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Need more input on dual batteries

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ftn96, Jan 9, 2002.

  1. ftn96

    ftn96 1/2 ton status

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    I've poundering this too much in one day I know, but Im obsessive like that. I like the idea behind all the isolator stuff, the sales hype obviously got my attention,
    but after hearing about some of you using switches and relays...I wanted to hear more from you guys and what if any problems have you had with keeping both charge levels up and drain off problems if any or....basically any draw back or benefits besides the price difference.
    I mean 149.99 is not out of the question but makes me want to study other avenues prior to that.

    Thanks up front. I need all the help I can get. I hate electricity, not really scared of it, just ignorant and un trusting, but thats the same thing isn't it? [​IMG]

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  2. outlaw612

    outlaw612 1/2 ton status

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  3. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    I di the Wrangler NW kit. Seems to work great but will know more when I get the new winch on there and put it under a load.
    No signs of any probs after 8 months.

    Dave

    Horn Broken... Watch For Finger.
    <a target="_blank" href=http://coloradok5.com/gallery/Daves-Pics>http://coloradok5.com/gallery/Daves-Pics</a>
     
  4. FWP

    FWP CRS

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    I haven't had any problems. I remember once a week to flip the switch, watch the voltmeter, and charge up the secondary. The second battery stays charged, unless I let the truck sit for more than a few weeks. I use that battery for nothing, other than a backup. HTH

    <a target="_blank" href=http://coloradok5.com/gallery/75K5>http://coloradok5.com/gallery/75K5</a>
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    You should go check out www.surepower.com. These people are the original designers of dual battery isolators. I have used their products for years and have never had any problems with them.
     
  6. ftn96

    ftn96 1/2 ton status

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    Thats where Im thinking here... Im gonna run all my other acessories of the regular battery and have the #2 for the winch only or as a back up. But shouldn't the battery stay charged for more than a couple of weeks with no load?????

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  7. BlueBlazer

    BlueBlazer 1/2 ton status

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    You could just do a setup just like the diesels have. They have no isolator from the factory and it works just fine. You can get the second tray off of a diesel and get some more battery wiring, hook it in series and be done with it. It would be a lot cheaper and less complicated.

    82 K5, 6.2L Diesel, sm465, np205, 14 bolt welded, 8 lug 10 bolt lock right, 410 gears, 35" Mud Kings
    SPEAK SOFTLY AND DRIVE A BIG TRUCK
     
  8. ftn96

    ftn96 1/2 ton status

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    Well, I say Im gonna, but I still need to pounder over this some more.
    And yes I have read txgmc's write and I like what he did, I just want to see if anyone else has had this same setup for a "while" and found any draw backs that would constitute going ahead and spending the extra now and get the Isolator from Hellro...

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  9. ftn96

    ftn96 1/2 ton status

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    I have checked them out, and it appears that they only make one for up to 120 amps, I may be wrong but I hit their site too. Im running a 170 amp alternator.
    I went to wireconnections.com, heurpowersomthingoranother.com, wranglermw.com, etc etc and surepower.com and sent them all E-mails!!![​IMG]

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  10. Liberator

    Liberator 1/2 ton status

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    That's how mine is set up too. The two batteries are just hard-wired together. I do have a switch, but I just leave them connected. No problems, been running like this since I bought the Blazer (about 2 1/2 years ago) without any problems. And the batteries were about a year old when I bought it. I thought about getting an isolator but I really didn't see a need for it. I still don't know exactly what the heck they do or why I would need one.

    Bo

    If it breaks, it wasn't good enough!
    http://coloradok5.com/gallery/liberator
     
  11. BigBad75K5

    BigBad75K5 1/2 ton status

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    If you run the batteries series that would make it a 24 volt system..you mean parallel.
     
  12. BlueBlazer

    BlueBlazer 1/2 ton status

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    I stand corrected.

    82 K5, 6.2L Diesel, sm465, np205, 14 bolt welded, 8 lug 10 bolt lock right, 410 gears, 35" Mud Kings
    SPEAK SOFTLY AND DRIVE A BIG TRUCK
     
  13. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Hey liberator, a battery isolator allows the alternator to charge both batteries, but once the vehicle is shut off the isolator separates the batteries from one another so that if your primary battery goes dead because maybe you left something electric on all night such as headlights or whatever you now have a backup battery to start your vehicle.
     
  14. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Hey ftn96, i just went to the surepower site, they make isolators from 25 amps all the way to 350 amps. BTW i bought my 120 amp isolator from pep-boys for $49.95.
     
  15. ftn96

    ftn96 1/2 ton status

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    But I dont thing Napa or PepBoys carries the 180+ amp isolator. If I can find one outside of the Hellroaring package I will get that. But if not I think Im just gonna hook them together through a switch, so I can have both running all the time and have it where I can switch to single either or. It may not be as good as the isolator but it will definaetly be better than running the stock single I have right now.

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  16. ftn96

    ftn96 1/2 ton status

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    Just got word from Surepower, they have a 160 amp and 240 amp.... Looks like if I do do the isolator deal it will be the hell roaring one. But I may just go ahead and hook them up parallel.

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  17. Burt4x4

    Burt4x4 3/4 ton status

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    Dude! Give Mike at Hellroaring an Email and ask him why an iso is needed he can expalin it well! The Hellroaring can take any amprage you throw at it so it doesn't matter if you change you alt down the road to a hight or lower amperage!
    Also the Hellroring product is the smallest on the market it is also a true isolator/combiner, with the remote module kit installed you can also tell when your altinator quits puttin out juice!! In cab diagnostics[​IMG]!!!
    I love my BIC from Hellroaring and would recomend it to everyone!! Small, effitiant, keeps both batts charged, allows you to completly seporate the batts manully, combine the batts for twice the power when winching(if needed). It is the most modern up to date way to run a dual batt system!!!!!!
    Customer service is AWSOME too! My first one I litterally SMOKED it cuz I wired it wrong and hellroaring sent me a new one FREE, even after my dumb drunk ass burnt it up[​IMG]!! I thought for sure I ate my 150 bucks that day!!!!
    Good luck
    my .02c

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://coloradok5.com/gallery/Burt4x4>http://coloradok5.com/gallery/Burt4x4</a>
     
  18. ftn96

    ftn96 1/2 ton status

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    LMFAO!!!!![​IMG] Yeah, beer and electricity do not mix well!!!!

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  19. Boss

    Boss 1/2 ton status Author

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    I also run the Iso/combo unit from Hellroar. Burt said it all :) It's soooo easy to hook up too. You mentioned above you wanted to run all your accessories off the main battery and the winch off the second. I wouldn't recommend that. I would run everything off the main battery including your winch. Use the 2nd battery strictly as a backup. This is where the Iso/combo from hellroar is key. You can keep the back up charged at full, but still isolated from the main battery. Or, if you really just want to run two batteries at the same time all the time, then just flip the switch to combine them and leave it there. But this way, you won't have a backup if you left the light on or winched all the way down and your truck cut off or whatever. But your batteries should last longer this way, since they won't get drained as much.
    Boss

    Pic of my truck Before N' After
    <a target="_blank" href=http://coloradok5.com/gallery/BeforeNAfter>http://coloradok5.com/gallery/BeforeNAfter</a>
     
  20. ftn96

    ftn96 1/2 ton status

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    Well, from everything I've read. Seems like the isolator's only real benefit is that it keeps juice from draining from one battery to the other. If everything is connected correctly I dont really see a need for that.
    Im probably going to get a marine Perko 250 switch for 36 dollars, that will allow me to run #1 or #2, both or nada.
    And leave it on both, until Im in fear of running it low from winching or whatever then use one and keep the other as back up. I have a 170 amp alternator, so the only time Im really gonna have to worry about it is if I have to run the winch with the truck not running. This route Im only looking at $36 for the switch, and wire.
    Thanks for all your suppurt and info fellas. I'll let you all know how it all works out.

    Still hoping the GOV'T will ban the use of loud stereos with RAP music. [​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     

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