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Help me understand my Hybrid Assistant battery health report

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by MB31, Aug 11, 2024.

  1. MB31

    MB31 Junior Member

    Joined:
    Feb 26, 2017
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    Location:
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    2005 Prius
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    II
    Today I ran a battery health report using the Hybrid Assistant app for Android. I followed the instructions but find it difficult to draw any conclusions from the report.

    The report mentions that "high delta values suggest a weary battery" but what is high?

    See my screenshots of the report attached. Who can tell me the status of my battery? Is it ok?





     
    #1 MB31, Aug 11, 2024
  2. TMR-JWAP

    TMR-JWAP Senior Member

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    Although it's been a while since I've performed a battery check with hybrid assistant, there's nothing about your graphs that jump out to me as a problem. During the discharge, all 14 blocks appear to stay relatively close to one another. Typically, a weak module will cause one block voltage to droop significantly lower than the others. Your spread looks pretty tight. Your battery may respond well to something like a Prolong treatment, but at first glance, I would have no immediate worries about your battery.

    See post 5 in this thread for a battery I tested that had a weak module.

    Just Another HV Battery Thread and Experiments | PriusChat
     
    #2 TMR-JWAP, Aug 11, 2024
    MB31 likes this.
  3. MB31

    MB31 Junior Member

    Joined:
    Feb 26, 2017
    62
    11
    4
    Location:
    Netherlands
    Vehicle:
    2005 Prius
    Model:
    II
    Thank you @TMR-JWAP that helps a lot. Also I now see the clear difference with the graph that you linked with the weak module.
     
    #3 MB31, Aug 12, 2024
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