BQ34Z100: Custom battery profile

Hello Kyle,

Did the tool report a match? Can you upload the results of GPCCHEM tool?

Hi Shirish,

It reported a best chemical ID but that the deviation was above recommended levels. Please see below:

Chemistry ID selection tool, rev=2.52        
        
Configuration used in present fit:        
ProcessingType = 2        
NumCellSeries = 3        
ElapsedTimeColumn = 0        
VoltageColumn = 5        
CurrentColumn = 6        
TemperatureColumn = 7        
        
Best chemical ID : 225    Best chemical ID max. deviation, % : 3.56    
        
        
        
Summary of all IDs with max. DOD deviation below 3%        
        
Chem ID    max DOD error, %    Max R deviation, ratio
0    0    0
        
Warning: Deviation is above recommended level. New chem ID needs to be released for this cell. Please contact your TI representative to send the cell to Dallas for characterization        
        
        
Selection of best generic ID for ROM based devices like bq274xx        
        
        
Device / Family #1        
Generic Chem ID    Device/ Voltage/ Chemistry    max DOD error, %
354    bq27411-G1C: 4.35V LiCoO2    16.69
3142    bq27421-G1D: 4.4V LiCoO2    20.05
128    bq27421-G1A: 4.2V LiCoO2    34.22
312    bq27421-G1B: 4.3V LiCoO2    36.26
Best generic ID 354        
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    7.73
354    bq27621:  (ALT_CHEM2) 4.35V LiCoO2    16.69
1202    bq27621: (default) 4.2V LiCoO2    19.99
Best generic ID 1210        
Warning: Deviation for best generic ID is above recommended level for this device / family. Consider using another device, flash based gauge or RAM programming of custom ID.        
        
        
Device / Family #3        
Generic Chem ID    Device/ Voltage/ Chemistry    max DOD error, %
3230    bq27426: (default) 4.35V LiCoO2    7.97
1202    bq27426: (ALT_CHEM1) 4.2V LiCoO2    19.99
3142    bq27426: (ALT-CHEM2) 4.4V LiCoO2    20.05
Best generic ID 3230        
Warning: Deviation for best generic ID is above recommended level for this device / family. Consider using another device, flash based gauge or RAM programming of custom ID.        
        
        

Hello Kyle,

The logs must be collected with a bare cell - no protector or external components. Can you verify that?