Is the lithium battery pack balanced maintenance board good?

At present, there are two methods for balancing and multi-series lithium battery systems in the market: traditional passive balancing and automatic balancing. There are some controversies about whether the lithium battery pack maintenance board should have a balancing function. The following is a point of opinion of the energy storage electric lithium battery manufacturer. 1. It is necessary to bring a balanced condition: In the condition that the production of lithium battery packs is completed and the storage time is relatively long, because the static power consumption of each path of the maintenance board is different and the self-discharge rate of each cell is different, each string of the entire battery pack is formed The voltage of the battery pack is inconsistent, so there is a significant pressure difference, but under the condition of ensuring the same capacity, the balance has the function of equalizing the voltage of the lithium battery pack, so as to achieve the full charge and discharge effect of the battery pack capacity, so that the battery pack can play The greatest effect. 2. The situation of unbalanced use: Many people think that the lithium battery pack has a balanced use in the middle and later stages of use. In fact, when the battery pack is used in the middle and later stages, because the capacity loss of each battery cell is different, it causes a capacity Poor, it is impossible to make up for the battery cell capacity by maintaining the balance of the board, so we should understand that the voltage of the lithium battery maintenance board is equalized, and the capacity cannot be made up. If the lithium battery pack is within 13 strings, it is recommended that it does not have a balancing function, but it is necessary to strictly close the battery configuration and try to achieve the consistency of the cell capacity and internal resistance. Lithium batteries are afraid of storage, not afraid of use! Lithium batteries should be stored individually instead of in the entire group. After the battery pack is assembled, the battery pack should be delivered to the consumer as soon as the test is over. When charging a group of lithium batteries in series, ensure that each battery is charged in a balanced manner, otherwise the performance and life of the entire group of batteries will be affected during use. Commonly used equalization charging techniques include constant shunt resistance equalization charging, on-off shunt resistance equalization charging, uniform battery voltage equalization charging, switched capacitor equalization charging, step-down converter equalization charging, inductance equalization charging, etc. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.