2nd (REAR) battery
With WARN been considered as a hitch receiver type, power needed to be ran into the rear part of vehicle.
Ran positive from the switch under the hood and connected it to the one in the rear. Not sure how / why / what / when... as far as all the "breakers" & monitors that others install.
I understand that my setup might be done in a very simple and not-very-thought-through way, but it works. I dont consider myself an expert electrician by any means, but believe to have common sense on most of things that I install. Feel free to ask questions...
As of now (almost 12mo. later), everything works and both batteries seem to operate just fine, keeping the winch running as well as other electrical things in the XJ. I have a LED flashlight that is connected into a cigarette plug which is connected directly to the rear battery.
Winch runs great both front / back, without any issues with electrical or charging system.
As always, pictures...
Rear Winch plug...
Just a quick "trim" and all done. Will have a panel made at a later time to cover it all up.
BATTERY SWITCH...
Find it very simple and easy to use... in case anything goes wrong, the breaker will turn off connection between batteries...
On previous trips, disconnected the batteries, and RAN everything off the rear battery - all 3 plugs on the connections were taken up by charging batteries on cellphones, laptop, DSLR, video, flashlights... Battery never went dead. In the morning, I would just start up the engine, turn on the breaker, and keep driving... next night would be same "charging" process of all accessories...