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Two questions about HV battery pack

Discussion in 'Gen 3 Prius Technical Discussion' started by PRI6080, Jul 21, 2022.

  1. PRI6080

    PRI6080 Junior Member

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    Tried searching but could not find if someone has posted a writeup on removing the battery pack out of a 3rd gen (2010) Prius IV.

    Also, I've seen conflicting information about what side(drivers side or passenger side) is the number one block. Dr. Prius app is telling me block number 13 is bad and I want to make sure which one it is in the whole pack.

    Thank you.
     
    #1 PRI6080, Jul 21, 2022
  2. AzusaPrius

    AzusaPrius Senior Member

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    Passenger side.

    Have someone to help remove it to save your back.
     
    #2 AzusaPrius, Jul 21, 2022
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  3. PRI6080

    PRI6080 Junior Member

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    So if Dr. Prius indicates number 13 block is bad, that'd be one of the last few blocks on the driver's side?
     
    #3 PRI6080, Jul 21, 2022
  4. AzusaPrius

    AzusaPrius Senior Member

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    Yes
     
    #4 AzusaPrius, Jul 22, 2022
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  5. TMR-JWAP

    TMR-JWAP Senior Member

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    Regardless of battery model, block 1/module1 is always where the large orange main cable is connected to the negative terminal.
     
    #5 TMR-JWAP, Jul 22, 2022
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  6. ASRDogman

    ASRDogman Senior Member

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    Have you searched youtube? I found several videos of removing the hybrid battery.
    How are you going to balance the pack after replacing bad packs?

     
    #6 ASRDogman, Jul 22, 2022
  7. PRI6080

    PRI6080 Junior Member

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    There is only one bad block. Still working on /looking for how to balance whole pack.
     
    #7 PRI6080, Jul 22, 2022
  8. bisco

    bisco cookie crumbler

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    there are lots of threads here, but not one we can refer you to. you just have to start digging.
     
    #8 bisco, Jul 22, 2022
  9. PRI6080

    PRI6080 Junior Member

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    In this video, the guy says block number 1 is on the passenger side. You say it's on the side where the orange cable is like at the 50sec mark in this video, which is shown here in the driver's side.

    Is there another orange cable connection the passenger side I'm not seeing here?

     
    #9 PRI6080, Aug 26, 2022
  10. ChapmanF

    ChapmanF Senior Member

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    At each end of the pack, there is a module with a big orange cable attached to it. At one end, the cable is attached to the module's + terminal. At the other end, the other cable is attached to that module's − terminal.

    TMR was talking about the end where the cable attaches to the − terminal.
     
    #10 ChapmanF, Aug 26, 2022
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  11. ASRDogman

    ASRDogman Senior Member

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    Must be a Gen 2. Looks a lot different than my 2010....
    Just throw that stuff around, doesn't matter where it lands....
    Those buss bars looked bad. But it doesn't matter. Why clean them while you have it apart???
    Should have started the car before puttting it all back together.

    No need to balance the pack... the car will do it. Why did Prolong spend all the money and time
    in research to come up with their system???

    If those cells were back, shortly others will follow....


     
    #11 ASRDogman, Aug 26, 2022
  12. PRI6080

    PRI6080 Junior Member

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    Thank you for clarifying that. I'll probably be tackling this tomorrow, finally.
     
    #12 PRI6080, Aug 26, 2022
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