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Originally Posted by Zugbug I am leaning toward the 80 watt stand alone. With this I don't have to worry about parking in the sun. |
what? 80w is minimal to start with and not getting good direct sunlight will make it suitable for barely more than just battery maintenance.
Twinkie hit the nail on the head: where, when, and how you need electrical power are the big questions.
A good rule of thumb is that each 100 AH battery needs 100 watts of solar panel to keep it charged in light duty situations where there is good sunlight. A lot of trailers these days have 2 batteries so need 200 watts to start talking about a solar system of good utility.