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BQ27520-G4: Unable to complete Learning Cycle, gauge never updates to "02"

Part Number: BQ27520-G4

Hello, 

I am not able to complete a Learning Cycle for our battery per the instructions in SLUA902. Qmax updates and "Update Status 0" changes to 01 after charging, but the Ra0 table never updates and "Update Status 0" never changes to "02" after discharging/relaxing. 

I have attached the Log file. Below are the custom Data Flash parameters for our 2000mAhr battery. Closest Chem ID was found to be 256 with 2.88% DOD deviation.  Any help would be greatly appreciated. Thanks.

  • Design Capacity = 2000mAhr

  • Minimum Operating Voltage = 3.0V

  • Reserve Capacity (amount of useable energy left when gauge reads 0% SOC) = 0

  • Minimum Average Discharge Current in Active Mode = 130mA

  • Minimum Average Charge Current = 115mA

  • Maximum Average in Standby Mode = 30mA

  • Sleep Current = 1mA

  • Maximum Taper Current = 200mA

  • Charging Voltage = 4.2V

  • Typical System Current in Standby Mode = -10mA

  • State of Health (SOH) monitor current = -100mA

  • SOC1 Alarm Set = 150mAh

  • SOC1 Alarm Cleared = 175mAh

  • Thermistor = use external

  • SOC smoothing = enabled

20220908_LearningCycle_ParametersUpdated.log