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XGauges for hybrid battery blocks: blocks 6 and 13 problem

Discussion in 'Gen 3 Prius Technical Discussion' started by Mendel Leisk, May 27, 2018.

  1. Mendel Leisk

    Mendel Leisk Senior Member

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    I've added XGauges to my ScanGuage II, for hybrid battery blocks 1 through 14, following the attached spreadsheet. A screenshot:

    upload_2018-5-27_14-25-52.png

    Blocks 6 and 13, indicated as special, are giving very low values, somewhere between "6" and "10". All the other blocks I'm getting pretty uniform numbers, anywhere between "1643" and "1650". Sometimes the number jumps around a bit, say between 1645 and 1648, for example. According to the spreadsheet, "1648" represents 16.48 volts.

    But anyway, blocks 6 and 13 readings seem to have something wrong. Anyone try the ScanGauge method, any ideas. I believe @Raytheeagle has? Also, any comments on those values, and the degree of variation? Also, how useful/informative are they?

    Just an aside, with my knackered Scangauge entry was very awkward. There's supposed to be an underbar showing you which digit you're adjusting. It would occasionally vanish, making things interesting. It was immensely helpful to just get ONE in the can, and then save-as, over and over, since there were just minor variations between them all. By the end it was getting easier.
     

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    #1 Mendel Leisk, May 27, 2018
    Last edited: May 27, 2018
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  2. Raytheeagle

    Raytheeagle Senior Member

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    Im a Techstream user:(.

    I’m not seeing block voltages, but anything greater than 0.4 volts I believe sets a code.

    Here’s a screen shot from a battery rebuild @SFO is doing currently:):

    upload_2018-5-27_18-16-18.jpeg

    The old cell #9 was 6.36 which set the code;).

    After replacement, charging and discharge it looks a lot better:).

    Not sure who other scangauge users are, but I’m sure others will chime in(y).
     
    #2 Raytheeagle, May 27, 2018
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Here's my chicken scratches, from a low of 16.40 to max of 16.50, just dividing in half that'd be cells between 8.20 and 8.25. Seems pretty good, uniform. And those pesky V06 and V13, the XGauge just not working I think.

    IMG_8732.JPG

    (Where there's two numbers it was jumping back and forth, a few seconds on one, then the other.)
     
    #3 Mendel Leisk, May 27, 2018
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  4. Raytheeagle

    Raytheeagle Senior Member

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    From the above sounds of it, nothing to worry about ;).

    Here’s a Techstream view of our 2010 a couple of months back when our 2010 was around 173 k miles and prior to a 2 cycle reconditioning):

    6755D4FB-A51D-49B1-B64D-E115BEB9A3A9.jpeg 2580F32C-6DAF-4F21-B639-85181795BE10.jpeg

    The next are shots of @Pedal Logic ‘s 2010 with about 71 k miles:

    3DEC6E2B-C8EB-460D-9110-FF78C5E38936.jpeg

    Just for comparison (y).
     
    #4 Raytheeagle, May 27, 2018
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  5. Mendel Leisk

    Mendel Leisk Senior Member

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    There's also XGauges for resistance, again by block. I didn't give them much thought. Would resistance be more telling maybe? Maybe tomorrow's project, now that I'm a whiz at entering them. :rolleyes:
     
    #5 Mendel Leisk, May 27, 2018
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  6. Mendel Leisk

    Mendel Leisk Senior Member

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    Yeah I think I'll do the resistance by block XGauges, sooner than later. I see there no "specials", so this time hopefully get proper data from all blocks.

    upload_2018-5-27_18-44-0.png

    Addendum: Oh never mind, I got muddled looking at those screenshots. Resistance actually looks very regular, it's voltage of the blocks that varies, a bit. Anyway, looks like the voltage by block (the ones I can read) is fairly high, and quite uniform.

    Your's is in very good shape, and signif higher compared to @Pedal Logic; due to that conditioning, or just clean living, lol.
     
    #6 Mendel Leisk, May 27, 2018
    Last edited: May 27, 2018
  7. Raytheeagle

    Raytheeagle Senior Member

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    Resistance is another tell, but I’m not sure what those limits are:oops:.

    I know @jeff652 doesnt really use them, but others see great value in them:).

    More helpful if you are rebuilding a pack from loose cells more so than the same cells from the same origin in the same car IMO;).

    Good luck with your quest tomorrow (y).
     
    #7 Raytheeagle, May 27, 2018
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  8. Grit

    Grit Senior Member

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    I use Dr Prius app and it shows real time voltage charge & discharge of the HV battery in 14 pairs w/1 second interval updates. Any reading that goes from green to red, or yellow to red are things to check on. One of the best features of the app is difference of voltage measurement to the hundreds .01- voltage reading of lowest voltage block compared to the high voltage block. I've seen 0.20 voltage difference between packs but no red values yet. Also has resistance values below voltage on blocks, hope this app can help you see voltage difference of real time charge and discharge of individual packs.
     
    #8 Grit, May 27, 2018
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  9. Mendel Leisk

    Mendel Leisk Senior Member

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    With the ScanGuage I can only display 4 "gauges" at a time, for real time monitoring. I'm reluctant to do that though, probably just limit my observations to a static check, as I've already done. There was something flakey going on when I left the ScanGauge connected full time: the constant weight of the obd plug might have been triggering "Check Hybrid System".

    Thanks for the tip though, I'll look that up.
     
    #9 Mendel Leisk, May 27, 2018
    Last edited: May 28, 2018
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