Other Parts Discussed in Thread: GPCCHEM, BQ27426,
Dear TI Team,
I used the gpcchem online tool to get the ChemID what matches best a six cells battery pack (Type: INR21700-40T). It looks like it worked with the ID 2162. The Error is under 3%.
But what is the second part of the report telling me? (After: Selection of best generic ID for ROM based devices like bq274xx)
Does that mean, that this gauge does not support the ChemID or should I just program the recommended ID 2162?
It would be great if you could help me with this question!
Best regards,
Anna
Report:
Chemistry ID selection tool, rev=2.5
Configuration used in present fit:
ProcessingType=2
NumCellSeries=6
ElapsedTimeColumn=0
VoltageColumn=1
TemperatureColumn=2
CurrentColumn=3
Best chemical ID : 2162 Best chemical ID max. deviation, % : 2.42
Summary of all IDs with max. DOD deviation below 3%
Chem ID max DOD error, % Max R deviation, ratio
2162 2.42 1.26
2161 2.69 0.43
2646 2.69 0.84
2141 2.9 0.29
Max. deviations for best ID is within recommended range. Chosen best chemical ID is suitable for programming the gauge.
Selection of best generic ID for ROM based devices like bq274xx
Device / Family #1
Generic Chem ID Device/ Voltage/ Chemistry max DOD error, %
3142 bq27421-G1D: 4.4V LiCoO2 21.2
354 bq27411-G1C: 4.35V LiCoO2 23.4
128 bq27421-G1A: 4.2V LiCoO2 24.43
312 bq27421-G1B: 4.3V LiCoO2 29.35
Best generic ID 3142
Warning: Generic ID Deviation is so high that it is most likely due to anomaly in the data. Please check that data files have recomended format, units and test schedule
Device / Family #2
Generic Chem ID Device/ Voltage/ Chemistry max DOD error, %
1210 bq27621: (ALT_CHEM1) 4.3V LiCoO2 21.94
1202 bq27621: (default) 4.2V LiCoO2 22.34
354 bq27621: (ALT_CHEM2) 4.35V LiCoO2 23.4
Best generic ID 1210
Warning: Generic ID Deviation is so high that it is most likely due to anomaly in the data. Please check that data files have recomended format, units and test schedule
Device / Family #3
Generic Chem ID Device/ Voltage/ Chemistry max DOD error, %
3142 bq27426: (ALT-CHEM2) 4.4V LiCoO2 21.2
1202 bq27426: (ALT_CHEM1) 4.2V LiCoO2 22.34
3230 bq27426: (default) 4.35V LiCoO2 25.21
Best generic ID 3142
Warning: Generic ID Deviation is so high that it is most likely due to anomaly in the data. Please check that data files have recomended format, units and test schedule
