Due to the material of the lithium battery itself, it cannot be overcharged (overcharging of the lithium battery is prone to the risk of explosion), overdischarge (overdischarging of the lithium battery is likely to cause damage to the battery cell, cause the battery cell to fail and cause the battery cell to be scrapped), overcurrent (Lithium battery overcurrent will easily increase the temperature of the battery cell, which will shorten the life of the battery cell, and cause the internal thermal runaway to cause the battery cell to explode), short circuit (a short circuit of the lithium battery will easily increase the temperature of the battery cell, resulting in thermal runaway inside the cell , leading to cell explosion) and ultra-high temperature charging and discharging, so lithium battery packs will always appear with a delicate BMS protection board and a current fuse.
First of all, the BMS protection board is an important part of the lithium battery. Its main function is to charge and discharge the lithium batteries connected in parallel and in series. When the battery is fully charged, it can ensure that the voltage value of each monomer inside the battery remains consistent, so Make sure each battery is fully charged. In addition, the BMS protection board can also monitor the overcurrent, short circuit, overtemperature, overvoltage and other conditions of the battery.
Secondly, the short circuit of the lithium battery is very dangerous, because the short circuit will cause a large amount of current and heat, which will greatly affect the life of the battery. The customized lithium battery BMS protection board can be used when a large current occurs Immediately shut down so it won't power the battery anymore.