I Install a second battery in the truck with a battery isolator. The parts I used are linked below.
Battery Doctor isolator
https://www.amazon.com/gp/product/B00...
Battery clamp
https://www.amazon.com/gp/product/B07...
Battery terminals
https://www.amazon.com/gp/product/B07...
Battery wire
https://www.amazon.com/gp/product/B01...
Fuse w/ housing
https://www.amazon.com/gp/product/B01...
#1500 #silverado #sierra #Truck #GMC #chevy #chervrolet #automotive #mechanic #DIY #overland #overlanding #battery #4x4 #wiring #car