Dual Battery

JJinMT · October 6, 2007

Am interested in adding second battery to my righ 01 GMC 2500HD 8.1. Where can I get materiel and some instructions?

Zembonez · October 6, 2007

Am interested in adding second battery to my righ 01 GMC 2500HD 8.1. Where can I get materiel and some instructions?

Might want to do a search. I've seen some recent posts about this very subject...

Tyler_LS1 · October 6, 2007

Check these out ive got the headlight mod from painless and they make a good quality product.

Dual Batteries

logfarmer · October 15, 2007

You can buy the battery tray at the dealer. Mine was corroded when I got it used so I went to the dealer and bought the tray there. The auxilary batery was allready hooked up when I got the truck. The auxiliary batery is mentioned somewhere in the owners manual.

Martin

fourwheelinfool · October 15, 2007

I just finished adding one on my truck. I'll post a picture and a walkthrough later today. Its pretty easy, but can be time consuming routing new cables. I came from a worn down old batt to two new ones so I don't know if theres a difference with starting versus a new batt but I definetly notice a difference now. My truck will love the winter!