1, lack of electrolyte
If there is a lack of electrolyte, the battery will increase the battery resistance and heat during the charging and discharging process, affecting the battery life. In this regard, you can choose to add electrolyte stock, generally 1.25 ~ 1.28 dilute sulfuric acid, must be high purity, some impurities are very bad for the battery, such as iron and copper. After opening the lid, add 10ml per hole, not more, not more is better. This can only avoid the lack of electrolyte, so that the battery does not heat, and can not increase the capacity, can slightly extend the life of a few months. To really increase capacity, you have to replace it.
2, the charger and battery do not match
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Due to the popularity of electric vehicles, many users have more than two electric vehicles, and some users for convenience, often mix the charger, if the battery is 48V with 60V charger, due to the voltage mismatch, it will cause the battery temperature rise, in addition, this practice is very dangerous, and even directly charged bad electric vehicles. Therefore, it is recommended that special car charger.
3, battery aging or damage
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As we all know, since the battery is not allowed to add heavy metals such as cadmium, our service life has dropped a lot. In addition, after some electric vehicles have been used for a few years, the battery has been aging or damaged, then the battery is time to replace, and then choose to charge, it can no longer absorb. Therefore, there will be excessive temperature when the battery is charged.
4. Short circuit of a single battery
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If a single battery is short-circuited, it will also cause the battery temperature to be too high when charging. In this regard, the correct way is to use a multimeter to find the problem battery, you can choose to replace a single battery, of course, the premise is that you have a battery with the same specifications, otherwise you can only choose to replace it.
In fact, in life, only pay more attention to strengthen the battery maintenance, in order to make the battery play the maximum efficiency
If you are conducting wireless charging, because there will be energy loss in the wireless transmission process, and then generate a certain amount of heat, there will be a phenomenon of heat when wireless charging, this is normal.
It is recommended not to charge your mobile phone. Please turn off the screen while you are charging it