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Checking Auxillary Battery for 2014 Prius.

Discussion in 'Newbie Forum' started by frankenstein, May 6, 2017.

  1. frankenstein

    frankenstein Junior Member

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    Can anyone tell me the procedure for checking the 12V auxillary battery in 2014 Prius? Thanks.
     
    #1 frankenstein, May 6, 2017
  2. bisco

    bisco cookie crumbler

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    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    after the car has been off for a few hours, pop the hood, and put a volt meter on the jump point inside the fuse box.
    should read 12.4 or better. 12.0-12.3 is iffy, less than 12 is bad. you can try charging it, and see how it holds, before replacing.
    a new, fully charged 12 volt reads around 13 volts.
    my 5 year old battery reads 12.56 volts.
     
    #2 bisco, May 6, 2017
    Peter Baylie and RCO like this.
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