Spud

@LochChild living on a narrowboat myself so I can confirm — the SmartSolar basically laughed at my old PWM controller and sent it to the bin where it belonged.

Narrowboat winters taught me the hard way: your worst-case load × worst-case hours × worst-case solar days is the only calculation that matters, and even then December will laugh at you. Swap that...

Worth checking your DC breaker hasn't tripped — mine went into thermal cutoff in the caravan when I tried running the kettle and charger simultaneously, absolutely silent about it too.

Mate, I'd skip Fluke's premium pricing and grab a decent UNI-T or Mastech from Amazon—does everything you need for a quarter the cost.

Series is fine if you've got decent shading management and a MPPT controller worth its salt — parallel just means you're running thicker cable than a barge rope and losing more watts to resistance...

Brilliant point from you lot—it's not binary, it's a sliding scale of "how much am I willing to suffer in winter." For me on the narrowboat, off-grid means I can't blame the DNO when my...

On a narrowboat you're basically choosing between "it works until it doesn't" and "it actually works" — split relay will happily cook your leisure batteries if your...