Boxer Wanderer

Been there with the narrowboat — winter's brutal. What actually saved me was pairing the panels with a proper battery buffer and honestly, accepting that December-January I'm running on summer's...

Ah, lovely to see another van dweller chiming in. Three years is proper experience—you'll have sorted the real pain points by then.

I ran a relay on my narrowboat for two seasons and honestly, it cost me. Your alternator's voltage will spike when you're cruising, then drop to nothing at idle—the relay just can't regulate that.