Thanks for the input all. I do feel the need to say one thing though about larger wire sizes that I keep seeing here as I read more an more about my future camper. While using larger wire sizes is obviously not a problem (other than expense), unless I'm missing something, I don't think using them will generally give you a "better" charge. Quicker yes, but either will still get to the same voltage level. Even the smallest wire with higher resistance will still flow current if the voltage potential is different between the source and the depleted battery. Any current flow will provide charging for the battery, raising it's voltage. As the voltage gets closer between the two, the current will get less, and therefor the voltage drop due to wire resistance gets less. At some point, they will equalize as long as the there isn't a large continuous drain on the camper battery. Also, if there is smaller wire at any point along the path, you need to fuse the line for the that wire rating. Being able to through 50+ amps into a camper battery isn't necessarily a good thing either. Given the choice, it's better from a battery health perspective to charge a battery slower as long as you're still getting a full charge by the time you stop again.
Don
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