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Dead Battery?

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by tsatsawassa, Jun 24, 2017.

  1. tsatsawassa

    tsatsawassa New Member

    Joined:
    Jun 24, 2017
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    Location:
    12203
    Vehicle:
    2015 Prius c
    Model:
    N/A
    I had to leave my 2015 Prius C sitting in my garage for seven weeks without starting it. It has 25,000 miles on it. Wouldn't start when I tried to start it. Had it jumped and I drove for about 20 minutes before shutting off. It wouldn't start again so I jumped it again. Drove for another 20 minutes before shutting off. Still won't start.

    The dealership I bought it from new, two years ago, is never helpful. I want to be prepared when I tell them what's wrong, and what they say needs to be done to fix the problem.

    I purchased the five year extended warranty.

    Thanks.
     
    #1 tsatsawassa, Jun 24, 2017
  2. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,693
    39,237
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    The car is constantly imposing a slight load on the battery. If the car is used regularly, it'll be ok. But: two years, old, sitting idle for seven weeks, it's been drained.

    Jumpstarting and driving for 20 minutes does not restore a dead battery. Depending on how motivated you are:

    1. Purchase a smart charger, in the 3~4 amp range, one that's capable of assessing the battery state and running a charging session. Hooking up at the under-the-hood jump point is fine. It'll likely take around 12 hours to complete.

    2. Head for your dealership, they can try similar, or more likely: will sell you a new battery.

    If you're going to leave the car sitting for 7 weeks, a smart charger can be left on, indefinitely. This'll prevent mishaps like this. A good quality charger would be the CTEK 3300.
     
    #2 Mendel Leisk, Jun 24, 2017
    Christina M, tsatsawassa and roadrunner like this.
  3. Sean Nelson

    Sean Nelson Active Member

    Joined:
    Dec 30, 2014
    421
    182
    0
    Location:
    Vancouver, BC Canada
    Vehicle:
    2012 Prius c
    Just as another data point, I left my 2012 Prius C with its original battery sitting in my garage in moderate temperatures while I went on a 7-week vacation last fall. On my return the car started immediately despite the neglected four-year-old battery, and it continues to work perfectly.
     
    #3 Sean Nelson, Jun 24, 2017
    tsatsawassa and Mendel Leisk like this.
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