Dual Batteries - How does it work?
I purchased my DMax in the summer. Now that winter is here, I was wondering about how the two batteries work? Are they simply interconnected or is one used for certain loads and the other for other functions? If I want to park the truck for several weeks, do I need 2 float chargers?
I guess I should pick up a "Haynes" for the electrical diagrams...
2013 2500HD Extended Cab, Duramax, 4WD
Stock drive line and fuel system.