1. Lack of electrolytes
If there is a lack of electrolyte, it will affect the electrochemical reaction of lithium batteries, lithium batteries are easy to heat up when normal, and even deformation, and stop the service life in advance. To this end, you can choose to increase the electrolyte for maintenance, generally choose a ratio of 1.05 high-purity dilute sulfuric acid, because the impurities contained in the electrolyte will cause the battery to short circuit, such as iron and copper.
2. Hybrid charger
Because of the electric car, many home users have more than two electric cars, and some users for convenience, often charger, 48v, if 60v electric car lithium battery charger, because the voltage does not match, will cause the battery temperature rise, in addition, the charger mixture is very risky, will be directly responsible for the bad electric car. Therefore, special car chargers are advocated.
3. Lithium battery aging and damage
With the passage of time, lithium batteries used for a long time, due to various reasons aging or damage, this time can not save the battery, require replacement of the battery, otherwise there will be risks.
4. A battery is short-circuited
If a single lithium battery shorts out, the battery temperature will be too high when charging. In this regard, the correct way is to use a multimeter to detect lithium battery problems, you can choose to replace a single battery, of course, the premise is that there is the same specification of the battery performance, or need to replace the entire battery.
Lithium battery electric vehicle charging hot, generally the charger is broken. This is an abnormal phenomenon, it is recommended that you replace the charger, generally there is heat dissipation on both sides of the charger, and there is a small cooling fan in the chip circuit position, so the charger is generally not so hot, it can only show that your charger has been used for too long, or the small cooling fan is not normal, does not turn, and the heat dissipation is blocked, in safety considerations, Power off immediately and replace.
1. Lithium-ion battery and charger do not match, so rarely consider the voltage and current matching of the charger and lithium-ion battery pack. If you use these mismatched chargers to charge, the battery of the electric vehicle will overheat;
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1. When the battery fails or loses water seriously, the battery or rewater should be checked, and the battery that has been used for more than 15 months should be maintained with water;
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3. Lithium-ion battery pack charging environment temperature is too high, the charging place should avoid high temperature environment, good ventilation.
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Charging irregularities and electricity are common causes of heat in lithium-ion battery packs.
Because the charger has a short circuit phenomenon, the battery short circuit, so the temperature is too high, generating huge heat, daily life must be reasonable to charge, use the original charger, otherwise it will lead to the battery burned
Sometimes the electric vehicle lithium battery charger will have abnormal heat during charging or use, which may reduce the battery capacity and shorten the battery life. The reasons for electric vehicle lithium battery charging heat are bad charger, quality problems and so on. We have to be careful if that happens.
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Under normal circumstances, the charging heat of electric vehicle lithium battery charger is about the same, not very high, but it is not low temperature, within the normal range, will not harm the battery, but if you encounter the phenomenon of excessive heat of the battery and the charger does not turn the light, you need to be careful.