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Dual Battery Install Instructions for a Chevy

Discussion in 'Chevy Trucks' started by streetfrog, Jan 20, 2008.

  1. Philbilly2

    Philbilly2 PlowSite Veteran
    Messages: 3,293

    I would not tie an new battery to an old one for any extended period of time as they will drain each other back and forth. I would just let it be till you get both, it has been working this long.
     
  2. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    Yes but I installed plow wiring on the passenger side. For the solenoid at least. So either I activate the back up truck, or I run the plow off of a standalone secondary battery. It also will not be an extended period of time, maybe tops 6 hours. not worth the risk? Both batteries should have been here by now but there was a shipping issue on the second battery even though they were ordered at the same time...
     
  3. Philbilly2

    Philbilly2 PlowSite Veteran
    Messages: 3,293

    I would say with the cost of an Optima, I would not tie the two together for any time. If you snag another lead from your alternator and charge and run that battery doing the plow on its own, you should be fine.

    I am sure someone else will chime in and say that I am wrong, I just know you can kill a good battery in a hurry if it is hooked to an old one. Would hate to see you wreck a $200 battery.
     
  4. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    Thank you. I will hold off until Saturday and see if the other battery arrives early by any Chance. If not I will run the secondary alternator cable to the aux battery temporarily.
     
  5. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    my aux has my led flasher and snowplow i think
     
  6. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    Recently finished a dual battery setup. Upon starting the vehicle truck is fine. When accelerating there is a strange whining noise and I haven't been able to figure out where it is coming from. Is this normal? Any ideas? I followed the posts recommendations and ran two optima red top 34/78s. I ran the ground from above the firewall middle driver side to the alternator mounting bolt as seen in the pictures. Is this a problem?

    https://imgur.com/a/mAWXV

    Any help is appreciated. Thank you.
     
  7. Philbilly2

    Philbilly2 PlowSite Veteran
    Messages: 3,293

    Have you tied shutting your radio off?
     
  8. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    Radio was off. I kept it off to listen for the noise.
     
  9. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    what about postive to postive and negative to negative ?
     
  10. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 9,463

    This with the ground you have.

    Also did you coil up any of the wires?
     
  11. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    I apologize, but I don't know what this means.
     
  12. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    all im saying if i could listen to the radio that would drive me nuts
     
  13. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,627

     
  14. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    wtf is B W A
     
  15. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,627

    But Who Am I

    took an attitude a few years back, try and give the best info i can, or quote the best info i can, and you can take it or leave it!...not going to argue about it

    Thumbs Up :laughing:
     
    FredG likes this.
  16. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    i never heard that saying but whatever i guess
     
    leolkfrm likes this.
  17. OneManWithAPlow

    OneManWithAPlow Senior Member
    Messages: 184

    Redid all of my wiring, went with OFC instead of CCA and got everything nice and tight with die electric, got my grounds good checked all my connections etc.

    When i operate my plow, i still get dimming of any lights that are on. Running two red top optimas, 1/0 gauge wire, fused both batteries, everythings grounded with the stock alternator after following advice in original post. My dome light dims, dash lights dim, and headlights dim..any suggestions?
     
  18. PLOWMAN45

    PLOWMAN45 2000 Club Member
    Messages: 2,888

    is alternator in good shape
     
  19. Philbilly2

    Philbilly2 PlowSite Veteran
    Messages: 3,293

    Have you tested the amp draw on the plow motor?
     
  20. Randall Ave

    Randall Ave 2000 Club Member
    Messages: 2,640

    Your going to get some dimming. With it running, what is your voltage? Then while operating the plow, what does the voltage drop to?