I am trying to configure data flash parameters for my 4s battery pack but I have some questions. Could you help me about that? You can see my data flash parameters on this link:
[Header] bq EVSW Version = 0.9.80 DeviceName = bq20z655-R1 v0.03 Time = 2.03.2019 20:19:48 [Voltage(1st Level Safety)] LT COV Threshold = 4300 LT COV Recovery = 4100 ST COV Threshold = 4500 ST COV Recovery = 4300 HT COV Threshold = 4250 HT COV Recovery = 4000 COV Time = 2 CUV Threshold = 2300 CUV Time = 2 CUV Recovery = 2600 [Current(1st Level Safety)] OC (1st Tier) Chg = 15000 OC (1st Tier) Chg Time = 2 OC Chg Recovery = 200 OC (1st Tier) Dsg = 14000 OC (1st Tier) Dsg Time = 2 OC Dsg Recovery = 300 OC (2nd Tier) Chg = 8000 OC (2nd Tier) Chg Time = 1 OC (2nd Tier) Dsg = 8000 OC (2nd Tier) Dsg Time = 1 Current Recovery Time = 8 AFE OC Dsg = 14 AFE OC Dsg Time = 0F AFE OC Dsg Recovery = 5 AFE SC Chg Cfg = 00 AFE SC Dsg Cfg = 8A AFE SC Recovery = 3 [Temperature(1st Level Safety)] OT1 Chg Threshold = 72.0 OT1 Chg Time = 2 OT1 Chg Recovery = 65.0 OT2 Chg Threshold = 72.0 OT2 Chg Time = 2 OT2 Chg Recovery = 65.0 OT1 Dsg Threshold = 90.0 OT1 Dsg Time = 2 OT1 Dsg Recovery = 78.0 OT2 Dsg Threshold = 90.0 OT2 Dsg Time = 2 OT2 Dsg Recovery = 78.0 Hi Dsg Start Temp = 63.0 [Host Comm(1st Level Safety)] Host Watchdog Timeout = 0 [Voltage(2nd Level Safety)] LT SOV Threshold = 4400 ST SOV Threshold = 4600 HT SOV Threshold = 4500 SOV Time = 0 PF SOV Fuse Blow Delay = 0 SUV Threshold = 2000 SUV Time = 0 Rest CIM Current = 5 Rest CIM Fail Voltage = 1000 Rest CIM Time = 0 CIM Battery Rest Time = 1800 Rest CIM Check Voltage = 3000 Active CIM Fail Voltage = 1000 Active CIM Time = 0 Active CIM Check Voltage = 3000 PFIN Detect Time = 0 PF Min Fuse Blow Voltage = 8000 [Current(2nd Level Safety)] SOC Chg = 10000 SOC Chg Time = 0 SOC Dsg = 10000 SOC Dsg Time = 0 [Temperature(2nd Level Safety)] SOT1 Chg Threshold = 65.0 SOT1 Chg Time = 0 SOT2 Chg Threshold = 65.0 SOT2 Chg Time = 0 SOT1 Dsg Threshold = 75.0 SOT1 Dsg Time = 0 SOT2 Dsg Threshold = 75.0 SOT2 Dsg Time = 0 Open Thermistor = -33.3 Open Time = 0 [FET Verification(2nd Level Safety)] FET Fail Limit = 20 FET Fail Time = 0 [AFE Verification(2nd Level Safety)] AFE Check Time = 0 AFE Fail Limit = 0 AFE Fail Recovery Time = 20 AFE Init Retry Limit = 6 AFE Init Limit = 20 [Fuse Verification(2nd Level Safety)] Fuse Fail Limit = 2 Fuse Fail Time = 0 [Charge Temp Cfg(Charge Control)] JT1 = 0.0 JT2 = 12.0 JT2a = 30.0 JT3 = 45.0 JT4 = 55.0 Temp Hys = 1.0 [Pre-Charge Cfg(Charge Control)] Pre-chg Voltage Threshold = 1000 Pre-chg Recovery Voltage = 1100 Pre-chg Current = 2000 [Charge Cfg(Charge Control)] LT Chg Voltage = 16800 LT Chg Current1 = 6500 LT Chg Current2 = 6500 LT Chg Current3 = 6500 ST1 Chg Voltage = 16800 ST1 Chg Current1 = 6500 ST1 Chg Current2 = 6500 ST1 Chg Current3 = 6500 ST2 Chg Voltage = 16800 ST2 Chg Current1 = 6500 ST2 Chg Current2 = 6500 ST2 Chg Current3 = 6500 HT Chg Voltage = 16800 HT Chg Current1 = 6500 HT Chg Current2 = 6500 HT Chg Current3 = 6500 Cell Voltage Threshold1 = 3900 Cell Voltage Threshold2 = 4000 Cell Voltage Thresh Hys = 10 [Termination Cfg.(Charge Control)] Maintenance Current = 0 Taper Current = 100 Taper Voltage = 100 Current Taper Window = 40 TCA Set % = -1 TCA Clear % = 95 FC Set % = -1 FC Clear % = 98 [Cell Balancing Cfg(Charge Control)] Min Cell Deviation = 123 [Charging Faults(Charge Control)] Over Charging Voltage = 500 Over Charging Volt Time = 2 Over Charging Current = 500 Over Charging Curr Time = 2 Over Charging Curr Recov = 100 Depleted Voltage = 8000 Depleted Voltage Time = 2 Depleted Recovery = 8500 Over Charge Capacity = 600 Over Charge Recovery = 2 CMTO = 43200 PCMTO = 3600 Charge Fault Cfg = 00 [External Charge Control(Charge Control)] Chg Inhibit Threshold = 10 Chg Inhibit Hold Time = 0 [Data(SBS Configuration)] Rem Cap Alarm = 340 Rem Energy Alarm = 7340 Rem Time Alarm = 15 Init Battery Mode = 0081 Design Voltage = 14400 Spec Info = 0031 Manuf Date = 26-�ub-2019 Ser. Num. = 0001 Cycle Count = 5 CC Threshold = 5440 CC % = 80 CF MaxError Limit = 100 Design Capacity = 6800 Design Energy = 9790 Manuf Name = Battery Device Name = battery Device Chemistry = LION [Configuration(SBS Configuration)] TDA Set % = 6 TDA Clear % = 8 FD Set % = 0 FD Clear % = 5 TDA Set Volt Threshold = 10000 TDA Set Volt Time = 5 TDA Clear Volt = 10100 FD Set Volt Threshold = 10000 FD Volt Time = 5 FD Clear Volt = 10100 [Manufacturer Data(System Data)] Pack Lot Code = 0000 PCB Lot Code = 0000 Firmware Version = 0000 Hardware Revision = 0000 Cell Revision = 0000 [Manufacturer Info(System Data)] Manuf. Info 0 = 0123456789ABCDEF0123456789ABCDE Manuf. Block 1 = 0123456789ABCDEF0123 Manuf. Block 2 = 0123456789ABCDEF0123 Manuf. Block 3 = 0123456789ABCDEF0123 [Lifetime Data(System Data)] Lifetime Max Temp = 103.3 Lifetime Min Temp = -21.6 Lifetime Max Cell Voltage = 5428 Lifetime Min Cell Voltage = 0 Lifetime Max Pack Voltage = 17080 Lifetime Min Pack Voltage = 8608 Lifetime Max Chg Current = 4237 Lifetime Max Dsg Current = -11501 Lifetime Max Chg Power = 66620 Lifetime Max Dsg Power = -155080 Life Max AvgDsg Cur = -2000 Life Max AvgDsg Pow = -3022 Life Avg Temp = 16.4 [Lifetime Temp Samples(System Data)] LT Temp Samples = 106653 [Registers(Configuration)] Operation Cfg A = 6F0B Operation Cfg B = 6468 Operation Cfg C = 1570 Permanent Fail Cfg = 0000 Permanent Fail Cfg 2 = 0000 Non-Removable Cfg = 0000 [AFE(Configuration)] AFE.State_CTL = 00 SMB Sync Command = FF SMB Sync Delay = 50 [LED Cfg(LED Support)] LED Flash Period = 512 LED Blink Period = 1024 LED Delay = 100 LED Hold Time = 4 CHG Flash Alarm = 10 CHG Thresh 1 = 0 CHG Thresh 2 = 20 CHG Thresh 3 = 40 CHG Thresh 4 = 60 CHG Thresh 5 = 80 DSG Flash Alarm = 10 DSG Thresh 1 = 0 DSG Thresh 2 = 20 DSG Thresh 3 = 40 DSG Thresh 4 = 60 DSG Thresh 5 = 80 Sink Current = 3 LCD Freq = 35 [Power(Power)] Flash Update OK Voltage = 7500 Shutdown Voltage = 7000 Shutdown Time = 10 Cell Shutdown Voltage = 1750 Cell Shutdown Time = 10 Charger Present = 3000 Sleep Current = 10 Bus Low Time = 5 Cal Inhibit Temp Low = 5.0 Cal Inhibit Temp High = 45.0 Sleep Voltage Time = 5 Sleep Current Time = 20 Wake Current Reg = 00 Sealed Ship Delay = 5 [IT Cfg(Gas Gauging)] Load Select = 7 Load Mode = 0 Term Voltage = 10000 User Rate-mA = 0 User Rate-mW = 0 Reserve Cap-mAh = 0 Reserve Cap-mWh = 0 Ra Max Delta = 44 Max IR Correct = 400 Transient Factor Charge = 180 Transient Factor Discharge = 180 [Current Thresholds(Gas Gauging)] Dsg Current Threshold = 90 Chg Current Threshold = 50 Quit Current = 10 Dsg Relax Time = 1 Chg Relax Time = 60 [State(Gas Gauging)] Qmax Cell 0 = 6800 Qmax Cell 1 = 6800 Qmax Cell 2 = 6800 Qmax Cell 3 = 6800 Qmax Pack = 6800 Update Status = 02 Cell 0 Chg dod at EoC = 0 Cell 1 Chg dod at EoC = 0 Cell 2 Chg dod at EoC = 0 Cell 3 Chg dod at EoC = 0 Avg I Last Run = -2000 Avg P Last Run = -3022 Delta Voltage = 0 Max Avg I Last Run = -2000 Max Avg P Last Run = -3022 [R_a0(Ra Table)] Cell0 R_a flag = FF55 Cell0 R_a 0 = 38 Cell0 R_a 1 = 41 Cell0 R_a 2 = 43 Cell0 R_a 3 = 44 Cell0 R_a 4 = 42 Cell0 R_a 5 = 42 Cell0 R_a 6 = 45 Cell0 R_a 7 = 48 Cell0 R_a 8 = 49 Cell0 R_a 9 = 52 Cell0 R_a 10 = 56 Cell0 R_a 11 = 64 Cell0 R_a 12 = 74 Cell0 R_a 13 = 128 Cell0 R_a 14 = 378 [R_a1(Ra Table)] Cell1 R_a flag = FF55 Cell1 R_a 0 = 38 Cell1 R_a 1 = 41 Cell1 R_a 2 = 43 Cell1 R_a 3 = 44 Cell1 R_a 4 = 42 Cell1 R_a 5 = 42 Cell1 R_a 6 = 45 Cell1 R_a 7 = 48 Cell1 R_a 8 = 49 Cell1 R_a 9 = 52 Cell1 R_a 10 = 56 Cell1 R_a 11 = 64 Cell1 R_a 12 = 74 Cell1 R_a 13 = 128 Cell1 R_a 14 = 378 [R_a2(Ra Table)] Cell2 R_a flag = FF55 Cell2 R_a 0 = 38 Cell2 R_a 1 = 41 Cell2 R_a 2 = 43 Cell2 R_a 3 = 44 Cell2 R_a 4 = 42 Cell2 R_a 5 = 42 Cell2 R_a 6 = 45 Cell2 R_a 7 = 48 Cell2 R_a 8 = 49 Cell2 R_a 9 = 52 Cell2 R_a 10 = 56 Cell2 R_a 11 = 64 Cell2 R_a 12 = 74 Cell2 R_a 13 = 128 Cell2 R_a 14 = 378 [R_a3(Ra Table)] Cell3 R_a flag = FF55 Cell3 R_a 0 = 38 Cell3 R_a 1 = 41 Cell3 R_a 2 = 43 Cell3 R_a 3 = 44 Cell3 R_a 4 = 42 Cell3 R_a 5 = 42 Cell3 R_a 6 = 45 Cell3 R_a 7 = 48 Cell3 R_a 8 = 49 Cell3 R_a 9 = 52 Cell3 R_a 10 = 56 Cell3 R_a 11 = 64 Cell3 R_a 12 = 74 Cell3 R_a 13 = 128 Cell3 R_a 14 = 378 [R_a0x(Ra Table)] xCell0 R_a flag = FFFF xCell0 R_a 0 = 38 xCell0 R_a 1 = 41 xCell0 R_a 2 = 43 xCell0 R_a 3 = 44 xCell0 R_a 4 = 42 xCell0 R_a 5 = 42 xCell0 R_a 6 = 45 xCell0 R_a 7 = 48 xCell0 R_a 8 = 49 xCell0 R_a 9 = 52 xCell0 R_a 10 = 56 xCell0 R_a 11 = 64 xCell0 R_a 12 = 74 xCell0 R_a 13 = 128 xCell0 R_a 14 = 378 [R_a1x(Ra Table)] xCell1 R_a flag = FFFF xCell1 R_a 0 = 38 xCell1 R_a 1 = 41 xCell1 R_a 2 = 43 xCell1 R_a 3 = 44 xCell1 R_a 4 = 42 xCell1 R_a 5 = 42 xCell1 R_a 6 = 45 xCell1 R_a 7 = 48 xCell1 R_a 8 = 49 xCell1 R_a 9 = 52 xCell1 R_a 10 = 56 xCell1 R_a 11 = 64 xCell1 R_a 12 = 74 xCell1 R_a 13 = 128 xCell1 R_a 14 = 378 [R_a2x(Ra Table)] xCell2 R_a flag = FFFF xCell2 R_a 0 = 38 xCell2 R_a 1 = 41 xCell2 R_a 2 = 43 xCell2 R_a 3 = 44 xCell2 R_a 4 = 42 xCell2 R_a 5 = 42 xCell2 R_a 6 = 45 xCell2 R_a 7 = 48 xCell2 R_a 8 = 49 xCell2 R_a 9 = 52 xCell2 R_a 10 = 56 xCell2 R_a 11 = 64 xCell2 R_a 12 = 74 xCell2 R_a 13 = 128 xCell2 R_a 14 = 378 [R_a3x(Ra Table)] xCell3 R_a flag = FFFF xCell3 R_a 0 = 38 xCell3 R_a 1 = 41 xCell3 R_a 2 = 43 xCell3 R_a 3 = 44 xCell3 R_a 4 = 42 xCell3 R_a 5 = 42 xCell3 R_a 6 = 45 xCell3 R_a 7 = 48 xCell3 R_a 8 = 49 xCell3 R_a 9 = 52 xCell3 R_a 10 = 56 xCell3 R_a 11 = 64 xCell3 R_a 12 = 74 xCell3 R_a 13 = 128 xCell3 R_a 14 = 378 [Device Status Data(PF Status)] Saved PF Flags 1 = 0000 Saved PF Flags 2 = 0000 Fuse Flag = 00 PF Voltage = 0 PF C4 Voltage = 0 PF C3 Voltage = 0 PF C2 Voltage = 0 PF C1 Voltage = 0 PF Current = 0 PF Temperature = 0.0 PF Batt Stat = 00 PF RC-mAh = 0 PF RC-10mWh = 0 PF Chg Status = 0000 PF Safety Status 1 = 0000 PF Safety Status2 = 0000 Saved 1st PF Flags 1 = 0000 Saved 1st PF Flags 2 = 0000 [AFE Regs(PF Status)] AFE Status = 00 AFE Output = 00 AFE State = 00 AFE Function = 00 AFE Cell Select = 00 AFE OLV = 00 AFE OLT = 00 AFE SCC = 00 AFE SCD = 00 [Data(Calibration)] CC Gain = 0.009 CC Delta = 0.009 Ref Voltage = 1226.75 AFE Pack Gain = 703.95 CC Offset = -0.273 Board Offset = -27.4 Int Temp Offset = 0.0 Ext1 Temp Offset = 0.0 Ext2 Temp Offset = 0.0 [Config(Calibration)] CC Current = 3000 Voltage Signal = 16800 Temp Signal = 298.0 CC Offset Time = 250 ADC Offset Time = 32 CC Gain Time = 250 Voltage Time = 1984 Temperature Time = 32 Cal Mode Timeout = 300 [Temp Model(Calibration)] Ext Coef 1 = -28285 Ext Coef 2 = 20848 Ext Coef 3 = -7537 Ext Coef 4 = 401.2 Ext Min AD = 0 Ext Max Temp = 401.2 Int Coef 1 = 0 Int Coef 2 = 0 Int Coef 3 = -11136 Int Coef 4 = 575.4 Int Min AD = 0 Int Max Temp = 575.4 [Current(Calibration)] Filter = 239 Deadband = 3 CC Deadband = 10.0
- For termination:
Could you please check the following data?(Note that 100mA charging cut-off current)
- Taper Current=100mA
- Discharge Current Threshold= 90mA
- Charge Current Threshold=90mA
- Quit Current= 10mA
- CONTROL for Cell Balancing:
How can I check the cell balancing function if it works? I would like to be sure and I would like check this function. Can I use [CB]flag for that?
- For gg Files:
Could you please check my gg files(2s and 4s configuration)? As you can see, update status is 0x0E and min cell deviation is 1350 for 2serial configuration. But cell balancing function is not working( CB flag = Low). How can I solve this problem? I know that I have to do learning cycle for my data that’s why I will do it. But now I would like to do test for cell balancing function as soon as possible. Therefore I’m using gg file that have a update status=0x0E. Do you have any example gg file for testing? If it possible could you please provide me example data with internal or external cell balancing function. If not, could you fix my data?
- For Balancing:
Reference for min cell deviation value: http://www.ti.com/lit/an/slua420a/slua420a.pdf .
Could you please check my values?
- Internal Balancing: For 4 serial configuration with internal cell balancing, cell filter resistors are 100 ohm that’s why min cell deviation value is 1350 s/mAh
- External Balancing: For 4 serial configuration with external cell balancing, cell filter resistors are 1k ohm and balancing resistors are 50ohm that’s why min cell deviation value is 130 s/mAh. I’m calculating as below:
R= 50 ohm + Rswithingmosfet = approximately 52 ohm
DF:MinCellDeviation = R × 3.6/(V × D) = 52 x 3,6/(3,6 x 0,4) = 130 s/mAh
