What are the precautions for series and parallel connection of lithium iron phosphate battery packs?

Precautions for series and parallel connection of lithium iron phosphate battery packs: ⒈Do not mix lithium iron phosphate battery packs of different brands, different capacities, or new and old lithium batteries. Choose batteries with the same performance. When the battery power is low, replace all the batteries. When using lithium battery packs in series, use the same type of battery. Pay attention to the polarity of the battery. If the polarity of one battery is installed reversely, the voltage of the entire string of batteries will be reduced instead of adding a new voltage. ⒉If different capacity or new and old lithium battery packs are used together, leakage, zero voltage, etc. may occur. This is because during the charging process, the capacity difference causes some batteries to be overcharged and some batteries are not fully charged. During discharging, some batteries with high capacity are not fully discharged, and batteries with low capacity are overdischarged. In such a vicious circle, the battery is damaged and leaks or low (zero) voltage. ⒊Generally, lithium iron phosphate battery packs are used in series and parallel to match lithium battery cores. The pairing standard: lithium battery core voltage difference ≤10mV, lithium battery core internal resistance difference ≤5m, lithium battery core capacity difference ≤20mA. ⒋Remove the lithium battery pack protection circuit board, and be optimistic about whether the battery protection board can be used in your serial or parallel circuit. For example: the 4.2V protection board used to be connected in series to 8.4V, then the battery protection board can no longer be used Up. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to buy lead-acid UPS batteries?