Hi, I submitted the data from the charge/discharge cycle to get a new Chemistry ID as instructed in the SLVA725 instruction manual, but it appears that I am getting an error and a couple warnings from the data submitted.
Here is the resulting report:
Chemistry ID selection tool, rev=2.12
Configuration used in present fit:
ProcessingType=2
NumCellSeries=12
ElapsedTimeColumn=0
VoltageColumn=1
CurrentColumn=2
TemperatureColumn=3
Best chemical ID : 6100 Best chemical ID max. deviation, % : 100.99
Summary of all IDs with max. DOD deviation below 3%
Chem ID max DOD error, % Max R deviation, ratio
0 0 0
Accuracy Error: 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
0 0 0 0
Warning: Discharge rate is too high. High rate reduces ID detection accuracy 10 hr rate is recomeended. Total discharge time is less than 5 hrs t_hrs= 3.91838888888889 0
Warning: difference between initial and final DOD is less than 90% dDOD_%= 75.61494491364
The cell pack in question was charged and discharged on a MACCOR while the current, voltage, and temp was logged using the bqStudio via the BQ34Z100PWR-G1 BMU.
The Ni-MH cells were charged and discharged as per the manufacturer’s recommendations.
Please advise as to how I should proceed to get a chemistry ID for the cells that we would like to use in our solution.
The Ni-MH cells we are using are the FDK Twicell HR-43FAUP (datasheet here) in a 12S3P configuration. The pack was charged at 1.35A and discharged at 2.7A down to 10.8V.
Let me know if there is any other information that may be useful.
Thanks,
Dariusz
