Tips to buy electric cars vehicle structure is very simple, basic unit is the frame, plastic parts, shock absorption, batteries, controllers, motors. The quality of the frame is particularly critical, many users do not care about the quality of the frame, because this part is difficult to observe. But the quality of the frame directly determines the safety performance of the vehicle, the following provides several ways for you to verify the frame. First observation of plastic parts inside the vehicle frame welding level, if there is a false welding, sealing off the case, indicating that the quality of the frame is not ideal. Second, observe whether the frame rust marks, because the need for a frame in order to prevent rusting process called electrophoresis, many frame manufacturers in order to control costs, just a simple black spray without electrophoresis, if a new car that is rusty The problem, it shows the quality of the frame electrophoresis abnormal. The last test, high speed and then the emergency brake, to see whether there is sloshing around the frame, if the rock is very powerful, indicating frame quality tests, there are security risks. Because the electric car market was mixed, the frame is hidden inside the vehicle can not directly check wheeled electric car factory direct, so many manufacturers to control the quality of the frame is not critical. Good frame selection to three electric vehicles, on the vehicle is very important. There is also a simple way to remove the battery if the vehicle, you can try to hold up the weight, the heavier the description of the vehicle the more solid material, the greater the likelihood of better safety performance. Optional electric vehicle battery selection technique is also very important, good battery can greatly reduce the use of post-consumer and maintenance costs. Lead-acid batteries, and lithium-ion batteries are divided into different brands of batteries large price differences wheeled electric car wholesalers, and for lithium batteries, the greater the difference in different categories, a class II cell battery price comparison disparity. Ordinary naked eye is difficult to make a distinction between good and bad for the battery, and the battery has very large proportion of the price, so choose by brand battery cells can effectively avoid the bad fish in troubled waters. Days can, AMD is the battery industry listed company, is a trusted brand batteries. To avoid fakes, consumers can also choose not to dealers to buy batteries, and the choice to the battery franchise agency, so you can ensure the quality of the battery. Speaking of batteries, the quality of the charger is also very critical, many electric car fires occur mostly due to a short circuit caused by the charger. Charger not only directly affect the safety, but also has a direct effect on the battery life. Many battery life of only one year, not because of the quality of the battery itself, but consumers to choose the substandard quality of the charger. Long-term overcharge or charge less cause shorter battery life, so the selection of qualified battery charger is the key to life assurance, advised consumers to choose a high-quality three-wheeled electric charger depot, both to ensure security, but also to ensure the battery usage life, even in the charger to spend 20 dollars, the loss of high-end choice than to charge a bad battery charger caused much more cost effective. Three-wheeled electric car rankings | three-wheeled electric car | 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!