If the 12v lithium battery generates abnormal heat during charging or use, we must handle it with caution once this happens, because the heat may reduce the battery capacity and shorten the battery life. 12v lithium battery manufacturers: The reasons for charging and heating are poor chargers, quality problems, etc.
Under normal circumstances, the charging heat of 12v lithium battery is similar, not very high, but it is not low temperature, within the normal range, will not damage the battery, but if the battery overheats and the charger does not turn on the light This phenomenon needs to be dealt with seriously.
The 12v lithium battery manufacturer said: The reason why the lithium battery becomes excessively hot and even does not turn on the light during charging is mainly due to the following two reasons:
1. Fever caused by charger problem. General chargers have no pulse function and no negative pulse depolarization function. This type of charger usually cannot maintain a constant voltage in the later stage of charging, which causes the battery voltage to exceed the allowable value, resulting in a large amount of gas out of the battery, loss of water, and heat. When the battery generates a small amount of heat, it is normal heat. If the heat is abnormal, it is the cause of the charger when the battery performance is good.
2. The battery is aging, the internal resistance becomes large, the electrolyte is dried up, and the internal short circuit is caused by the battery's own problems. With the increase in the number of times the battery is used, including discharging and charging, the electrolyte in the battery gradually loses, which causes the battery to heat up during the electrochemical reaction; in addition, the battery solution forms sulfide crystals during the charging and discharging process, and the precipitate sticks to the plate. , It will cause the battery resistance to increase and heat; and if the battery heats up due to a short circuit, the best way is to replace the battery with a new one.
During the charging process of lithium batteries, you must always remember the instructions of the lithium battery manufacturer and strictly follow them, especially in the charging time. Don't think that the longer the time, the greater the capacity, and the longer the time will damage the battery or even cause a fire.
