BQ34Z100-G1: 更换电池SOC显示0%

您好

1，2，3，请参考下面内容

System side gauges have measures in place to limit the inaccuracy of SOC which arises from swapping out a battery. For system side gauges, when inserting the battery, it has to be in a well relaxed state for the gauge to take an open circuit voltage (OCV) reading to be able estimate what the initial SOC is. Then for accuracy to be ensured, you have to discharge to empty or charge to full for the gauge to have a proper reference point. You IT gauges, you will further need a qmax and resistance updates to occur to have even better accuracy. But these require several cycles with rest periods included to have occurred

4，烧录量产文件下一步写入制造商信息，然后校正电压电流，然后测试PCBA，详细请参考下面文档2.4.2 阻抗跟踪电量计量产流程分步详述

www.ti.com.cn/.../zhcaaf7.pdf

您好， It could be caused by a surge current when the battery is inserted into the system, the voltage could be pulled low upon plug in, and gauge samples a low voltage, when sending the reset command, the voltage is stabilized, then the SOC could be relatively accurate.

    bq34z100 is not a system side gauge, a reset and a VCT followed by a long relax is required to synchronize the capacity