Is the balance protection board of the lithium battery pack good?

At present, there are two ways of balancing and multi-series lithium battery systems in the market: traditional passive balancing and active balancing. There are some controversies about whether the lithium battery pack protection board should have a balance function. The following is a point of opinion of the lithium battery manufacturer. 1. It is necessary to bring balance: when the lithium battery pack is processed and stored for a long time, due to the different static power consumption of each circuit of the protection board and the different self-discharge rate of each battery cell, the entire battery pack is formed. The voltage of the battery pack is inconsistent, so there is a distinct pressure difference, but when the capacity is consistent, the equalization has the function of equalizing the voltage of the lithium battery pack, so as to achieve the effect of full charge and full discharge of the battery pack capacity, and maximize the battery pack The effect of. 2. The situation where the balance cannot be used: 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, due to the different capacity losses of each battery cell, a capacity is caused. Poor, the balance of the protection board cannot make up for the battery cell capacity, so we should understand that the lithium battery protection board balances the voltage, and the capacity cannot be supplemented. If the lithium battery pack is within 13 strings, it is recommended that it does not have the equalization function, but the battery must be strictly closed, and the battery capacity and internal resistance must be consistent as much as possible. Lithium batteries are afraid of storage and use! Lithium batteries should be stored in a single unit rather than in a whole group. The battery pack should be tested as soon as possible and handed to the consumer as soon as possible after the assembled battery. 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.