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Preemptive 12V Battery Replacement

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Oldwolf, Nov 30, 2021.

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  1. Oldwolf

    Oldwolf Prius Enthusiast

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    My 2016 V has the original 12V battery and continues to run trouble free. The odometer just rolled over to 40,000 miles last weekend on a trip to DC. Since this is nearly the eighth year of operation for the battery, it may be wise to be preemptive and replace it before winter sets in. I see that Autozone has an AGM direct replacement. Anyone else here used the Autozone AGM battery in their Prius? Any problems?


    Duralast Platinum AGM Battery 46B24R-AGM Group Size 46B24R 410 CCA
     
    #1 Oldwolf, Nov 30, 2021
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  2. bisco

    bisco cookie crumbler

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    i have not used it, but have read a few good success stories from others. i really don't recall any issues with any after market batteries except what seemed to be a bad batch of optima's
     
    #2 bisco, Nov 30, 2021
  3. Oldwolf

    Oldwolf Prius Enthusiast

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    Thanks. I se that Autozone has a 15% off coupon which puts the battery around $179 before taxes.
     
    #3 Oldwolf, Nov 30, 2021
  4. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Autozone (and other automotive retailers) often have electronic load testers, will test your current battery condition, for free.
     
    #4 Mendel Leisk, Nov 30, 2021
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  5. Oldwolf

    Oldwolf Prius Enthusiast

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    Yes, I thought I would have them load test my battery. But don't you think after nearly eight years of service it should be replaced?
     
    #5 Oldwolf, Nov 30, 2021
  6. Colorado Boo

    Colorado Boo Active Member

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    I'm in a similar position with my wife's 2017 Prius that has the original battery. (Only just under 25,000 miles on the car). I have a pretty cool battery tester I'm using to keep an eye on it....just tested last month and it's saying good and at 100%. Let me look to see what the model/brand of tester I have.....it's a TopDon BT100 and Amazon has them for less than $60. I keep track of all my car batteries to know when one is nearing the end of life. (My Tundra's is at 75% and it was bought in 2018 but the Tundra sits outside in our weather (-20 to 100) so makes sense. Our Priis live in the garage.
     
    #6 Colorado Boo, Nov 30, 2021
  7. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Probably.
     
    #7 Mendel Leisk, Nov 30, 2021
  8. bisco

    bisco cookie crumbler

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    I’m a wait for it to die Kinda guy, but last time it cost me a call to triple a, and an hour of time.
    That was a 7 year old battery
     
    #8 bisco, Nov 30, 2021
  9. sam spade 2

    sam spade 2 Senior Member

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    Yes.
    IF it really was 8 years old.
    I've done the math several times and it only comes out to 6.
     
    #9 sam spade 2, Nov 30, 2021
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  10. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    8 years doesn't sound preemptive to me. 8 years is more like "got my money's worth, then risked getting stranded for a couple years, and got away with it too muahahaha!"

    Maybe your evil laugh just sounds different? Yes, it's absolutely time.
     
    #10 Leadfoot J. McCoalroller, Nov 30, 2021
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  11. ChapmanF

    ChapmanF Senior Member

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    Mine needed replacement last winter, the ten-year mark. But it had suffered a certain amount of COVID disuse abuse.

    I keep a small jump pack around, so I can direct my worrywart energies at other things.
     
    #11 ChapmanF, Nov 30, 2021
  12. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Yes. I put a new battery in ours in September of 2015, and running the numbers seems like just over 6 years. Op’s got a 2017, not sure what the earliest purchase date would be for those.
     
    #12 Mendel Leisk, Nov 30, 2021
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  13. bisco

    bisco cookie crumbler

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    2016?
     
    #13 bisco, Nov 30, 2021
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  14. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Ah whoops. :unsure:
     
    #14 Mendel Leisk, Nov 30, 2021
  15. Oldwolf

    Oldwolf Prius Enthusiast

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    Lol, you are correct. My V was built 9/2015 but is a 2016 model. That makes the battery about 6.25 years old.

    SM-G960U ?
     
    #15 Oldwolf, Dec 1, 2021
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  16. Oldwolf

    Oldwolf Prius Enthusiast

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    We are going to be shuttling grandkids around this Winter and even though the battery is a bit over 6 years old it has me concerned. Some of it will be overnight trips to the mountains.

    SM-G960U ?
     
    #16 Oldwolf, Dec 1, 2021
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  17. bisco

    bisco cookie crumbler

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    yep, good reasons to replace it :)
     
    #17 bisco, Dec 1, 2021
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  18. sam spade 2

    sam spade 2 Senior Member

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    Piece of mind is priceless.
    Do what ever alleviates your concern.
    As in, just get a new battery so you can stop worrying about THAT.
     
    #18 sam spade 2, Dec 1, 2021
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  19. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    With vehicles like ambulances, various "emergency" vehicles, I've heard they just slam in a fresh battery every two years or so. Depends on your priorities.
     
    #19 Mendel Leisk, Dec 1, 2021
  20. mr_guy_mann

    mr_guy_mann Senior Member

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    For most of the municipal and commercial stuff I work on, I just replace the 12V at 4 years- reliability is a bigger concern than saving a few dollars.

    Posted via the PriusChat mobile app.
     
    #20 mr_guy_mann, Dec 2, 2021
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