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Let's talk batteries

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Wixo, Feb 27, 2019.

Page 5 of 8
  1. Jun 8, 2020 at 7:53 AM
    #81
    SearArtist

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    SearArtist, Jun 8, 2020
    #81
  2. Jun 8, 2020 at 9:32 AM
    #82
    adk_tacoma

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    adk_tacoma Well-Known Member

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    adk_tacoma, Jun 8, 2020
    #82
  3. Jun 8, 2020 at 11:47 AM
    #83
    SearArtist

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    I believe they do. One of the reasons I steered away from them.
     
    SearArtist, Jun 8, 2020
    #83
  4. Jun 8, 2020 at 12:07 PM
    #84
    adk_tacoma

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    adk_tacoma Well-Known Member

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    Hmm. What will happen without the charger?
     
    adk_tacoma, Jun 8, 2020
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  5. Jun 8, 2020 at 12:10 PM
    #85
    SearArtist

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    the memory of the battery would get stuck at around 80%.
     
    SearArtist, Jun 8, 2020
    #85
  6. Jun 8, 2020 at 12:25 PM
    #86
    thedriza

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    thedriza Well-Known Member

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    thedriza, Jun 8, 2020
    #86
  7. Jun 8, 2020 at 12:35 PM
    #87
    adk_tacoma

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    adk_tacoma Well-Known Member

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    Then its probably too late for my battery. It was bought for a '05 dodge dakota in 2012, out lasted that truck and was stuffed into my '16 taco in 2017 when I added the winch from that same dodge.
     
    adk_tacoma, Jun 8, 2020
    #87
    shakerhood likes this.
  8. Jun 8, 2020 at 12:37 PM
    #88
    SearArtist

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    maybe, maybe not...you could try a deep discharge on the battery then put it on a charger and see what happens...truth be told, you probably won't notice a difference between a 100% charged and 80% charged AGM, until you start discharging it on a regular basis.
     
    SearArtist, Jun 8, 2020
    #88
  9. Jun 9, 2020 at 3:36 AM
    #89
    b3itz

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    b3itz Camp Life

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    I have 2x odyssey pc1400 g35s. I use a duralast agm charger from AutoZone and it seems to work great. Why do we need a specific odessy charger?
    And now that VF has allowed us to alter the alternator settings, my truck charges them at 14.5-6v
     
    b3itz, Jun 9, 2020
    #89
    thedriza, shakerhood and doublethebass like this.
  10. Jun 9, 2020 at 4:04 AM
    #90
    SRBenjamin

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    AGM is the way to go, You can get a good AGM for $150.

    https://www.walmart.com/ip/EverStart-Platinum-AGM-Battery-Group-Size-24F/286630898
     
    SRBenjamin, Jun 9, 2020
    #90
    Wixo[QUOTED][OP] likes this.
  11. Jun 9, 2020 at 4:16 AM
    #91
    b3itz

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    b3itz, Jun 9, 2020
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  12. Jun 9, 2020 at 5:45 AM
    #92
    SearArtist

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    I’m concerned that on long trips, charging the battery at high voltage for long periods will actually overcharge them. At some point they get full and they need to be on a float charge at around 13.6-13.8v. Otherwise you can damage them by overcharging.
     
    SearArtist, Jun 9, 2020
    #92
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  13. Jun 9, 2020 at 6:03 AM
    #93
    b3itz

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    b3itz Camp Life

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    I don't disagree with you.

    Quick update - i've had my VF altered tune running @ 14.5-6v for about a week with some normal puttering around town - i probably burned a half tank of gas.
    My batteries were at 95% this morning rather than the 85-90% previously from the stock 13.5v.
    I'm wondering about getting some $30 solar AGM charger, and a small thin panel for my roof rack - that way the batteries almost always stay 100%.

    Meanwhile, i'm going to email Odessey and ask about constant charge rates. I didn't do enough homework before i did this :)
     
    b3itz, Jun 9, 2020
    #93
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  14. Jun 9, 2020 at 6:09 AM
    #94
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    how are you measuring the battery charge percentage?

    I think I’m going to keep mine as-is and just put my charger on it once a month, now that I’ve already bought it. The aux battery is on a redarc bcdc so i know it’s being charged properly.
     
    SearArtist, Jun 9, 2020
    #94
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  15. Jun 9, 2020 at 6:13 AM
    #95
    b3itz

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    I just hooked up my AGM charger and it said 95% and started charging it to 100%. I don't have a really good way to read the batteries besides that.
    I also use a bluetooth monitor https://www.amazon.com/gp/product/B07TJ2GYJL/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 paired to my android phone, but i'm pretty sure the percentage is calibrated for Lead Acid, and not AGM because it always says 100% until i start drawing from it.
     
    b3itz, Jun 9, 2020
    #95
    doublethebass likes this.
  16. Jun 9, 2020 at 6:32 AM
    #96
    doublethebass

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    doublethebass aspiring well-known member

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    Let us know what they say :thumbsup:
     
    doublethebass, Jun 9, 2020
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  17. Jun 9, 2020 at 7:22 AM
    #97
    adk_tacoma

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    adk_tacoma Well-Known Member

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    What is the full charge voltage?
     
    adk_tacoma, Jun 9, 2020
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  18. Jun 9, 2020 at 8:17 AM
    #98
    b3itz

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    12.84v or higher
     
    b3itz, Jun 9, 2020
    #98
  19. Jun 9, 2020 at 8:21 AM
    #99
    b3itz

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    b3itz Camp Life

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    upload_2020-6-9_11-20-51.jpg
     
    b3itz, Jun 9, 2020
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  20. Jun 9, 2020 at 9:30 AM
    #100
    SRBenjamin

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    SRBenjamin Well-Known Member

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    This is BS! My AGM has been in about 6 months, the voltage on the battery when the truck is off, reads 13.1 volts That's more than full.

    Update, I've found in very cooled temps(sub freezing), the stock system needs at least 90 minutes to get a full charge.
     
    Last edited: Dec 1, 2021
    SRBenjamin, Jun 9, 2020
    #100
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