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dual batteries

Discussion in 'Ram Trucks' started by dodgegmc1213, Jun 9, 2014.

  1. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    I know theres probably a bunch of threads on this already, but im to lazy to search. I want a second battery to run my plow and salter, I know the batteries have to be the same and bought at the same time. Im going to run them parallel + to + and - to -. My question is should I run another wire from the alternator to the second battery? Also I was gonna have a shut off switch so I can shut the second off in the summer or should I just leave it alone? Like I said only the plow and salter would be to that battery, so it wont be used in the summer.
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,924

    No. No need to run a second alt wire. And no need for the disconnect.
     
  3. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    Agreed

    If you disconnect the battery for the summer you're going to kill it if you don't have a maintainer on it
     
  4. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    thanks for the info guys. ill just hook them 2 together and leave it alone
     
  5. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    Another question, what are some good batteries to look into? Long lasting and powerful enough? I got duralast gold in the truck now and is goin on 3 yrs. Just seen some reviews on duralast gold and they wasnt good. So wanna know what everyone else is running
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,924

    Asking what batteries is like asking what brand trk.
     
  7. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    Johnson controls makes a lot of them. Deka I think is the other one. They're all relabeled pretty much

    There's at least 10 threads every year about them. I have advanced golds or whatever they call them
     
  8. ColliCut

    ColliCut Member
    Messages: 33

    I run an Odyssey. It's made by Enersys. Seems to work great so far.
     
  9. Buck331

    Buck331 Member
    Messages: 79

  10. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    so if they provide more power and what not then regular batteries, is there a need for dual then? probably wont hurt tho
     
  11. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,924

    Batteries are storage. Alternators are the supply. If you alt can't keep up ( most can't) then the batts supply the needed extra. Dual batts are nice. But are nit always necessary. All up to the owner
     
  12. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    Odyssey used to be stupid expensive. Not sure if they still are or not
     
  13. ponyboy

    ponyboy Senior Member
    Messages: 954

    Just get a bigger alternator and be done
     
  14. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    another question if anyone can help, but I am looking at a 250 amp alternater.
    Idle: 180 amps
    hot idle at 200°F: 170 amps
    Max: 250 amps
    hot max at 200°F: 230 amps
    I wanted to do dual batteries but if I get this should one still be fine?, but is this to much amps? While plowing im sure its great but when not plowing it seems like alot, I dont wanna blow the battery up, but if I don't need a second battery im not gonna mess with a second
     
  15. maxwellp

    maxwellp PlowSite.com Addict
    Messages: 1,112

    It will only put out what is needed to it's capacity. I have a 250 amp in one truck with only one battery. This is going on year five for the setup. Works great. Lights do not dim, I also have dual burn head lights, so that is 4 head lights on all the time plus 2 130 watt back up lights. I tested it when I put it in and it would do 186 amps at idle.
     
  16. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    Thanks maxwell
     
  17. gasjr4wd

    gasjr4wd Senior Member
    Messages: 284

    Also do "the big 3 upgrade"... actually makes a difference. Another old trick is swap to a little smaller pulley on the alternator, but remember nothing can replace a big alternator... see if you can fit in the battery trays from a Diesel. Cables also. Cables must be in tip-top shape.
    Last batch of batteries I got for all the rigs came from Costco. Don't laugh. They are made by interstate, just cheaper. I think the ones in the truck are combo crank & deep cycle.
    In first plow truck I ran yellow top optima. Cost more but lasted about 10+ years.
     
  18. MajorDave

    MajorDave Senior Member
    Messages: 943

    14 x watts you run = Amperage of Alternator you need. Higher number just means recharges battery faster...

    I am also looking to do second battery in Dodge. Did research last year, just never did. I looked, but like I said - last year --- Find any good deal on packages (combos of wires, fuse, clamps etc) out there??? I see some, but seem to be over-priced. Guess you could buy separate, but hell, that may add up??
     
  19. dodgegmc1213

    dodgegmc1213 PlowSite.com Addict
    Messages: 1,001

    im just gonna get the 250amp alternator and a new battery and run that this winter to see how it does.
    majordave check delcity.com
     
  20. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,924

    Watch delcity. I have found there prices are a tad high. Just fyi