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Bad Main Battery on 2007?

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by AceMulder, Jul 8, 2013.

  1. AceMulder

    AceMulder Junior Member

    Joined:
    Sep 22, 2007
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    Location:
    Orange County, California
    Vehicle:
    2007 Prius
    Model:
    V
    I have a 2007 Prius that randomly (once a month or so) appears to have a dead battery--jumping it gets is started. I took it in to Batteriesplus and they tested the 12 Volt battery and said it was fine. They thought it was the main battery that was an issue. Would a problem with the main battery have this issue? How do you test the main battery?
     
    #1 AceMulder, Jul 8, 2013
  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
    The Main battery would never be 'helped' by jump starting, it is 201 volts, not 12 volts.

    In the US, at least two batteries are correctly sized and as safe as Toyota's battery
    Optima DS46B24R Optima battery direct fit replacement for Prius 2004 + & Plug-in Prius with Instructions

    Exide AGM Car Battery (Group S46B24R)


    To test the 12 volt battery use these instructions after leaving it overnight. you should report back with 3 voltages but if any are under 12 volts it is time for a new one.
    Weird stuff happening? MPGs dropping? Test The Battery | PriusChat

    The good news is that the 12 volt battery is near $200, not near $1000 like the main battery and it is MUCH easier to lift.
     
    #2 JimboPalmer, Jul 8, 2013
  3. bisco

    bisco cookie crumbler

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    boston
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    Plug-in Base
    perhaps there is some type of short that didn't show up when they tested it.
     
    #3 bisco, Jul 8, 2013
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