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Dr Prius

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Ernie stires, Jul 13, 2022.

  1. Ernie stires

    Ernie stires Member

    Joined:
    Jun 28, 2022
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    Location:
    Colorado
    Vehicle:
    2005 Prius
    Model:
    Base
    New Prius owner bought a 2005 and am digging into various maintenance items. This is what Dr Prius says about the HV battery. It moves around, up and down. Looks like one block is consistently low. Ideas? Thanks I’m advance.
     

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    #1 Ernie stires, Jul 13, 2022
  2. Tombukt2

    Tombukt2 Senior Member

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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Well it's original it's like over 20 years old so you know getting that time past that time somebody might have put a rebuilt battery in a few years ago and it's heading to be that time again.
     
    #2 Tombukt2, Jul 13, 2022
    Ernie stires likes this.
  3. dolj

    dolj Senior Member

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    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
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    N/A
    You've got a 0.16 V voltage difference which is nothing at all to worry about. The scale of the graph just makes it look like something.

    Having said that, you actually need to test the battery while driving and need to do both a hard acceleration (0 - 70) and hard braking from speed to a complete stop (70 - 0) all the while recording all the data points to really know what the state of that battery is.
     
    #3 dolj, Jul 14, 2022
  4. Another

    Another Senior Member

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    Location:
    Naples, Florida
    Vehicle:
    2007 Prius
    Model:
    Touring
    If you buy the paid app version it will give you a bit more insight but as @dolj said, unless you’re experiencing problems, don’t worry, be happy.
     
    #4 Another, Jul 14, 2022
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