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BQ34Z100: SOC abnormal jump after POR

Part Number: BQ34Z100

Hi Team,

My Customer uses BQ34Z100 for 5s cells gauge and they carried out a battery pack unplugging experiment. 34Z100 is in system board, not in battery pack. They read a SOC in relax mode as an initial value. Secondly they remove battery pack for several minutes and reconnected it to read SOC value in relax mode. They found that the SOC values for the two readings were different, is this normal? Log Data is attached(First file is before removing and second is after).

Thu Apr 28 18:04:00 CST 2022



Device Version Info = 0016_0_16

BQZ Device Name = bq34z100G1

BQZ Firmware Version = 0_16





Sample,DateTime,ElapsedTime,Control,CtrlStatus,StateofCharge,MaxError,RemCap,FullChgCap,Voltage,Current,AvgCurrent,Temperature,AverageTimeToEmpty,AverageTimeToFull,AvailableEnergy,AveragePower,InternalTemperature,CycleCnt,StateofHealth,ChargeVoltage,ChargeCurrent,PackConfig,Flags,Flags B,GridNumber,LearnedStatus,DoDatEOC,Qstart,TrueRC,TrueFCC,StateTime,DOD0PassedQ,DOD0Time,DOD0,QmaxDOD0,QmaxPassedQ,QmaxTime,LogRowTime(ms),LogStatus

1,2022-04-28 18:04:12,10.010,0x0016,0x6005,50,-113,1104,2213,18500,-28,-50,29.7,1325,65535,4243,-104,29.7,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,983,1104,2213,235,126,1,7360,0,126,1,2140,SUCCESS

2,2022-04-28 18:04:22,20.025,0x0016,0x6005,50,-113,1104,2213,18500,-29,-39,29.7,1698,65535,4243,-107,29.7,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,983,1104,2213,245,126,1,7360,0,126,1,2152,SUCCESS

3,2022-04-28 18:04:32,30.028,0x0016,0x6005,50,-113,1104,2213,18500,-29,-34,29.6,1948,65535,4243,-107,29.6,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,983,1104,2213,255,126,1,7360,0,126,1,2192,SUCCESS

拔掉电池

4,2022-04-28 18:04:42,40.032,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2438,ERROR : Please check C:\Users\Anker\Desktop\pull.log.err

5,2022-04-28 18:04:53,50.834,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2439,ERROR : Please check C:\Users\Anker\Desktop\pull.log.err

Thu Apr 28 18:06:07 CST 2022



Device Version Info = 0100_0_16

BQZ Device Name = bq34z100G1

BQZ Firmware Version = 0_16





Sample,DateTime,ElapsedTime,Control,CtrlStatus,StateofCharge,MaxError,RemCap,FullChgCap,Voltage,Current,AvgCurrent,Temperature,AverageTimeToEmpty,AverageTimeToFull,AvailableEnergy,AveragePower,InternalTemperature,CycleCnt,StateofHealth,ChargeVoltage,ChargeCurrent,PackConfig,Flags,Flags B,GridNumber,LearnedStatus,DoDatEOC,Qstart,TrueRC,TrueFCC,StateTime,DOD0PassedQ,DOD0Time,DOD0,QmaxDOD0,QmaxPassedQ,QmaxTime,LogRowTime(ms),LogStatus

1,2022-04-28 18:06:20,10.192,0x0016,0x6005,52,-113,1135,2215,18505,-29,-28,29.3,2432,65535,3943,-107,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1135,2215,78,1,0,7984,0,1,0,2155,SUCCESS

2,2022-04-28 18:06:29,20.031,0x0016,0x6005,52,-113,1135,2215,18505,-28,-28,29.3,2432,65535,3943,-104,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1135,2215,88,1,0,7984,0,1,0,2150,SUCCESS

3,2022-04-28 18:06:40,30.223,0x0016,0x6005,52,-113,1135,2215,18505,-28,-28,29.3,2432,65535,3943,-104,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1135,2215,98,1,0,7984,0,1,0,2230,SUCCESS

4,2022-04-28 18:06:49,40.043,0x0016,0x6005,52,-113,1135,2215,18505,-28,-28,29.3,2432,65535,3943,-104,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1135,2215,108,1,0,7984,0,1,0,2191,SUCCESS

5,2022-04-28 18:07:00,50.276,0x0016,0x6005,52,-113,1135,2215,18505,-28,-28,29.3,2432,65535,3943,-107,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1135,2215,118,1,0,7984,0,1,0,2171,SUCCESS

6,2022-04-28 18:07:09,60.051,0x0016,0x6005,52,-113,1135,2215,18505,-28,-28,29.3,2432,65535,3943,-104,29.2,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1134,2215,128,2,0,7984,0,2,0,2121,SUCCESS

7,2022-04-28 18:07:20,70.304,0x0016,0x6005,52,-113,1135,2215,18505,-29,-28,29.3,2432,65535,3943,-104,29.3,0,87,21000,1300,0x09D8,0x0111,0x0400,5,6,992,1079,1134,2215,138,2,0,7984,0,2,0,2158,SUCCESS