Dreaded P0A80 Code - Car Running / Charging Good.

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by PriuSocal, Jan 25, 2026.

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  1. PriuSocal

    PriuSocal Member

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    I will be doing the load test again after the new busbars and nuts are installed as mentioned above, once I drive the car for a day or 2.

    Thanks for clarifying that as I was wondering why there was 3 different types for the same car and one even called “deluxe” kit which I believe is the one you have with the large square discharger. I saw a guy on youtube us a charger called ToolKitRC Ap200 to charge his batteries too. Anyhow, there is a local guy selling a Prolong but not the one with the square discharger, it only comes with the round charger and some wired and small black box. Hes asking $250. Is that a good deal or should I wait and try to find one with the discharger to have the all in one kit instead?
     
    #141 PriuSocal, Apr 20, 2026 at 3:44 PM
  2. ASRDogman

    ASRDogman Senior Member

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    That's a good price for charging....
    I'm not sure about the small box. I don't remember it. Maybe it's an older version???
    You'll have to check Prolongs page, perhaps ask them.
    Does it come with the wiring harness?? You certainly need that.

    You could leave the charger on for 4 or five hours after the charging has leveled off and is stable.
    That balances the pack. And let it sit for at least an hours after removing it.
    So it can cool off and all the blocks can settle/level off.

     
    #142 ASRDogman, Apr 20, 2026 at 4:01 PM
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  3. PriuSocal

    PriuSocal Member

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    Yes it comes with a wiring harness and the charger. So you say 250 is a good price? What about the discharge process?
     
    #143 PriuSocal, Apr 20, 2026 at 8:35 PM
  4. ASRDogman

    ASRDogman Senior Member

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    Yes, that's a good price.
    You'd have to check the Prolong page for the procedure of the bulb one.

    You charge first, it will cut off.
    Then discharge to the the higher voltage.
    They charge.
    They discharge to the middle voltage.
    Then charge
    Then discharge to the lowest voltage.
    Then the final charge.

    You should read their information.
    Prolong Value Reconditioning Package - Hybrid Automotive

    And here are the "guides". Product Guides - Hybrid Automotive
     
    #144 ASRDogman, Apr 20, 2026 at 8:57 PM
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  5. PriuSocal

    PriuSocal Member

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    Thank you I really appreciate all the insight, I will look into getting that then. Do you know if I get the dicharge module later, can that be added to the base kit? or does it only work on the deluxe kit like yours.
     
    #145 PriuSocal, Apr 21, 2026 at 3:19 PM
  6. PriuSocal

    PriuSocal Member

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    I installed the new busbars and checked for continuity from plug to each connector on the longer busbar plate and they all are getting good conductivity. It is now ready to install. One thing I did check before doing is about the terminal spray protectant that you use on the 12v batteries and a google search shoed that it is NOT recommended to use on the busbars or cells due to it being specifically 12v isolated cells and can also introduce moisture to the connectors so I will be skipping that and simply relying on the nickel plated busbars and nuts to prevent corrosion.

    I also noticed this battery had missing busbar plastic protectors (the ones that cover the whole orange holder) so I ordered that and should be in today. Will post pics and update once it is installed.

    IMG_3774.jpg
     

    Attached Files:

    #146 PriuSocal, Apr 21, 2026 at 3:26 PM
    Last edited: Apr 21, 2026 at 3:33 PM
  7. ASRDogman

    ASRDogman Senior Member

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    Be very careful with those tiny wires.. Won't take much for them them to get damaged.
    Do no over torque the nuts. Only use a 1/4 drive.

    The charger and discharger are to separate items. You can always keep looking for the
    discharger and purchase later.
     
    #147 ASRDogman, Apr 21, 2026 at 4:03 PM
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  8. PriuSocal

    PriuSocal Member

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    All has been put back together and initial startup was normal and drive was great, felt more responsive but it was only a drive around the neighborhood. Will be driving it today, monitor the battery and report.

    Nuts were torqued to 48 in-lbs per manual.
     
    #148 PriuSocal, Apr 21, 2026 at 5:32 PM
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