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Gen 3 12V battery

Discussion in 'Gen 3 Prius Main Forum' started by Chong, Jul 11, 2020.

  1. Chong

    Chong Junior Member

    Joined:
    Jun 15, 2013
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    Vehicle:
    2010 Prius
    Model:
    II
    My 2010 Prius just hit 280K miles yesterday and I've never had the 12V battery replaced.
    Has anyone experience this as well?
     
  2. magnumrtawd

    magnumrtawd Member

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    Location:
    Toledo,Ohio
    Vehicle:
    2010 Prius
    Model:
    III
    I also have a 2010 with the original 12 volt batt. I have it tested a couple of times a year. It has always tested good. So, I'm not wasting money on a new one!
     
  3. sam spade 2

    sam spade 2 Senior Member

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    Vehicle:
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    A few have gone that long, but not many I think.

    It depends on how inconvenient it would be for you if it fails to start someday at a place that is not home.

    I think you are on borrowed time and I would replace it NOW if you intend to keep the car very much longer.
     
    Chong likes this.
  4. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
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    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    The 280K miles is likely what kept the battery in good health. Still, I would count my blessing and start shopping. Any automotive retailer selling battery will more'n likely have an electronic load tester, can check where it's at for health, CCA.

    Have you cleaned the EGR and intake manifold?
     
    Chong and SFO like this.
  5. Chong

    Chong Junior Member

    Joined:
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    Vehicle:
    2010 Prius
    Model:
    II
    No I haven't cleaned those two items.
     
    Mendel Leisk likes this.
  6. bisco

    bisco cookie crumbler

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    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    amazing, maybe proves a lot of driving is good for everything on a prius