Hi Team,
My customer is experiencing below issue and needs your help.
After uploading GPC data, the official website reply report is as follows:
Chemistry ID selection tool, rev=2.47
Configuration used in present fit:
ProcessingType=2
NumCellSeries=4
ElapsedTimeColumn=0
VoltageColumn=2
CurrentColumn=3
TemperatureColumn=1
Best chemical ID : 2487 Best chemical ID max. deviation, % : 1.08
Summary of all IDs with max. DOD deviation below 3%
Chem ID max DOD error, % Max R deviation, ratio
2487 1.08 0.54
1976 1.27 0.35
2407 1.29 0.91
245 1.37 0.52
1982 1.39 0.53
2286 1.39 0.27
231 1.44 0.62
221 1.46 0.74
218 1.46 0.69
2102 1.47 0.27
1301 1.48 1.15
1741 1.48 0.51
1323 1.53 0.28
1331 1.53 0.7
1340 1.54 1.12
2442 1.57 0.35
2405 1.57 0.8
261 1.58 0.55
1991 1.61 0.4
1954 1.64 0.45
227 1.64 0.47
2127 1.71 0.24
1325 1.73 0.36
253 1.76 0.39
297 1.77 1.16
2047 1.77 0.29
206 1.77 1.56
2053 1.78 0.75
234 1.79 0.8
239 1.8 0.32
252 1.84 1.11
2078 1.86 1.44
2151 1.87 0.24
1332 1.89 0.81
1352 1.89 1.21
3596 1.9 0.75
1314 1.9 0.43
2048 1.91 0.35
2188 1.95 0.45
2309 1.95 1.49
2135 1.96 0.46
212 1.97 1.97
2126 1.98 0.86
1996 2 1.48
295 2.03 0.59
1653 2.03 1.02
2051 2.04 1.13
201 2.06 0.33
2094 2.06 0.84
2091 2.07 1.69
230 2.11 1.83
1351 2.12 1.65
2148 2.14 0.42
2106 2.16 0.59
1253 2.19 0.41
269 2.22 0.45
257 2.23 0.54
1647 2.25 0.85
2302 2.27 0.45
242 2.27 0.39
2079 2.31 0.44
265 2.32 1.19
1267 2.38 0.78
2077 2.41 1.51
286 2.45 0.54
1975 2.49 0.85
225 2.58 0.34
275 2.59 1.89
2138 2.65 0.88
2131 2.66 0.26
2065 2.7 0.77
2082 2.76 0.4
1282 2.87 0.96
263 2.98 0.51
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 9.26
354 bq27411-G1C: 4.35V LiCoO2 11.92
128 bq27421-G1A: 4.2V LiCoO2 27.49
312 bq27421-G1B: 4.3V LiCoO2 36.78
Best generic ID 3142
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 #2
Generic Chem ID Device/ Voltage/ Chemistry max DOD error, %
354 bq27621: (ALT_CHEM2) 4.35V LiCoO2 11.92
1210 bq27621: (ALT_CHEM1) 4.3V LiCoO2 13.76
1202 bq27621: (default) 4.2V LiCoO2 19.06
Best generic ID 354
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, %
3142 bq27426: (ALT-CHEM2) 4.4V LiCoO2 9.26
3230 bq27426: (default) 4.35V LiCoO2 11.96
1202 bq27426: (ALT_CHEM1) 4.2V LiCoO2 19.06
Best generic ID 3142
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.
Customer would like to know how the chemical ID of this 2487 is found? He has updated the chemical ID to the latest version ------bqStudio Chemistry Updater (Rev. FF)
