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How can I test the 12v and Hv 2005 batteries?

Discussion in 'Gen 2 Prius Technical Discussion' started by FarrahF, Jul 20, 2021.

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  1. FarrahF

    FarrahF Junior Member

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    Location:
    Stillwater, mn
    Vehicle:
    2010 Prius
    Model:
    Two
    Hello,
    I have had my 2010 Prius for about 7 yrs now. I added the dr Prius app and ordered the appropriate obd Bluetooth device as to check my battery health.
    My sister in Iowa has found a 2005, 1 owner, Prius that she is thinking of buying. It has 122,000 miles. I was hoping to do a diagnostic on the batteries (12v and Hv) when we go to look at it (it’s located at a small town dealer). How do I do this for this year? In dash? Obd device?
    Thank you!
    Farrah
     
    #1 FarrahF, Jul 20, 2021
  2. PriusCamper

    PriusCamper Senior Member

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    Vehicle:
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    Two
    Works the same way as yours... No additional skills required.
     
    #2 PriusCamper, Jul 20, 2021
    FarrahF likes this.
  3. ydpplqbd

    ydpplqbd Active Member

    Joined:
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    Location:
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    Vehicle:
    2006 Prius
    Model:
    Three
    Without test equipment, I do the following;
    1. Get Gen2 to operating temperature (less time required in the summer),
    2. Drive Gen2 on very flat highway at 60mph with all electric devices off (preferably during daylight so headlights are not required);
    3. Reset MFD cumulative mileage meter;
    4. Drive Gen2 at 60mph for at least 1 mile (2 or 3 miles would be better); and
    5. Record cumulative gas mileage as displayed on the MFD.

    If HV battery is in decent shape then the gas mileage should be greater than 50mpg. Best of luck.
     
    #3 ydpplqbd, Jul 20, 2021
    FarrahF likes this.
  4. FarrahF

    FarrahF Junior Member

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    Location:
    Stillwater, mn
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    2010 Prius
    Model:
    Two
    #4 FarrahF, Jul 21, 2021
  5. bisco

    bisco cookie crumbler

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    Location:
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    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    multi function display
     
    #5 bisco, Jul 21, 2021
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