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BQ40Z80: SOC与剩余容量(RemCap)下降过快,或直接跳0,满充容量(FullChgCap)偏低

Part Number: BQ40Z80
Other Parts Discussed in Thread: BQSTUDIO,

近期发现我们在应用现场的4例电池有出现3种问题:

1. 初始剩余容量偏低(正常3300左右,问题电池1000不到);

2. SOC和剩余容量下降明显过快,甚至直接跳0。

一些问题截图如下:

我们将问题电池拿回实验室测试,部分电池无法复现问题,可以复现的电池,用bqstudio抓取数据如下:

编号440电池-电量计监控数据.zip