Four Wheel Camper Electrical Basics and Switching to Lithium!

[lonepinetech]

For comparison, I have a National Luna DC Powerpack with a 100ah Battleborn. The DCDC charger is rated at 25 amps. NL provides a 20 foot 6mm (between 5 and 6 awg) cable to run from the starter battery into the box where the DCDC lives. To which I added another 6 feet of 6awg due to my run distance. I have a Victron smart shunt on the battery and can see that it does get the full 25 amps. No heating of the cable. 4 awg would certainly be great, though heavier and more expensive. 6 awg would likely be just fine and easier to work with. Of course, depends on your setup and the distances. YMMV!

You have to make sure the plug is also rated for the increase in amps.

 

[dstefan]

You have to make sure the plug is also rated for the increase in amps.

Quite true. The NL DC pack has 50amp Anderson plugs for input and output and I use 50 amp plugs everywhere in my charging and output to the camper switchbox with the exception of the smaller 15/30/45 amp plug for direct wiring into the battery (with inline fuse and bypassing all of NL’s electrics) using ARB’s 10 awg fridge loom and locking plug so my fridge is always wired in and the power can’t be inadvertently disconnected unless I physically disconnect the wiring at the Anderson plug (which is also pinned together).