Electric car fault diagnosis are the following nine direction: 7) Under what circumstances should it replace battery battery problems many reasons, but in addition to drum kits, "off the powder," off the grid plate, short circuit, shell damage, etc., but? generally without replacement, as long as you can continue to use the service. Bulge is due to excessive battery charging, the battery has been deformed drum kit, consumers can feel touch; casing damage can also be visual. "Off the powder," off the grid plate and short circuit, you need to open the battery before we can see if these two grounds maintenance contractors to propose replacement, consumers can make service providers on the spot to open the battery checked. The so-called trade-only plus point repair solution 8) how to identify old batteries? Welded joints to see whether or used at the scene, we can see the shell closed electric tricycle is clean, refurbished old batteries, always used to leave clues. Also closed electric tricycle manufacturers, first check the new battery package to be traded when a new battery, it is best to check before unpacking yourself. In front of the electric car repair, we must understand clearly the electric car batteries, motors and the corresponding parts of the model, must be checked at the end of maintenance. 9) How to correctly use the electric car dashboard electric car is almost universal in China within the instrument as the basic components of electric cars, how much do you know how to properly use? 1 often wipe the surface of each electric car dashboard, on the one hand to prevent dust and oil invasive instruments form the core internal damage, it also facilitates the dynamic observation instrument pointers. 2, to acquire all of the performance of the instrument and the instrument indicates the status of the relationship between the relevant part of the working conditions of the engine and the electric tricycle direct closed for Meter indicates the state, determine the working condition of the engine and look for fault location and cause. 3, when the engine is started all closed electric tricycle price, must observe the dynamics of each instrument, abnormal, timely treatment; and cars with the engine running, and it should always observe the dynamics of each instrument, in order to grasp the work of the relevant system. 4, the voltage values ??of different instruments, will not be allowed outside except ammeter mutual substitution, to avoid damage to the instrument. Closed electric tricycle brand, fully enclosed electric tricycle, White Dragon White Dragon machinery provided by Shandong Machinery Limited. White Dragon Shandong Machinery Co., Ltd. (www.bailonggrp.com) strong, credible, Shandong Linyi bicycles, tricycles and accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the White Dragon machinery and you hand into the brilliant, for a better future!