How to distinguish the quality of lithium iron phosphate battery packs? How to judge the quality of lithium battery pack combinations? Recently, many people have asked us this question. It seems that how to detect the quality of lithium battery packs has become an issue of concern to everyone.
The method of testing consistency is to connect the cells that need to be tested in series, 4 in a group or 6 in a group, and do 1C charging and 3C discharging. During the charging and discharging process, just look at the difference in the rise and fall of the cell voltage. .
After the consistency test is qualified, the test method for the self-discharge rate is: charge the battery with the same capacity and let it stand for one month, and then measure its capacitance value.
The test method for high rate is: use the highest rate test according to the conditions provided by the lithium battery UPS manufacturer. If there is an obvious serious heating problem during the charging and discharging process, the quality of the battery is not good. Generally speaking, the power lithium battery pack should meet the safety requirements of 3C charging and 30C discharging.
As a general requirement, lithium iron phosphate battery packs have 85% capacity after 2000 discharges at 1C, and 80% capacity after 3000 discharges.
Lithium iron phosphate battery packs are being used more and more widely due to their higher safety, especially for UPS lithium batteries, there is huge room for development. With the continuous advancement of technology and people’s gradual attention to environmental protection, traditional lead-acid batteries have gradually faded out of people’s sight, and lithium battery packs will become a better choice for people.
Post time: Dec-13-2021