2nd Battery

I have a spot for a second battery in my 07 suburban and just happen to have a extra brand new DieHard SUV battery that I just don't want to let sit a rot.
 
What will I need to install the DirHard battery in my suburban if it is at all possible?
 
Would it be a benefit or an over kill on the alternator?
 

I was wondering the same thing.  I have had issues with the BCM running the battery down and even after 2 trips to the dealership the battery still seems to run down quickly.  Although we do a lot of lake & tailgating with the rear hatch open & radio on.  I think adding a second battery would help with this situation.  Just leery about adding anything to the electrical system on these high tech machines.
Can this be done safely w/o voiding any warranty items, etc...?
 
Thanks for any feed back...
 

There is a post on here about the second battery tray. ZX gave us all the info. I don't know exactly where the post is.
 
Paul

I think this is going to be my first mod. Would this void my warranty?

Try doing a search on second battery.  One of the threads mentioned a GM harness to use to do it with so shouldn't affect your warranty.

quote:

ORIGINAL: BigAlCaribe

I think this is going to be my first mod. Would this void my warranty?

One of the members here had the dealer do the install just to be safe

http://www.chevroletforum.com/m_14625/tm.htm

Not too sure about understanding those schematics, I'll go check with my service dept. Should be fun...