Part Number: BQ20Z95
Hello TI experts,
My customer designed battery pack with BQ20Z95 and sell it since 2014, and recently they got a complain from end customer.
end customer says that when they use battery pack with normal condition(charging and discharging with equipment), there was no problem.
but if they do not use battery and just store it about 2 months, when they attach the battery to equipment they see that the remaining capacity of battery is 25%.
(they sell and buy the battery that remains approximately 50%.)
and when they try to charge the battery with external charger, LED turns red to green immediately.
and they discharge and charge to full with this fault battery, the gauge turns to normal.
I think that gg file have some errors somewhere.
could you check this gg file for this fault situation? I know that this IC is old device, but i need your help.
and I have one more question, I could not find the known chemistry ID in bq Gas Gauge Evaluation software even though I updated ChemicalUpdater-848.
if you have known chemical ID for us, please let me know. the cell is ICP544382A,2300mAh, Samsung SDI, 3S1P.
please check these issues. Thanks.
Best regards,
Chase
[Header] bq EVSW Version = 0.9.64 DeviceName = bq20z95 v1.50 Time = 2020-02-06 ���� 7:17:35 [Voltage(1st Level Safety)] COV Threshold = 4250 COV Time = 1 COV Recovery = 4100 COV Delta = 0 COV Temp. Hys = 10.0 POV Threshold = 13000 POV Time = 0 POV Recovery = 12000 CUV Threshold = 3000 CUV Time = 2 CUV Recovery = 3200 PUV Threshold = 8250 PUV Time = 0 PUV Recovery = 9000 [Current(1st Level Safety)] OC (1st Tier) Chg = 2800 OC (1st Tier) Chg Time = 2 OC Chg Recovery = 100 OC (1st Tier) Dsg = 2800 OC (1st Tier) Dsg Time = 2 OC Dsg Recovery = 200 OC (2nd Tier) Chg = 3100 OC (2nd Tier) Chg Time = 2 OC (2nd Tier) Dsg = 2950 OC (2nd Tier) Dsg Time = 2 Current Recovery Time = 32 AFE OC Dsg = 00 AFE OC Dsg Time = 0A AFE OC Dsg Recovery = 10 AFE SC Chg Cfg = F3 AFE SC Dsg Cfg = F3 AFE SC Recovery = 5 [Temperature(1st Level Safety)] Over Temp Chg = 60.0 OT Chg Time = 1 OT Chg Recovery = 55.0 Over Temp Dsg = 70.0 OT Dsg Time = 1 OT Dsg Recovery = 65.0 [Host Comm(1st Level Safety)] Host Watchdog Timeout = 0 [Voltage(2nd Level Safety)] SOV Threshold = 13050 SOV Time = 0 Cell Imbalance Current = 5 Cell Imbalance Fail Voltage = 500 Cell Imbalance Time = 5 Battery Rest Time = 1800 Min CIM-check voltage = 3000 PFIN Detect Time = 1 [Current(2nd Level Safety)] SOC Chg = 4200 SOC Chg Time = 0 SOC Dsg = 4200 SOC Dsg Time = 0 [Temperature(2nd Level Safety)] SOT Chg = 80.0 SOT Chg Time = 0 SOT Dsg = 80.0 SOT Dsg Time = 0 Open Thermistor = -33.3 Open Time = 0 [FET Verification(2nd Level Safety)] FET Fail Limit = 100 FET Fail Time = 20 [AFE Verification(2nd Level Safety)] AFE Check Time = 10 AFE Fail Limit = 100 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 = 5 [Charge Inhibit Cfg(Charge Control)] Chg Inhibit Temp Low = -20.0 Chg Inhibit Temp High = 55.0 Temp Hys = 1.0 [Pre-Charge Cfg(Charge Control)] Pre-chg Current = 200 Pre-chg Temp = 0.0 Pre-chg Voltage = 2750 Recovery Voltage = 2750 [Fast Charge Cfg(Charge Control)] Fast Charge Current = 1400 Charging Voltage = 12600 Delta Temp = 0.0 Suspend Low Temp = -20.0 Suspend High Temp = 60.0 [Pulse Charge Cfg(Charge Control)] Turn ON Voltage = 5000 Turn OFF Voltage = 5000 Max ON Pulse Time = 60.00 Min OFF Pulse Time = 0.00 Max OFF Voltage = 5000 [Termination Cfg.(Charge Control)] Maintenance Current = 0 Taper Current = 170 Taper Voltage = 300 Current Taper Window = 60 TCA Set % = 100 TCA Clear % = 94 FC Set % = 100 FC Clear % = 94 [Cell Balancing Cfg(Charge Control)] Min Cell Deviation = 6250 [Charging Faults(Charge Control)] Over Charging Voltage = 500 Over Charging Volt Time = 0 Over Charging Current = 500 Over Charging Curr Time = 0 Over Charging Curr Recov = 100 Depleted Voltage = 6000 Depleted Voltage Time = 0 Depleted Recovery = 6500 Over Charge Capacity = 400 Over Charge Recovery = 2 FC-MTO = 36000 PC-MTO = 10800 Charge Fault Cfg = 30 [Data(SBS Configuration)] Rem Cap Alarm = 280 Rem Energy Alarm = 3080 Rem Time Alarm = 10 Init Battery Mode = 0081 Design Voltage = 11550 Spec Info = 0031 Manuf Date = 25-Mar-2015 Ser. Num. = 055A Cycle Count = 0 CC Threshold = 5310 CC % = 90 CF MaxError Limit = 100 Design Capacity = 2800 Design Energy = 32340 Manuf Name = 3S-1P Device Name = EGENS Device Chemistry = LION [Configuration(SBS Configuration)] TDA Set % = 0 TDA Clear % = 10 FD Set % = 0 FD Clear % = 20 TDA Set Volt Threshold = 9000 TDA Set Volt Time = 0 TDA Clear Volt = 10000 FD Set Volt Threshold = 9000 FD Volt Time = 0 FD Clear Volt = 10000 [Manufacturer Data(System Data)] Pack Lot Code = 0000 PCB Lot Code = 0000 Firmware Version = 0151 Hardware Revision = 0001 Cell Revision = 0001 [Manufacturer Info(System Data)] Manuf. Info = 123456789ABCDEF [Lifetime Data(System Data)] Lifetime Max Temp = 30.0 Lifetime Min Temp = 5.8 Lifetime Max Cell Voltage = 4253 Lifetime Min Cell Voltage = 2750 Lifetime Max Pack Voltage = 12749 Lifetime Min Pack Voltage = 8250 Lifetime Max Chg Current = 22562 Lifetime Max Dsg Current = -2043 Lifetime Max Chg Power = 225580 Lifetime Max Dsg Power = -22300 Life Max AvgDsg Cur = -2006 Life Max AvgDsg Pow = -2009 Lifetime Avg Temp = 12.3 [Lifetime Temp Samples(System Data)] LT Temp Samples = 36524 [Registers(Configuration)] Operation Cfg A = 0229 Operation Cfg B = 6CF8 Operation Cfg C = 0005 Permanent Fail Cfg = 5FED Non-Removable Cfg = 0000 [LED Cfg(LED Support)] LED Flash Rate = 2.000 LED Blink Rate = 1.000 LED Delay = 48.8 LED Hold Time = 4 CHG Flash Alarm = 10 CHG Thresh 1 = 0 CHG Thresh 2 = 26 CHG Thresh 3 = 51 CHG Thresh 4 = 76 CHG Thresh 5 = 100 DSG Flash Alarm = 10 DSG Thresh 1 = 0 DSG Thresh 2 = 26 DSG Thresh 3 = 51 DSG Thresh 4 = 76 DSG Thresh 5 = 100 Sink Current = 3 [Power(Power)] Flash Update OK Voltage = 7800 Shutdown Voltage = 7800 Shutdown Time = 20 Cell Shutdown Voltage = 2850 Cell Shutdown Time = 20 Charger Present = 12600 Sleep Current = 10 Bus Low Time = 30 Cal Inhibit Temp Low = -20.0 Cal Inhibit Temp High = 60.0 Sleep Voltage Time = 60 Sleep Current Time = 20 Wake Current Reg = 02 [IT Cfg(Gas Gauging)] Load Select = 1 Load Mode = 1 Term Voltage = 8250 User Rate-mA = 0 User Rate-mW = 0 Reserve Cap-mAh = 0 Reserve Cap-mWh = 0 [Current Thresholds(Gas Gauging)] Dsg Current Threshold = 100 Chg Current Threshold = 100 Quit Current = 50 Dsg Relax Time = 1 Chg Relax Time = 60 [State(Gas Gauging)] Qmax Cell 0 = 2800 Qmax Cell 1 = 2800 Qmax Cell 2 = 2800 Qmax Cell 3 = 2800 Qmax Pack = 2800 Update Status = 06 Avg I Last Run = -2006 Avg P Last Run = -2009 Delta Voltage = 13 [R_a0(Ra Table)] Cell0 R_a flag = 0055 Cell0 R_a 0 = 220 Cell0 R_a 1 = 216 Cell0 R_a 2 = 245 Cell0 R_a 3 = 247 Cell0 R_a 4 = 286 Cell0 R_a 5 = 297 Cell0 R_a 6 = 357 Cell0 R_a 7 = 458 Cell0 R_a 8 = 539 Cell0 R_a 9 = 646 Cell0 R_a 10 = 917 Cell0 R_a 11 = 3106 Cell0 R_a 12 = 6409 Cell0 R_a 13 = 9616 Cell0 R_a 14 = 25384 [R_a1(Ra Table)] Cell1 R_a flag = 0055 Cell1 R_a 0 = 213 Cell1 R_a 1 = 209 Cell1 R_a 2 = 238 Cell1 R_a 3 = 242 Cell1 R_a 4 = 282 Cell1 R_a 5 = 293 Cell1 R_a 6 = 351 Cell1 R_a 7 = 450 Cell1 R_a 8 = 528 Cell1 R_a 9 = 631 Cell1 R_a 10 = 881 Cell1 R_a 11 = 2884 Cell1 R_a 12 = 5949 Cell1 R_a 13 = 8924 Cell1 R_a 14 = 23559 [R_a2(Ra Table)] Cell2 R_a flag = 0055 Cell2 R_a 0 = 221 Cell2 R_a 1 = 217 Cell2 R_a 2 = 247 Cell2 R_a 3 = 246 Cell2 R_a 4 = 290 Cell2 R_a 5 = 303 Cell2 R_a 6 = 366 Cell2 R_a 7 = 475 Cell2 R_a 8 = 559 Cell2 R_a 9 = 649 Cell2 R_a 10 = 914 Cell2 R_a 11 = 3013 Cell2 R_a 12 = 6212 Cell2 R_a 13 = 9315 Cell2 R_a 14 = 24603 [R_a3(Ra Table)] Cell3 R_a flag = FF55 Cell3 R_a 0 = 298 Cell3 R_a 1 = 292 Cell3 R_a 2 = 306 Cell3 R_a 3 = 314 Cell3 R_a 4 = 283 Cell3 R_a 5 = 301 Cell3 R_a 6 = 379 Cell3 R_a 7 = 481 Cell3 R_a 8 = 576 Cell3 R_a 9 = 722 Cell3 R_a 10 = 1026 Cell3 R_a 11 = 2014 Cell3 R_a 12 = 4153 Cell3 R_a 13 = 6230 Cell3 R_a 14 = 16451 [R_a0x(Ra Table)] xCell0 R_a flag = 0000 xCell0 R_a 0 = 220 xCell0 R_a 1 = 216 xCell0 R_a 2 = 245 xCell0 R_a 3 = 247 xCell0 R_a 4 = 286 xCell0 R_a 5 = 297 xCell0 R_a 6 = 357 xCell0 R_a 7 = 458 xCell0 R_a 8 = 539 xCell0 R_a 9 = 611 xCell0 R_a 10 = 867 xCell0 R_a 11 = 2938 xCell0 R_a 12 = 6062 xCell0 R_a 13 = 9095 xCell0 R_a 14 = 24009 [R_a1x(Ra Table)] xCell1 R_a flag = 0000 xCell1 R_a 0 = 213 xCell1 R_a 1 = 209 xCell1 R_a 2 = 238 xCell1 R_a 3 = 242 xCell1 R_a 4 = 282 xCell1 R_a 5 = 293 xCell1 R_a 6 = 351 xCell1 R_a 7 = 450 xCell1 R_a 8 = 528 xCell1 R_a 9 = 598 xCell1 R_a 10 = 835 xCell1 R_a 11 = 2733 xCell1 R_a 12 = 5638 xCell1 R_a 13 = 8457 xCell1 R_a 14 = 22327 [R_a2x(Ra Table)] xCell2 R_a flag = 0000 xCell2 R_a 0 = 221 xCell2 R_a 1 = 217 xCell2 R_a 2 = 247 xCell2 R_a 3 = 246 xCell2 R_a 4 = 290 xCell2 R_a 5 = 303 xCell2 R_a 6 = 366 xCell2 R_a 7 = 475 xCell2 R_a 8 = 559 xCell2 R_a 9 = 635 xCell2 R_a 10 = 894 xCell2 R_a 11 = 2948 xCell2 R_a 12 = 6078 xCell2 R_a 13 = 9114 xCell2 R_a 14 = 24072 [R_a3x(Ra Table)] xCell3 R_a flag = FFFF xCell3 R_a 0 = 298 xCell3 R_a 1 = 292 xCell3 R_a 2 = 306 xCell3 R_a 3 = 314 xCell3 R_a 4 = 283 xCell3 R_a 5 = 301 xCell3 R_a 6 = 379 xCell3 R_a 7 = 481 xCell3 R_a 8 = 576 xCell3 R_a 9 = 722 xCell3 R_a 10 = 1026 xCell3 R_a 11 = 2014 xCell3 R_a 12 = 4153 xCell3 R_a 13 = 6230 xCell3 R_a 14 = 16451 [Device Status Data(PF Status)] PF Flags 1 = 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 = 0000 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 = 5.6 CC Delta = 5.6 Ref Voltage = 1221.50 AFE Pack Gain = 720.49 CC Offset = -0.297 Board Offset = -41.5 Int Temp Offset = 7.4 Ext1 Temp Offset = -6.5 Ext2 Temp Offset = 0.0 [Config(Calibration)] CC Current = 3000 Voltage Signal = 12600 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 = 4 CC Deadband = 10.0
