Dual battery with factory camper wirring? 6.0l gas?

[2016HD]

Just wondering if anyone has any info on wiring in a secondary battery in 2016 Silverado 2500HD with gas engine? Spare tray is there. Truck also has the factory camper wiring. What will it take to install and keep a second battery charged. Dont need or want it for starting. Just there as a spare and to use for my electric boat motor while camping.

Thanks

 

[MrNasty]

Basicly, something like this. Im not sure what kind of isolator they use in the kit, I used a cole hersee isolator on mine, but this kit is the main stuff you need, besides the battery and the battery hold down, which can be gotten at a local dealership or online parts store. I also wired in a fuse block off my second battery so I could run all my added stuff off the fuse block. Mine is on a 2015 1500, but it should still be the same setup.

 

http://m.ebay.com/itm/HEAVY-DUTY-DUAL-AUXILIARY-BATTERY-ISOLATOR-W-CABLES-COMPLETE-KIT-150A-/151177241380?nav=SEARCH