One thing that was quite annoying on the Colorado trip was dealing with the cooler. We bought a good roto molded cooler which worked great in the sense that it kept ice for a surprisingly long time (I think some ice at the bottom lasted for 10 days, although we did put more fresh ice on top.
However dealing with the cooler was annoying and expensive. The thing fully loaded weighed about 100lbs I would guess and lifting it up to the bed multiple times per day was no fun. We also spent $150 on ice in 4 weeks ( some of it dry ice, which worked phenomenally but was impossible to get in most places.
Anyway I’m installing a 12V fridge. I looked at all the different options and being an electrical engineer by training, I chose to do it the right way. I’ll be using a 100Ah LiFePo battery that will be mounted in the bed. It will be charged by a RedArc BCDC1250D powered through the alternator, with the option to add solar in the future.
The fridge I chose is a 50qt ARB. It fits perfectly on the drop slide I want to mount it on (ClearView EasySlide 100 Plus) and is a great size (coming from the 75qt cooler that was half-filled with ice) without taking up half the bed. I’m also planning to power a bed mounted air compressor with the battery to eliminate 40 minute engine idle periods we encountered when airing up.
I’m still waiting for parts to come in but I started already by running 2ga cable from the starter battery to the bed. The RedArc charger also need ls an ignition signal which I conveniently put in the same wire loom as the power cable.
I had to find a switched ignition power cable to splice into. I was originally super happy to find
this document outlining the wires to splice into, but the connections at specific connector pins didn’t match up with my truck’s wiring at all. I ended up choosing a random wire that was hot when the ignition was on and off when the ignition was off. I cut it and connected a small wire to it via a butt slice crimp connection with adhesive heat shrink that should prevent corrosion.
I ran the power cables on the side of the driver side frame. The only tricky portion was hiding the loom behind the wheel well as there isn’t much room there because of OEM wiring also being run there. To get into the bed, I removed one of the plastic plugs. I had to cut the bedliner in order to get to it, which was pretty easy (if you don’t account for squeezing all the way under the Decked with one drawer taken out). I cut a hole in the plug, ran the loom through it and reinserted the plug and fixed it in place with gorilla glue afterwards.
I put a PowerWerx SB175 connector on the end of the cable. It will connect to a plywood board I’ll mount the charger and a bunch of other electronics to once everything is there. The board will be covered in automotive headliner that’s similar to the SnugTop liner and will be mounted in the cab-driver side corner of the camper shell.
Mocked up positioning of some parts on the board. There are a bunch of parts not yet delivered.
Schematic from the BCDC1250 manual I’m roughly following.
I’ll write some more updates on the install once it gets further along.