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Dead 2009 Prius 12 volt battery followup question

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by msmary, Mar 5, 2014.

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  1. JC91006

    JC91006 Senior Member

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    The mileage will reset itself if you disconnect the battery. How many miles did you drive to average 20s? I make take a little longer to get your average up.
     
    #21 JC91006, Mar 12, 2014
  2. msmary

    msmary New Member

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    Oh I didn't disconnect the battery. Just basing it on when it resets when fill the gas up.I
    've been less than 130 miles since refilled .Battery still shows 12.0v/ig on 11.5-7/lights on 11.1.
    I don't mind waiting and will try to take it on a road trip soon. just don't want to hurt the car somehow. It will cost $245 to get a new battery and I can afford it. Just wondering f I should do it now or just keep going as is.
     
    #22 msmary, Mar 12, 2014
  3. JC91006

    JC91006 Senior Member

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    I can't image the voltage drop would cause that big of a mpg difference. When you fill up, see how many gallons you can get in and then divide by your mileage. It'll probably surprise you that you aren't that far off 40 mpg
     
    #23 JC91006, Mar 12, 2014
    mtbiker53 likes this.
  4. mtbiker53

    mtbiker53 Junior Member

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    2012 Prius
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    Three
    I'm as confused as was from the first post,charging it every other day?Car starts and runs ok,but mileage in the 20's?new battery 245$ ?
    Good on you JC for trying to help
     
    #24 mtbiker53, Mar 14, 2014
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