. 3, is that some special situations: car boring, sometimes walking and sometimes do not go, the power consumption increases, the car ran a short distance may have damaged two batteries insufficient tire pressure three wheeled electric car brakes too tight....... Zhengzhou _ White Dragon Machinery (certified) _ three-wheeled electric car provided by the White Dragon Machinery Co., Ltd. Shandong. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) Shandong Linyi, bicycles, tricycles and accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the White Dragon machinery leadership with the staff warmly welcome all inquiries negotiations to create a better future for White Dragon machinery.