Adding Second Battery to 2012 2500HD gasser

[Frozen001]

Has anyone added a second battery to a 2012 2500HD gasser? I would like to have the factory isolation, so if you have added it with the factory setup, can you provide the part numbers?

[txab]

Try searching before you ask. Plenty of threads on the subject not only on this site, but all over

 

 

 

https://www.google.com/#q=dual+batteries+site:gm-trucks.com

[Frozen001]

Obviously I did a search, and none of them were were either a) for the NNBS , b) a 2500 or c) had the GM part numbers. Any way I think I have it figured out now. Thanks. Looks like for all GM parts it is just under $300 on-line. A bit steep but it will function like I want it to and look stock.

[txab]

I know there is one for the 900 series with GM part #'s listed. Glad you got it figured out.

[sdeeter19555]

There is no "kit" for the newer trucks, as txab indicated. For the previous generation yes, for the 2012 no.

 

I went down this road, the parts guy was very helpful; but it would have been cost prohibitive to use GM parts (they quoted me something like $1500). You would be further ahead to buy the battery, battery hold down, the cables, and an aftermarket isolator, and build it yourself. I simply paralleled a second battery in, and it only cost me about $300...a decent isolator would have added less than $150.

[ujtruck]

If you like poor mans way, here is what i did to my last truck, dual bat setup

 

cost me way less, compare to any other solution http://www.gm-trucks.com/forums/topic/148177-poor-mans-dual-battery/?hl=%2Bdual+%2Bbattery