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Running a fridge without house battery is asking to be stuck wherever you use the fridge. For example, if you have the lights coming on each time a door opens and the radio playing, in the time it takes to pack up for a big trip you can kill the starter battery. If you use a fridge without 2nd source, only run it when engine is running.Any thoughts on if a dual battery setup is worth it if a guy isn’t going to run a fridge? The plan for electrical mods is a multi-mount winch that will likely not see very much use, some driving lights wired through the Land Rover auxiliary switch, a trailer brake controller, CB radio, and ARB single air compressor. Basically everything will only be used with the engine running, but I know these are electrically sensitive so I don’t want to piss off the electrical system fairies.
Any thoughts on if a dual battery setup is worth it if a guy isn’t going to run a fridge? The plan for electrical mods is a multi-mount winch that will likely not see very much use, some driving lights wired through the Land Rover auxiliary switch, a trailer brake controller, CB radio, and ARB single air compressor. Basically everything will only be used with the engine running, but I know these are electrically sensitive so I don’t want to piss off the electrical system fairies.

Thanks. I just don’t see the benefit of the fridge for my uses, which are DD, wheeling in the national forest, and 2-3 day camping trips. Wanted to make sure I wouldn’t overload the electrical system with the other accessories, but it sounds like it’s not an issue with the engine running.
I went ahead and bought the ARB heavy duty single compressor, it does fit fine in front of the spare battery box but there’s not a great way to mount it from a brief look. I’m leaning towards putting it inside the box and can move it if I add a second battery in the future.
I didn't see the benefit of the fridge either-and more importantly neither did the wife-till I decided we 'needed' one for VOT. Years later, our primary application is as you describe. DD, gravel roads exploring, and camping...and I'd say it is one of the favorite aspects of the truck. More importantly, the Minister of Finance (i.e. the wife), who had been skeptical at initial purchase, would say the exact same thing. We use it every single day. Anytime someone starts talking about wheels/tires/lifts/Expolicious jewelry like maxtrax, winches, snorkels I always ask 'have you baselined the maintenance, and have you considered a fridge since it will be the thing that brings you the most joy during ownership of the truck. Your results may vary, but don't knock it till you've tried it!
I mounted mine using the ARB mounting kits and using the bolt locations for the seat with some eyelet mounts in the 30 seat area.