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Dual Battery Setups! Let's see them! Multiple Batteries Thread!

Discussion in 'Technical Chat' started by MJonaGS32, Sep 20, 2013.

  1. Mar 18, 2018 at 6:20 AM
    #1841
    twhalm

    twhalm Well-Known Member

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    You are probably fine. I would suspect that you are losing a bit through the frame. I had troubles with my setup when I tried grounding low amperage accessories to the frame. But it sounds like you are charging just fine!
     
  2. Mar 18, 2018 at 7:10 AM
    #1842
    YamaDirtrider

    YamaDirtrider Custom bumpers @FORT-ifyRigs

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    What hasn't been modified?
    Did you add a ground wire from the battery directly to the frame?
     
  3. Mar 18, 2018 at 8:18 AM
    #1843
    Gaunt596

    Gaunt596 Resident Otaku

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    Hey guys, were getting people together for another batch of Iggy's wonderful battery tray and mounts for MLACR/RTMR. These also fit non-TRD off road trucks, provided you dont have an ABS pump on the passenger side, or a smog pump mounted there. were already at the minimum 5 for the go ahead, but the more people the merrier!

    sign up here https://www.tacomaworld.com/threads/2nd-gen-or-second-battery-mount.419262/page-6
     
  4. Mar 18, 2018 at 6:10 PM
    #1844
    Skeletoy

    Skeletoy ARB Wanna-be

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    Lots!

    Yeah, aux battery ground does directly from the negative post to an 8mm threaded hole on the frame. which i sanded to bare metal before bolting on. Start battery is grounded to the frame by the engine like normal.
     
  5. Mar 18, 2018 at 7:48 PM
    #1845
    steveo27

    steveo27 Ask me about my weiner

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    The same shit everyone else has.
    100% happy with my 2nd battery set up finally.

    I got around to redoing the grounds today after putting it off for months.

    [​IMG]

    [​IMG]
     
    xsf18cdf and 01x4 like this.
  6. Mar 18, 2018 at 8:12 PM
    #1846
    ClevSix

    ClevSix Well-Known Member

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    Good choice of beverage...
     
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  7. Mar 20, 2018 at 8:37 PM
    #1847
    panardo

    panardo Active Member

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    sorry to be so lazy , been reading all around and most of dual batteries setups are for 2nd & 3rd gens...is hard to find 1st gens ones, I don't know why>>
    My questions are;
    I want a battery to be able to crank a cold start, and the aux one to power subwoofer amp and amenities under camper on the bed, do I need to have 2 same specs batteries or i could use the stock one and add a deep cycle one for the accessories ?
    what if I want to feed the aux battery with solar, is it a whole set up or just an add on?
    what is needed to avoid alternator to work extra, how can the system get controlled?
    Thanks !!!
     
  8. Mar 20, 2018 at 8:59 PM
    #1848
    steveo27

    steveo27 Ask me about my weiner

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    The same shit everyone else has.
    Upgrading from a single 4 gauge ground grounded on the inner fender to dual 2 gauge grounds (1 to the fender and 1 to the chassis) made a difference. The house battery chargers a littler higher now - from low 13v to mid 13v. Glad I did the upgrade.

    I do have a question now.

    I would like to insulate both batteries now that I have the set up all sorted out. Looking for any info/ideas on a DIY battery "blanket". Everything Ive seen for purchase are all heated wraps. Im kicking around the idea of using foil bubble wrap to make blankets.

    :cheers:
     
    ClevSix likes this.
  9. Mar 20, 2018 at 9:21 PM
    #1849
    Fifthwind

    Fifthwind Master of None

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    I'm trying to understand why you would want to insulate your battery. Granted on rare occasions it does drop below zero in western PA, but batteries are more negatively affected by heat than cold, and charging batteries adds heat. I would want to keep mine cool all summer and only consider insulating when below zero.
     
  10. Mar 20, 2018 at 9:32 PM
    #1850
    steveo27

    steveo27 Ask me about my weiner

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    The same shit everyone else has.
    Basically for the mentioned extra cold days we do have here. After having so many colder than usual day this past winter, having the option for a little extra insulation doesnt seem so bad if it can be done for minimal cost.
     
  11. Mar 20, 2018 at 10:05 PM
    #1851
    Digiratus

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    I agree 100%. When I did mine there wasn't much info on TW about how to do it on a 1st gen. I ended up putting my second battery in the bed and isolating it with an ML-ACR. I did use two matching AGM type batteries because I was concerned about being able to fully and evenly charging both.
     
    panardo likes this.
  12. Mar 22, 2018 at 7:27 PM
    #1852
    EricTRD4x4

    EricTRD4x4 Well-Known Member

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    Anyone install/have experience with the Genesis Off-road kit for 3rd gen?
     
  13. Mar 22, 2018 at 7:59 PM
    #1853
    ClevSix

    ClevSix Well-Known Member

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    The stuff that works on a 2nd & 3rd Gen pretty much works on a 1st Gen. The basics are the same no matter what truck you're working with.

    Do the batteries have to match? No, but you have to take that in to consideration when configuring the charging system.

    Can you add solar to charge the Aux battery? Sure... Once again you have to figure out how you want to hook everything up.

    Avoid working the Alternator? Not really sure what you are going for here...
     
  14. Mar 30, 2018 at 7:45 AM
    #1854
    steveo27

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    The same shit everyone else has.
    Finally got around to hooking up the rocker switch for my ML-ACR.

    What does the led in the switch do? Mine doesn't light up in any of the 3 positions.

    I hooked it up per the wiring diagram off the Bluesea website. The switch does function properly, but the LED does nothing.
     
  15. Mar 30, 2018 at 8:06 AM
    #1855
    Scott B.

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    The LED indicates when the batteries are tied together.

    Hit the switch on the ACR to tie the batteries together. If the LED does not light, there is a wiring issue.
     
  16. Apr 1, 2018 at 9:41 AM
    #1856
    SilverGhost

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  17. Apr 1, 2018 at 9:44 AM
    #1857
    YamaDirtrider

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    What hasn't been modified?
    MonkeyProof likes this.
  18. Apr 1, 2018 at 11:22 AM
    #1858
    MonkeyProof

    MonkeyProof Power Top

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    This is great for the peeps who want a Plug and Play option and don't want to relocate the Voltage Sense Wire to increase the alternator output.

    I used this post as guidance to relocate mine.
    https://www.tacomaworld.com/threads...batteries-thread.295653/page-34#post-11285698

    My cold start voltage is always above 14.4v (verified with the Torque App) after doing the VSW relocate, before it was always at around 13.4 - 13.5v.
    20180121_084046.jpg
     
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  19. Apr 3, 2018 at 7:11 AM
    #1859
    cynicalrider

    cynicalrider #NFG

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    Mike what batteries are you running? Looking at this one for my main/starting, wouldn't be opposed to it as the second as well:

    https://www.amazon.com/dp/B01GQSBJD...olid=2079LZ8C9DA1A&psc=0&ref_=lv_ov_lig_dp_it

    The specs say it should be able to handle slow draw, and starting very well. It will likely be my starting main single for a while till I can afford to go dual. My fridge hits the cut off so easily currently but I have it set to the most sensitive setting. I don't want to be left stranded, even with a jump pack.
     
  20. Apr 3, 2018 at 11:04 AM
    #1860
    Digiratus

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    Mike, I have two of these same ones. They are pricey but solid. Mine are 2 years old now. No trouble whatsoever.

    Every once in a while @ramonortiz55 does a group buy on these. I saved about $50 each on them plus free shipping IIRC. Worth it.

    https://www.tacomaworld.com/threads/closed-northstar-battery-group-buy-5-0.517933/
     

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