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Battery Health check.

Discussion in 'Gen 3 Prius Technical Discussion' started by 1PPS, Oct 2, 2024.

  1. 1PPS

    1PPS New Member

    Joined:
    Sep 24, 2024
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    Location:
    Australia
    Vehicle:
    2009 Prius
    Model:
    i-Tech
    Hi What numbers would indicate a "healthy" gen 3 hybrid battery, using a Sollus Ultra scan tool? My mechanic got the figures in the photo attached ....Thank you so much for your interest in my question...Cheers Peter Sydney IMG_20241001_090956.jpg
     

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    #1 1PPS, Oct 2, 2024
  2. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
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    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    The state of charge (SOC) of the hybrid battery varies between 40 to 80% as you drive the car. That is what the Toyota engineers designed the control system of the car to do. The SOC of the hybrid battery does NOT tell you anything about the health of the battery.
     
    #2 Brian1954, Oct 2, 2024
  3. bisco

    bisco cookie crumbler

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    boston
    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    dr prius will do a health check and give you expected % of life left, but i wouldn't trust it. old batteries can easily slip out of operating parameters due to one cell failing.
     
    #3 bisco, Oct 2, 2024
    Brian1954 likes this.
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