Charging a dead 12 volt battery

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by jstraw20, Sep 13, 2012.

  1. jstraw20

    jstraw20 Member

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    2007 Prius
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    After a long delay, here's the final update:

    It worked. After pulling the battery from the car it took the trickle charger about 48 hours to bring it back up to full charge. I put the battery back in the car yesterday. 1st attempt at starting gave me a ton of warning indicators, I turned the car off, waited a couple of seconds, and on the 2nd attempt it fired right up. The hybrid battery had only lost 1 bar of charge in almost 7 months. Left the car ready for a few hours and this time I've backed it into the garage so if the 12 volt dies again at least the jump terminals will be reachable.
     
  2. You could install a battery disconnect switch and/or run a couPle of extension wires from the plus and minus terminals so that next time you can disconnect Bat and charge w/o the hassle.
     
  3. edthefox5

    edthefox5 Senior Member

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    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
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    Two
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