1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

How to Add a Second Battery to your Truck.

Discussion in 'GM Electrical Tech' started by Springthing, Mar 13, 2009.

  1. ChevyFan

    ChevyFan Administrator Staff Member 5+ Years 5000 Posts

    Great stuff guys. Love posts like this.
  2. PantheraUncia

    PantheraUncia Active Member 2 Years 1000 Posts

    I did a second battery upgrade to my 2000 Silverado, did not use the isolator, batteries are identical, but I am not loading the batteries "yet" to where it is a concern.
  3. Johnrockys

    Johnrockys New Member


    I don't have that little box in my truck I just did the the big 3 upgrade can't I just run a fuse holder from you to other instead
  4. Jim Marshall

    Jim Marshall New Member

    Does anyone have the photos to this thread? I would like to add a 2nd battery to my 99 suburban

Share This Page