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BQ40Z50-R2: 剩余电量不准

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: GPCCHEM

3S电池,当电压掉到11.6V(Cell为3.87V)时剩余电量变为0。reset后剩余电量变为正常(50%)

ChemID是上传(www.ti.com/.../GPCCHEM)电池充放电曲线获取的。电压电流都校准过。

[Gas Gauging][Design][Design Capacity mAh] = 2000 mAh
[Gas Gauging][Design][Design Capacity cWh] = 2280 cWh
[Gas Gauging][Design][Design Voltage] = 11400 mV


[Gas Gauging][State][Qmax Cell 1] = 1699 mAh
[Gas Gauging][State][Qmax Cell 2] = 1693 mAh
[Gas Gauging][State][Qmax Cell 3] = 1676 mAh
[Gas Gauging][State][Qmax Cell 4] = 0 mAh
[Gas Gauging][State][Qmax Pack] = 1676 mAh
[Gas Gauging][State][Qmax Cycle Count] = 58
[Gas Gauging][State][Update Status] = 0x0e

[Gas Gauging][Condition Flag][Max Error Limit] = 100 %
[Gas Gauging][Max Error][Time Cycle Equivalent] = 24 h
[Gas Gauging][Max Error][Cycle Delta] = 0.05 %