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BQ3060保护板设计容量20Ah,实际容量是23.5Ah,循环使用18周后FCC变成31.5Ah,充电相对电量一致维持在64%,是什么原因?

Other Parts Discussed in Thread: GPCCEDV

采购了一款采用BQ3060芯片的电池保护板,3串聚合物电池原

Design Capacity = 20000
Design Energy = 222000
Full Charge Capacity = 22048
DOD at EDV2 = 16154

但是电池的实际容量是23.5Ah。在客户处循环测试18周以后,FCC容量变成31.5Ah,充电时相对电量一致是64%左右。

是因为实际容量超过设计容量过高,导致循环过程中FCC不断加大吗?

我这里做应用的,不是做设计,也不太懂细节,就是希望哪位大侠能协助一下,BA3060板子,如果和厂家最早设计容量不同的话如何改容量,谢谢