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360 and 458 batteries dead

Discussion in '360/430' started by newwurldmn, Jun 1, 2025 at 2:43 PM.

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  1. newwurldmn

    newwurldmn Karting

    Jul 10, 2019
    123
    Springfield, MA
    Full Name:
    J
    #1 newwurldmn, Jun 1, 2025 at 2:43 PM
    Ugh. The batteries in both my 360 and 458 aren’t responding to the trickle charger. I don’t believe they have gone bad, though they both are 4 years old. Can I put jumper cables on them and connect to a car with a good battery (my corvette) and let the batteries charge that way?
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,734
    Central NJ
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    Dominick
    #2 flash32, Jun 1, 2025 at 3:10 PM
    Disconnect from car and use a regular battery charger 10.amps or more and see if you can revive them

    If not get at least for the 369 Duracell AGM at Sam's or batteries plus ..200 ish
     
  3. newwurldmn

    newwurldmn Karting

    Jul 10, 2019
    123
    Springfield, MA
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    J
    #3 newwurldmn, Jun 2, 2025 at 8:36 AM
    disconnecting these from the car is a royal pain in the ass. i'm trying to avoid that. knowing my mechanical skills, i will have a battery half disconnected and stuck.
     
  4. CoreyNJ

    CoreyNJ Formula 3
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    Apr 17, 2006
    2,398
    New Jersey Shore
    #4 CoreyNJ, Jun 2, 2025 at 9:31 AM
    4-year-old batteries, I wouldn't bother trying to revive these cars. They eat batteries if not on a tender. Since you have to remove them both anyway to charge, I'd just replace the batteries to save the step of trying to revive them. If the batteries were 2 years old, I would try to charge them outside the car.
     
    Rifledriver likes this.
  5. newwurldmn

    newwurldmn Karting

    Jul 10, 2019
    123
    Springfield, MA
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    J
    #5 newwurldmn, Jun 2, 2025 at 9:37 AM
    they were on tenders all winter. and they both died. where as my other (non-F) cars were also on tenders and were fine.
     
  6. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,734
    Central NJ
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    Dominick
    #6 flash32, Jun 2, 2025 at 10:11 AM
    I'm not saying remove I'm saying just disconnect from the car..

    Disconnect the terminals on top of the battery push to the side cover cover them and then charge in place
     
  7. GogglesPisano

    GogglesPisano F1 Rookie
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    Sep 13, 2022
    3,102
    East Bay, California
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    Joe
    #7 GogglesPisano, Jun 2, 2025 at 10:17 AM
    What type of tender/charger are you using?

    Like what was mentioned, I wouldn't add any additional connections or use a something stronger than a trickle charger with the battery connected to the vehicle. If it sat dead for a while though, I'd just cut your losses and get a new one.
     
  8. USAF - 1

    USAF - 1 Karting
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    Mar 27, 2021
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    San Jose CA
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    Todd
    #8 USAF - 1, Jun 2, 2025 at 9:13 PM
    Check the batteries with a reliable tester once charge and then get a new tender with desulfator. I use the batteryminder with desulfator on all 4 of my f-cars and all my other stored cars. My batteries last about 8 years, but note that when they get that old, one deep discharge kills them.

    I just had a battery manufactured in 2016 die because I left it off the tender for about two months, but my record was 11 years for an Optima Redtop which was always on a batteryminder charger until it fully discharged because of a voltage leak when it was off the tender for a week and that finally killed it. Here's what I have been using for the last 7 years:

    https://www.batteryminders.com/batteryminder-model-128cec2-12v-2-4-8-amp-charger-maintainer-desulfator-lithium-charger-maintainer/. This includes the desulfator, which seems to really increase battery life. It also charges lithium batteries if you upgrade in the future. One charger can handle at least two batteries, provided they are the same type.

    My circuit boards went out after about 5 years, and they sent me new ones for free even though they were out of warranty as they said they had production issues the year they were made, and that was about a 20-minute project. I have two of these and when they give up the ghost, I'll certainly be getting more given their support.

    Todd
     

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