I’ve had infrastructure problems and transport troubles for most of this year, and one thing I’ve wanted to do has had to hang fire since some time in April.
I replaced my main charge controller almost exactly three months ago, and the improvement was so palpable that I vowed to immediately go that route for the rooftop panels as well. They are and always have been on separate controllers for redundancy.

Also, when I set up the ground mount nine years ago those panels had a circuit breaker which has occasionally proven very useful. The roof panels, which went up in 2012, never did and sometimes it’s been an annoyance. So when I bought this second smaller controller I also got a little circuit breaker. So next time I have to take the circuit apart, no arky sparky. I hate the arky sparky.
















































Arky sparky much too costly, sees the face go chalky, makes one go potty.
Arky sparky is better than smoky wokey. Unless you provide the ground.
Arky Sparky could be training Tobie for thunderstorms, if it is sufficiently sparky…
One of the first things I learned when living off 12 volts was to put batter disconnect switches everywhere. Real solar these days is more likely to be 48 volts, and that is a bit more than arky sparky we got your attention.
The other thing I learned was to keep the little red rubber guards on all the positive terminals, but that is story for another time.
Zendo: “Never bring a wrench to a battery farm.”
The difference in performance over a PWM controller is that noticeable, eh? I believe that I will have to get one of these for my RV and fall camping.
Steve, Truer words were never spoken
Will you update your book for modern times?