With the development of electric vehicles, the current electric vehicles have got rid of the embarrassing situation that they have no electricity and need to be recharged like the old ones. Especially for some special professions, such as the delivery clerk, the delivery clerk, etc., it is not cost-effective for them to wait for the electric vehicles to be recharged. As a result, various kinds of fast charging cabinets and power changing cabinets for cars have begun to spread. However, some electric vehicle owners said that they only charged three times, The new battery has just been replaced for three months, but it can no longer be charged. When I went to the repair shop to repair it, the master directly said that the battery was invalid. What is the reason?

　　The reason is actually very simple, mainly the pot of the fast charging station! You should know that the working principle of the fast charging station is high-voltage high current pulse charging, which is also known as high current charging. For an ordinary 48 volt electric vehicle, the current of the electric vehicle is constant. In order to solve the 12 hour charging problem in two hours in a fast charging station, the current is often increased, which will have an irreversible impact on the vehicle. High current charging will cause the following two irreversible effects on electric vehicles.

　　First, the battery plate is aging, and high current charging will cause the battery temperature to become very high. Under such a condition, the hydrochloric acid in the battery will volatilize to form lead sulfate, which will shorten the service life of the electric vehicle battery. The endurance will continue to decline, and the battery will show thermal loss, causing bulge. Therefore, under this charging condition, redox reaction will occur, which will simply lead to direct bulge of the battery, And the battery after bulging is simply discarded.

　　Second, the battery itself is not qualified. From now on, the battery problems are also frequent accidents. If the battery fails to pass the standard and the current is too high, the battery will simply be discarded. Therefore, the fast charging station is also a battery quality testing station! There are also many battery manufacturers that use batteries made by disassembly cells. We Ruiyu can use the new A cell, and we will never cheat!

　　Of course, when we buy and use electric vehicles, we must buy electric vehicles with qualification marks produced by manufacturers. If possible, do not use the fast charging device. You can go to some qualified shops for battery replacement, which is also a kind of protection for electric vehicles.

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