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BQ40Z80: 低温放电,剩余容量,满电容量,突变到0,SOC一直显示100%不变

Part Number: BQ40Z80
Other Parts Discussed in Thread: GPCRB, GPCCHEM

客户反馈低温-30℃进行300mA放电时,SOC一直显示100%,经过复测,发现剩余及满电容量,突变到0,SOC一直显示100%,阻抗表也没出现紊乱,正常数值。

该5s10Ah的锂电池组为批产项目,进行过CHEM ID,Golden learning,更新过Ra table,形成了批量生产文件。

下图是出现故障时各寄存器状态,以及阻抗表信息,.csv文件为保存的数据。

SOC-100-20210623.zip