What is normal 12V battery reading....

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mcupery, May 17, 2011.

  1. mcupery

    mcupery New Member

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    ...after the car has been sitting overnight? I just tested mine using the on-board diagnostics and it read 9.0V. After I started the engine, it jumped up to 14.

    Should I replace the battery?

    Thanks,
    Marcia
     
    #1 mcupery, May 17, 2011
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Yes. It's amazing your car will even start.
     
    #2 Patrick Wong, May 17, 2011
    1 person likes this.
  3. mcupery

    mcupery New Member

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    Thank you so much for the quick reply. Much appreciated!
     
    #3 mcupery, May 17, 2011
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