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Help>> to select right chemistry ID for my battery

Sam Lee
Prodigy 30 points

Hi

Would you help me to find the right chemistry ID? LOG file is attached. I have tried to import this file into Mathcad but there is no file input command in it.

Could you tell me how to import log data into mathcad ?

Thanks in advance,

Sam8371.bqtestiii.log

  • 0
    TI__Intellectual 2100 points

    The discharge cycle that you have attached is the bqEASY Chemistry Selection profile.  This is an OCV Relax profile (Measuring OCV and impedance at a few different points down the curve).  The MathCAD tool uses a relax-discharge-relax profile, which is different, so you can't use this profile for that analysis. 

    When you downloaded the MathCAD tool, it has an example dishcarge profile which can guide you.  It is similar to the discharge profile in step 5a, except with a C/10 load instead of C/5.  The PDF attached to the MathCAD tool has a good explanation.

    However, if you completed this cycle, bqEASY should have given you a chemID from this profile.  Did you see that value?

    Thanks,

    Charles

  • 0 in reply to Charles Herder
    Prodigy 30 points

    Now I get it.

    But I didn't see chem ID at the end of the process, Weird. I am using Window7, it is causing a lot of problem in Mathcad and bqeasy. I will try to use XP version and give it a try again.

    thanks for your prompt reponse, Charles

    Sam

     

  • 0 in reply to Sam Lee
    Prodigy 30 points

    Charles,

    I saw the chemistry ID after the chemistry cycle. and I updated the chemistry ID using bqeasy but I could not see the right ID under OCVa Table?

    What did go wrong? before learning cycle, Chem ID numbers should be same as what I found, ID 0112 but alwast 0100 whicg is default value.

    pls help

    Sam

  • 0 in reply to Sam Lee
    TI__Intellectual 2100 points

    Sam,

    OK, it appears that your ChemID is 112, which is a good step.  If your dataflash is reading a chemistry ID of 100, go to step 4 and choose "select chemistry manually".  Select chemistry 112 and update it into the gauge.  Sometimes if you aren't starting from a clean image, this process has some problems, so go back to data flash and make sure that it reads 112 before continuing.

    If it still does not read 112, reflash your gauge with a default DFI in step 1, and then use your current project to reprogram the configuration values in step 2.  Calibrate your gauge the same way you had before in step 3.  Now retry programming the chemistry by choosing chemID 112 manually.  This should work.

    Thanks,
    Charles