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Hybrid Battery Survey-Gen2 Prius 2004-2009

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by wjtracy, Sep 18, 2013.

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How is your Gen2 Prius (2004-2009) Hybrid Battery Doing?

Poll closed Jan 18, 2014.

  1. Failed below 100,000 miles

    6 vote(s)
    4.8%

  2. Failed between 100,000 and 150,000 miles

    8 vote(s)
    6.3%

  3. Failed between 150,000 and 200,000 miles

    5 vote(s)
    4.0%

  4. Failed at over 200,000 miles

    1 vote(s)
    0.8%

  5. Has not failed below 100,000 miles

    42 vote(s)
    33.3%

  6. Has not failed between 100,000 and 150,000 miles

    37 vote(s)
    29.4%

  7. Has not failed between 150,000 and 200,000 miles

    19 vote(s)
    15.1%

  8. Has not failed at over 200,000 miles

    8 vote(s)
    6.3%
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  1. wjtracy

    wjtracy Senior Member

    Joined:
    Sep 19, 2006
    11,340
    3,596
    1
    Location:
    Northern VA (NoVA)
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Our 2006 Prius HV batt died at 14-years and about 195,000 miles.
    In the absence of Prius v from the US market, we went with 2020 RAV4 HV last year.

    I have always qualitatively felt Toyota must have improved HV batt reliability by around 2008/2009 model year. No proof, but there were so many Prii sold in those years, that we'd have an avalanche of batt failures, if the reliability was same as say 2006 MY.
     
    #141 wjtracy, Aug 2, 2021
  2. nancytheprius

    nancytheprius Active Member

    Joined:
    Oct 25, 2020
    356
    152
    0
    Location:
    iowa
    Vehicle:
    2006 Prius
    Model:
    II
    Hi I cleaned out my hv battery fan and started to monitor my temperatures. Is it normal for sensor 1 and 3 to read the same but then sensor 2 be 4-5 degrees fahrenheit hotter consistently? Also, how can I learn what are good temperatures and resistance values? IMG_1818.png
    091595B5-A377-446A-8C1B-744C071D5D41.jpg
     
    #142 nancytheprius, Aug 7, 2021
  3. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    3,671
    1,716
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    Yes, the temperature sensors are in different positions on top of and underneath the pack. Whether the battery fan is on or not can also change the "balance"of the temperature readings.

    Posted via the PriusChat mobile app.
     
    #143 mr_guy_mann, Aug 8, 2021
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