I confess, that’s the extent of my knowledge on the subject. I love the concept of solar power, and I wish you all the best if you’re making use of it. But I have to refer you to an expert for the relevant details.
Jeffrey Yago has written an article which appears in the May/June 2015 “Backwoods Home Magazine” (Issue #153). Below is an exerpt with a link to the full article.
Solar charge controllers
myths, hype, and facts
By Jeffrey Yago, P.E., CEM
Most people with a basic understanding of solar power are aware they need a solar module and a storage battery to power an electrical device using the sun. Anyone facing a long car trip with a teenager also knows an inverter is a device that can produce 120-volt AC power when plugged into the car’s 12-volt DC utility outlet — which will power video games and DVD players.
However, while the function of these electrical components may be understood, many people planning do-it-yourself solar projects do not understand why they need a quality solar charge controller. Many view a solar charge controller as just a device with limited function to connect a solar module to the battery, so they buy the cheapest charge controller they can find.
Read the whole article here:
Excerpt used with permission of Backwoods Home Magazine.
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