Explanation of related problems of lithium battery charger

Regarding the lithium battery products to be charged, especially the high-capacity products of electric vehicle batteries, we are very cautious. There are also some questions in the selection and use of electric vehicle chargers, and then I will tell you questions about lithium battery chargers and I want to answer you Can I mix chargers? Electric vehicle chargers cannot be used at the same time. For example, the maximum voltage of 48V and 60V lead-acid battery chargers is approximately 59V. The maximum voltage of a 60V charger is approximately 74V. If you use a 48V charger to charge a 60V battery, the charger will not break, but it will not charge either. After a period of time, it is recommended to recharge, because by detecting the feedback of the battery voltage, it is judged that the charger is fully charged, which is actually virtual. On the contrary, if you use a 60v charger to charge a 48v battery, it will overcharge. First, it will cause the battery to lose water, which will make the battery capacity slightly larger in a short time, but the life will be shortened; the second is the risk of swelling of the new battery. Overcharging does not necessarily cause the battery to swell, but it basically causes the battery temperature to rise. If the battery continues to be overcharged, the battery is likely to swell. Even lead-acid batteries and lithium batteries of the same specification cannot be used at the same time. Because the two materials are different, the voltage platform is different, and the safety requirements of the lithium battery are higher, so the designed charging parameters and functions are also different. How does the charger overheat appear, and what are the hazards? The working principle of the charger is to convert alternating current into direct current to charge the battery. Its core essence is a kind of conversion power supply. A certain amount of heat cannot be prevented. Regarding a charger that uses a fan to dissipate heat, maintaining a good air duct and choosing a reliable and high-quality fan are the keys to ensuring charging safety. If the charger overheats for a long time, the internal temperature is too high, the parts and wires are easily aging, and the fan lubrication fails, which will further aggravate the temperature rise and form a vicious circle, which will damage the charger, damage the battery, or cause a fire. What if the charger gets water? Charging in the rain or in a humid environment will cause the water to fill up the charger, which is a very dangerous thing. As a conversion power supply, its internal AC circuit and DC circuit, AC circuit or the entire circuit board are easy to burn the circuit board and control components. At the same time, the current in the water medium, close contact with the human body will cause irreparable damage ; If the charger is still working, but the voltage control circuit fails, charge the drum battery. Therefore, when the charger finds water accumulation, it should immediately disconnect the power supply. It can be seen from the above answers that the lithium battery charger cannot be used in combination, and it cannot be wet. The charger should stop charging in time when it encounters overheating. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.