National Luna Dual Battery Install

Dual batteries are pretty much a necessity; from fridges to air compressors, they keep everything we need powered when we head off the grid.

The National Luna Dual Battery system was the first thing I planned on installing under the hood of the Jeep, because without adequate power, all of my accessories would be useless. Plus after spending a weekend at the Daytona 500, there is no way a single battery would have been able to power my fridge and still have enough power to start the truck for the drive home.

I’ll go out on a limb and say that any serious overland traveler should have a dual battery system in their truck. Not only can you run all of your accessories without worrying about your main battery, but in the event your main battery does die, you can still jump yourself.

My Setup:

National Luna Dual Battery Monitor

M.O.R.E. Dual Battery Tray

SPOD

Main Line Overland Tie Down Bracket

2 DieHard Group 34M Platinum Marine Batteries

I went with the National Luna over my old Piranha system because the Piranha is just way to big to fit under the hood of the Jeep. We tried to make it work but with all of the other parts that were going under the hood it just wasn’t happening. Plus Ben has been running his National Luna setup without issue, and he’s just as hard on his equipment as I am.

To secure the batteries, we utilized a M.O.R.E. dual battery tray along with the Main Line Overland dual battery tie down. I’m a big fan of their tie down bracket because it also doubles as a mount for the National Luna Intelligent Solenoid. It’s a great design that reduces the clutter in the engine bay, and keeps the components of the dual battery system easily accessible.

One of the reasons we selected the M.O.R.E. dual battery tray is because it leaves enough space in the engine bay to  install either the Magnuson Supercharger or AEV HEMI swap down the line.

I reused my SPOD from the Land Cruiser, and easily mounted it in the engine bay. Needless to say I’m a big fan of the SPOD system and their plug and play wiring that makes the job easy even for a novice like myself.

I mounted the digital monitor right next to the steering column using 3M velcro. There’s plenty of space for it, and its easy enough to access without having to constantly see it while driving.

The National Luna Dual Battery system has been running without issue for the past month, and I fully plan on beating the shit out of it putting it through its paces. To be honest though, I don’t have any plans to drive across Mongolia anytime soon, but knowing that I don’t have to worry about a dead battery stopping me is all I really need.