Wiring in a 24 volt aux port in rear (1 Viewer)

[Frank Albarado]

I am wanting to run my Engel fridge in the back of my BJ41. It will run 12v or 24v so no need for a step down convertor. I also understand running it off of one battery is a no no. The idea is to run a direct line from the batteries to the rear with an inline fuse. I was hoping some of you more experienced folks could guide me in the right direction as to hooking it up correctly and a recommended wire size. I'm just not up to speed on 24volt systems. Thank you in advance!

 

[Freewheel]

If your truck is 24 volts, best to run the fridge at the same.
Simple wiring would be to take a wire off your high side battery positive and run it (with an inline fuse) to the positive of the fridge.
Fridge negative can go to the chassis for ground.
Wire size will depend on how much current the fridge draws during operation at 24 volts.
Figure out the amperage and then ask the internet what size wire you need for 24 volts at that amperage at the proper length. (it's a bit of a long run to the back of the truck, so better to go over rather than under on wire size.)