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12v battery

Discussion in 'Gen 3 Prius Technical Discussion' started by Virg, Jul 24, 2017.

  1. Virg

    Virg Junior Member

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    Will a 12v standard Duracell "51" battery work just as well as the AGM type "51"? The standard battery is half the price.
     
    #1 Virg, Jul 24, 2017
  2. bisco

    bisco cookie crumbler

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    yes, if it's the drop in replacement from batteries plus bulbs.

    make sure it has the same dimensions, correct post size on the correct side of the battery, and the vent tube connection.
     
    #2 bisco, Jul 24, 2017
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    How much are your passengers worth?

    The external venting prevents explosive hydrogen gas from building up in the passenger compartment. AGM minimizes sulpheric acid in case of rupture.
     
    #3 JimboPalmer, Jul 24, 2017
  4. NavyLCDR

    NavyLCDR Active Member

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    Do it right. Order the 51-440BAGM Bosch Battery from PepBoys online for $133, go down to the store and pick it up same day. Or even have them install it for free - but make sure they connect the vent tube.
     
    #4 NavyLCDR, Jul 24, 2017
    runnyeggs likes this.
  5. Virg

    Virg Junior Member

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    Thanks to all for the quick answers. I realize the importance of the vent feature and thanks to Navy for the PepBoys source. That's half the price that Batteries and Bulbs quoted.
     
    #5 Virg, Jul 24, 2017
  6. runnyeggs

    runnyeggs Junior Member

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    That's what goes into my Bimmer. Either BMW or Bosch battery to save a little. For Toyota, I'd go for Toyota or Bosch.
     
    #6 runnyeggs, Aug 1, 2017
  7. CivicSky

    CivicSky Member

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    I guess it's time for me to change a new battery too because my interior lights dimmed the moment I turned off the car. I have a bad feeling about that.
     
    #7 CivicSky, Aug 1, 2017
  8. ChapmanF

    ChapmanF Senior Member

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    They'll always dim a little. When you turn the car off, the system voltage drops from about 13.8 down to the battery's own voltage, which is only about 12.7 at best. That's about an 8% difference, but light output goes by volts squared, so they'll dim by about 16%, under perfectly normal circumstances.

    -Chap
     
    #8 ChapmanF, Aug 1, 2017
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