Something happened to modules after reconditioned “Strange”

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by robinredd1, May 21, 2024.

  1. robinredd1

    robinredd1 Junior Member

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    Hi everyone ,
    I bought a pronglong charger off of eBay and the discharger too. I have a 2007 Prius and the charger was designed for this year Prius I’m not saying that to draw attention to not haveing the correct charger for the 2007 Prius (2004-2015 Prius non plug in. Anyway I have another 2012 Prius a Prius c . I have a few stacks of modules I really needed the charger for the prius c , but not very any showing up on eBay, so I got the one for the other prius So theirs the 20 modules in the prius c pack , so I went threw and selected 8 modules to make a 28 pack useing the 2007 hybrid battery pack I dismantled and to out the modules and put my 20 in it from the Prius c and added the remaining 8 from all the extras I have hooked it all together clean bus bars, all the wires up and added the prolong charger harness and begun the the reconditioning processes charging discharging follow all the directions per the prolong website instructions everything went smoothly their where 3 modules combination 1 complete block and one out of a block total 3 I replaced per results I got from the dr Prius app. Well somehow I make a mistake when grabbing a what I numbered on module prior to taking my extras from and grabbed a number 12 module from a labeled 12 from a different pack that was not to good of a module , it went threw the reconditioning Process . I soon found out when I was driving the Prius c the fan running to hybrid and dr Prius , so here we go I pulled the battery out again and was going to change out the bad module I still have the other 8 modules from the reconditioning that were extras but reconditioned no problem . Now here is where it gets real strange . I was testing and deciding the module I was going to use .and for some reason just out of curiosity I put the Multi meter, and she to check continuity on the Prius c pack that I have now disassemble all the hardware they are still clamped mind you and starting on block 10 module 20 I put the probes on one positive and one negative nothing and I moved on to module 19 “ continuity “ 18 no continuity 17 continuity every other on down the pack shows continuity. I thought now what could the car have done to the pack to achieve these results or what could have caused this to happen? Then I thought “mmmmmm” let me check those 8 modules that are still in the pack when I reconditioned I put them in the pack first and they never came out of the pack Evan while I was testing to see what one I wanted to use to swap the bad module out with I never changed their order because I was writing voltages down for them. So I put the probs on them and the same thing every other shows continuity so now I know it wasn’t something the Prius c did to the pack because those 8 never went Evan into my car. I put the probs on some of the other modules I have stacked nine of them show continuity. Could please some shine some light on this ? Has this happened to anybody , so I don’t know what the hec I’m going to do now I don’t know the condition of all the cells I have let alone the time to run threw a reconditioning possess did I do something ?oh my goodness I really need to get the Prius c running I live in illinois and I need to go to a funeral in Los Angeles soon any help will be so appreciated let god give the person who might know something in this area I inclination to check out the new posts thank you very much Robin D.
     
  2. mr_guy_mann

    mr_guy_mann Senior Member

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    Your post is one long mosh-up of sentences. It would be much easier to understand with some paragraphs and breaks.

    If I understand correctly, you used the "continuity" setting (resistance measurement) for checking how batteries are connected?

    The meter supplies a small voltage in resistance mode and measures the voltage drop across the probes. It uses that result to figure out the resistance (ohm's law). So if there's any voltage potential you get an incorrect reading

    In general, you need to just measure voltage across any two points in a battery pack.

    The more modules (cells) that are connected in series between the meter probes, the higher voltage you'll see. If there's an open circuit , you'll have 0V.

    Posted via the PriusChat mobile app.
     
  3. robinredd1

    robinredd1 Junior Member

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    Okay so it's okay for some individual modules not connected to anybody any of the other ones to show continuity I know that's not the test I should be doing but it was just something I did and I just kind of threw me back that a positive and a negative of the battery of one module terminal would show continuity like there's a short in it is it correct or or is this normal
     
  4. robinredd1

    robinredd1 Junior Member

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    I went through the stack of modules that I have some show continuity and some don't
     
  5. robinredd1

    robinredd1 Junior Member

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    Example when you want to buy a module off of eBay one module I've never seen anywhere on there I have ones that show continuity and ones that don't show continuities which one do you want to buy? this to me it just seems like it doesn't don't make no sense like there's something wrong that's the only reason it's got me all weirded out
     
  6. mr_guy_mann

    mr_guy_mann Senior Member

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    You cannot check "continuity" through a battery and have a meaningful result. Only a voltage measurement will make any sense.

    Posted via the PriusChat mobile app.
     
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  7. robinredd1

    robinredd1 Junior Member

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    I understand I should be reading only the voltage.
    This was just a unexpected test out of curiosity that I did and it just kind of threw me back at my readings
     
  8. robinredd1

    robinredd1 Junior Member

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    What kind of prompted the curiosity was a hybrid battery tech I saw using a insulation tester to test each side of the pack without the plugin,
    to know if there was a bad module in it and that tester narrowed it down to the actual module . I know that a multimeter and continuity is totally different machine but that's kind of where what prompted me to do the out of curiosity continuity test and I didn't know if this was a normal behavior that some modules to show continuity and some to show not?
     
  9. robinredd1

    robinredd1 Junior Member

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    I'm sorry I meant a full time meter and a insulation tester
     
  10. robinredd1

    robinredd1 Junior Member

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    Oh my God I can't believe my voice recognition a multimeter and a insulation tester
     
  11. robinredd1

    robinredd1 Junior Member

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    So based on the doing a continuity test has no meaningful results evan though it wasn't random modules showing continuity that it was every other in the whole 28 pack a pattern ?
    .
    it's safe to say then that I can go on and put my battery back into the car now
     
  12. robinredd1

    robinredd1 Junior Member

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    I put it in and now I got a poac2 code high voltage
     
  13. robinredd1

    robinredd1 Junior Member

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    just to up you are so right continuity does not matter in the modules .
    And the code P0AC2 high voltage turned out to be i forgot to plug in 1 plug.
    I did a life expectancy test dr prius I got 105.somthing% new condition
    from 65%.
     
  14. dolj

    dolj Senior Member

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    Just for others following at a later time the cookie-cutter description for P0AC2 is Hybrid Battery Pack Current Sensor Circuit High.
     
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  15. mr_guy_mann

    mr_guy_mann Senior Member

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    If your car now works correctly then congrats, - drive long and prosper.

    Posted via the PriusChat mobile app.