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Maintaining settings during 12 volt battery change

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by lenjack, Feb 13, 2014.

  1. lenjack

    lenjack Active Member

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    I know there are battery "thingies" that plug into the lighter, which supposedly preserve the settings, but since the lighter is not "hot" whrn the car is not running, I don't see this working. How to do?
     
    #1 lenjack, Feb 13, 2014
  2. xliderider

    xliderider Senior Member

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    #2 xliderider, Feb 13, 2014
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  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Hook a low amp trickle charger to the the battery cables. Or pos to cable and neg to exposed metal. Be VERY careful to get it right way 'round. Then disconnect the battery, you should be fine, memories retained.
     
    #3 Mendel Leisk, Feb 13, 2014
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  4. Mendel Leisk

    Mendel Leisk Senior Member

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    You could do it at the jumper point, under-hood, too: would work the same.
     
    #4 Mendel Leisk, Feb 13, 2014
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