Winter battery worries.

[02tahoeindiana]

This threads a little backdated but I wanted to throw out my knowledge. I have the same drain with my 08 Denali although new AC Delco battery that holds solid voltage if I leave my truck parked for 4-5days locked the battery will be dead. I bought a priority start which is what is on alot of emergency vehicles that you hook on the battery and once it drops below 11.8V it will cut power to the battery. So all I do is hop in truck after how ever long it sets, tap the brake pedal and that triggers it to reconnect power and I can fire the truck up. Ended up putting one on the tahoe and work van too they work excellent and the piece of mind to me is worth the $. Heres a link

http://www.amazon.com/Priority-12-V...qid=1383935420&sr=8-1&keywords=priority+start

 

[08grey]

Thanks for the input.