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double batterys on the hemi

Discussion in 'Ram Trucks' started by plowboy21, Dec 13, 2007.

  1. plowboy21

    plowboy21 Member
    Messages: 30

    :help:is there anyone that knows how to hook double betterys up to the 03 hemi 2500

    i have the blizzard 860sw and when i run my light bar and plow it runs the battery right down to almost shut off and i have the 160 denso alt so i was thinking of putting a second battery in my tool box running off the orignal in parallel will this work or am i missing something:eek:
  2. ProSeasons

    ProSeasons Senior Member
    Messages: 624

    No room under the hood, eh? If your going to put that extra battery in the bed, use a big group 78. (semi truck size)

    Yeah pos to pos and groung that bad boy good to the frame with a hunk of #2 guage welding cable. Heck, use 2 pieces in parallel.

    That Hemi will plow all day.
  3. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 7,921

    Get the battery tray for the right fender from your dealer it will bolt right in, no drilling necessary.
    The tray has a bracket on it so you can remount everything that was dislocated by the tray.
  4. packey

    packey Member
    Messages: 97

    if it will not fit under the hood put it in the bed. Go to the welding supply stor and get you some # 2 cable. Pos to Pos Neg to Neg and as was said earlier ground it .I just set my older dodge up with it's second battery and a 125 amp altenator. all my battery calbes are 2 gague they are grounded to body, block and frame. I upgraded the other wires up to 6 gauge to ignition coil. Yours should already be 6 gague. both of my batterys are P1's Good luck on the new dodge Hope she plows as well as the old ones do.
  5. plowboy21

    plowboy21 Member
    Messages: 30

    yeah i live im michigan just got in from 41 hours of plowing andonlything that happend is a burnt out brake light damn it i love the truck pushes 14" of the white stuff in 2 wheel drive just have to be easy on the gas pedle