Do lithium batteries need to protect the board?

Do lithium batteries need to protect the board? Lithium batteries cannot be used without a protective board. Take the 18650 battery pack as an example. If the 18650 lithium battery does not have a protection board, first you don’t know how far the lithium battery is charged. The second is that you cannot charge the battery without a protection board, because the protection board has to be tied up with 2 wires. Connected to a lithium battery. Don't think that the quality of the lithium battery you bought is good without the protection board, but if it takes a long time, various problems will occur. When fully charged, the lithium battery protection board is the charging and discharging protection of the lithium battery pack in series, which can ensure that the voltage difference between the batteries is less than the set value, and can achieve the balance of each battery in the battery pack, thereby effectively improving Charging effect in series charging mode. At the same time, it can test the battery overvoltage, overcharge, overdischarge, short circuit and overheat of each lithium battery spot welding machine in the battery pack to protect and extend the battery life. Under-voltage protection can warn each single cell from damage due to over-discharge during discharge. It’s clear that the statement is about the purpose of the protection board and I don’t know much about the ideas that arise. Because the use of the protection board for lithium batteries is equivalent to an extra protective barrier, the purpose of the protection board is to ensure the safety of lithium batteries and extend the service life. Without the protection board, not only the life span is difficult to guarantee, but also very dangerous. Therefore, when the lithium battery can be completely immune to overcharge, overdischarge, etc., when the lithium battery packaging equipment can completely replace the protection board in the design of the lithium battery itself, the lithium battery can not need the protection board, but at this stage, the lithium battery The battery still needs to protect the board. 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. Previous: 18650 battery performance parameter analysis