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Yet Another 12v Battery Thread

Discussion in 'Gen 3 Prius Technical Discussion' started by cnc97, Nov 26, 2020.

  1. cnc97

    cnc97 Senior Member

    Joined:
    Mar 13, 2018
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    Location:
    Evansville, IN
    Vehicle:
    2010 Prius
    Model:
    Three
    So Wednesday I decided that I would change the 12v battery. The “issue” I noticed was that the B+ voltage shown on my scanner app was 14.46 in ready and 11.62 ignition on mode after the brake pump stopped. However, a commensurate load test of the battery at the parts store showed 12.37 volt 74% charge. Now that the replacement is in, the voltage is 13.95 in ready and 12.4 ignition on after brake pump stops. I likely had some time left on my 12v, but given that I changed the battery in my wife’s car a month ago(I started it at 7am to move it, wouldn’t start at 10am when she wanted to leave), after it died with no warning, I figured I’d just go ahead and get it done.
     

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    #1 cnc97, Nov 26, 2020
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
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    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    You mention two Prius, so I am not sure if the 2010 is the one you changed the battery on, but ten years is a very long time for a 12 volt battery to last. I preemptively changed mine after 7 years..

    (I last visited Evansville in 2002, my wife was remodeling a Greyhound bus terminal in MS, and the only other terminal that used the same blueprints was in Evansville. Greyhound Bus Terminal, Clarksdale – Preservation in Mississippi )
     
    #2 JimboPalmer, Nov 26, 2020
  3. cnc97

    cnc97 Senior Member

    Joined:
    Mar 13, 2018
    1,418
    1,525
    38
    Location:
    Evansville, IN
    Vehicle:
    2010 Prius
    Model:
    Three

    The battery in mine was a 2015 manufactured Super Start put in by the previous owner in/near Orlando, judging by the parts store will call tag.


    The Greyhound terminal still exists, now known as Bru Burger Bar.
     
    #3 cnc97, Nov 26, 2020
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