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Time to replace battery?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by wesayso, Jan 24, 2019.

  1. wesayso

    wesayso Member

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    Well, my Prius will be 8 years old in March. I still have the original 12 volt battery. Is it time to replace it? How many years is everyone typically getting?
     
  2. schja01

    schja01 One of very few in Chicagoland

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    8 years? I would have changed it 3 years ago.

    In short, yes.

    How cold does it get in your neck of the woods?
     
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  3. eliteconcept

    eliteconcept 700 mile club, top tank mpg 69.5

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    yes, replace it. better to give up another 6-8 months or a year of use than to be stranded with a dead battery.

    Mine is 4+ years and I was nervous going into this winter. Its def getting replaced in the spring.
     
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  4. Grit

    Grit Senior Member

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    Leave it, Mother Nature can always defer on accepting another battery that’s yet dead in her landfill.

    And then for bragging rights on PC also, that you can still crank the original 12v batt after 8 years :cool:
     
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  5. bat4255

    bat4255 2017 Prius v #2 and 2008 Gen II #2

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    I just did our '08 for the 1st time (10 yrs). I maybe should have done it 2 years ago, as occasionally (3 times) I need to jump start it. The car is a lot happier now.
     
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  6. bisco

    bisco cookie crumbler

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    mine is 7, still showing 12.6 volts
     
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  7. bat4255

    bat4255 2017 Prius v #2 and 2008 Gen II #2

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    Ours did too when I checked it, but it would randomly become dead.
     
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  8. bisco

    bisco cookie crumbler

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    that's odd, no capacity for the constant drain maybe
     
  9. schja01

    schja01 One of very few in Chicagoland

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    Maybe a Prius battery lasts longer because it doesn’t need to supply high cranking amps as those in conventional cars do?
     
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