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Many people are familiar with electric cars. Some people think it is a very convenient transportation tool in life, while others say that electric cars always have various minor problems. For example, I often see a question: "Why does an electric car fill up as soon as it charges, but it drops 2 grids of electricity as soon as it accelerates?" This is a problem that many old electric cars have, so I will talk about the reasons for this problem, and there are 3 wrong charging methods.
The reason why electric cars charge quickly, and the acceleration will drop 2 grids of electricity
Generally, the charging time of electric cars is 7-9 hours, almost one night, but some car owners will find that electric cars charge faster than before and the green light will light up quickly, but when they are really riding, there will be problems. After accelerating, it can be observed that the power will drop 1-2 grids of electricity through the instrument. It is clearly just charged, why does this phenomenon occur? Is the battery broken? Kankan's clear answer, 80% is the reason for the battery!
As we all know, the energy source of electric two-wheeled bike is the battery, and a set of batteries is composed of several batteries. For example, the most common new national standard electric bicycle, the 48-volt battery used is composed of 4 12-volt batteries. If the four batteries are normal, the electric car will operate normally and the battery capacity will not be false, but as long as one battery is damaged, the battery's power storage capacity will decrease. You can imagine that if three batteries work, the charging time will naturally be shortened, and the power of the instrument will drop by several grids after twisting.
So, if an electric car charges quickly and loses power quickly, it is probably because the battery is damaged, and the solution is very simple. If only one or two sets of batteries are damaged, then there is no need to replace the entire battery, just replace the damaged one, which saves more money.
Pay attention to 3 wrong charging methods. Correction can improve service life
The above problems may occur in the electric vehicle battery, which may be because the battery itself is not that good. However, based on my years of experience, the wrong charging method is the key to damage to the electric vehicle battery. For example, the following 3 wrong charging methods have greatly reduced the battery life and life, which is worth paying attention to!
Error 1: Long-term charging without pulling out the charger
Nowadays, 70% of electric vehicles are equipped with lead-acid electric vehicles, and most of them use switch-type chargers. The charging method is also quite unique. From no power to fullness, it takes three processes, namely constant voltage, constant current, and trickle charging. The green light will be displayed after the first two stages, which will take about 7-9 hours. If the battery is not pulled for a long time after being charged, the battery will be overcharged, and a small current will enter indirectly during which it is possible to charge the battery, and the increase in the internal temperature will also accelerate the evaporation of electrolyte moisture.
Correct way: electric car can be properly charged after the green light is on, but the time should not be too long. It is best to unplug the charger within 1 hour.
Error 2: Use up and recharge the battery of
Nowadays, there are some differences in the battery specifications of electric vehicles. Some have small capacity and some have large capacity. Therefore, some car owners are difficult to control the charging nodes, and often use up and recharge the battery completely. This behavior will cause the battery to lose power, which is okay occasionally, but if this is often the case, it will reduce the battery's power storage capacity and reduce the battery life.
Correct way: It is not advisable to charge too much, because it will accelerate the battery cycle, and it is not advisable to wait until it is too low before charging, because it will shorten the battery life. Therefore, it is best to charge until the battery is 20-30% left to allow the battery to run normally.
Error 3: Frequently use fast charging or mixed charger
Now there are fast charging charging piles on some streets outside. You can charge the battery in a short time by investing coins, which is very convenient and fast. But remember that this fast charging uses a high current. Although it can charge very quickly, frequent use will cause the battery to bulge.In addition, it is also a reason to use a charger with a large output current to charge a small battery, it will also cause water loss and bloating of the battery.
Correct way: The fast charging charging pile outside can be used, but it can only be used for emergency purposes. Do not use fast charging frequently. In addition, if the charger is damaged, it is best to be equipped with the original charger. If it really doesn't work, choose a charger that matches the battery specifications.
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The battery of an electric car is a easily damaged part. If you don’t pay attention to the charging method, the battery level will be false, and it will cost a lot of money to replace the battery. So I suggest that car owners should try to use the correct charging method as much as possible. If it really doesn’t work, it’s OK to do less.
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