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What is the cause of charging the electric car battery?

Date:Apr 18, 2019

With the popularity of electric vehicles, it has become a means of transportation for many consumers, but in the use of daily electric vehicles, it will also have various problems. For example, there are often users who report that electric vehicle batteries often encounter charging and heating problems. What is the reason?

In fact, the heating process during the charging process may sometimes be a problem of the battery itself: the aging of the battery, the internal resistance becomes large, the electrolyte is dry, and there is a short circuit inside to cause heat. The number of batteries increases with the use, which includes discharge and charging. The water molecules in the battery are gradually lost. This is the battery gas and water loss that we talk about, which causes the battery to heat up in the electrochemical reaction. In addition, the battery solution is During the charging and discharging process, sulfuric acid crystals are formed and the precipitate is stuck on the lead plate, which causes the battery resistance to increase and heat; these two kinds of problems can be solved by adding water, desulfurization and depolarization. If the battery is hot due to sprint breakage, it is best to replace it with a new one.

However, in general, electric vehicle batteries are charged and charged for the following four reasons.

First, the battery and charger do not match, resulting in electric vehicle battery charging fever.

Some users like to buy one online after the electric vehicle charger is broken, and often rarely consider the compatibility of the charger with the battery voltage and current. In addition, some users also like to mix chargers.The different types of chargers can also affect the battery. In short, charging the battery with such an electric vehicle charger will cause the electric vehicle battery to be overheated. For such a problem, the general solution is that the electric vehicle battery is charged and heated by the special car charger.

Second, the charger parameters are not accurate, resulting in electric vehicle battery charging fever.

Some chargers may cause inaccurate parameters due to quality problems. The inaccuracy of the parameters may cause the current and voltage to be unstable during charging, which may cause the electric vehicle battery to be charged and heated. In addition, some inferior chargers can also cause the electric vehicle battery to charge and heat because there is no negative pulse to eliminate the polarization function. For such problems, the general solution is to go to the regular repair shop to replace the matching charger, you can solve the problem of electric vehicle battery charging and heating.

Third, one of the small batteries has a short circuit, resulting in electric vehicle battery charging.

If a short circuit occurs in a small battery of the battery pack, the entire battery pack will not operate normally, resulting in heating of the battery of the electric vehicle. For this kind of problem, the user can first measure each small battery with a multimeter, and if there is a low voltage, it is a shorted battery. For such problems, the general solution is to replace the entire battery, rather than replace the shorted battery. That can solve the problem of charging and charging the electric vehicle battery.

Fourth, irregular charging, resulting in electric vehicle battery charging fever.

Some users like to charge the electric car in the corridor, and many corridors are not ventilated. This kind of environment is sultry, which will make the electric car battery charge hot. In addition, some users like to charge immediately after going out. In fact, such a charging method will accelerate the battery water loss. Because the battery is still in a high temperature state after going out, this time, charging will make the temperature higher. For such a problem, the general solution is to rest the electric vehicle for half an hour, and then wait for the battery to cool before charging, so that the problem of charging and charging the electric vehicle battery can be solved.In short, when the electric vehicle battery has a problem of charging and heating, it is generally caused by these several reasons. For the user, avoiding the irregular charging method can extend the battery life of the electric vehicle to a certain extent.

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