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BQ34Z100-G1: Wrong current value caused SOC increase.

Part Number: BQ34Z100-G1
Other Parts Discussed in Thread: BQSTUDIO, , BQ40Z50-R1

Hi,

Sometimes, there is about +2mA wrong current in my pack. I check cell voltage not changed but RSOC increased that caused by RM in log data. BQ40Z50-R1 has "Coulomb Counter Deadband" function for user to setting, it can improve wrong current value caused RSOC increase by set large value. But I can't find it in BQ34Z100-G1 Bqstudio. How to modify it or other solution to improve wrong current value caused RSOC increase?

  • What calibration steps did you perform?
    What is your sense resistor value?
    We also recommend disabling the DoDWT bit in Pack Configuration B to ensure that OCV updates will correct any drift in capacity.