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Outdoor & Recreation
Campers, Vans & 4WD's
Solar Panels - Information and Questions
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<blockquote data-quote="Simmo" data-source="post: 431477" data-attributes="member: 4105"><p>Hey Bud, the Formula is easy. P=IV Where P is Power, I is current and V is voltage.</p><p>We dont really want the open circuit voltage of the panel, which could be 18v, so we use the rated voltage of the panel, which is 12v.</p><p>Then do a short circuit current test, and that will approximate the wattage.</p><p>So short out the red and black wires, with ya clamp meter on and get 2.5 amps in full sun..</p><p>P= 2.5 x 12 = 31 watts.</p></blockquote><p></p>
[QUOTE="Simmo, post: 431477, member: 4105"] Hey Bud, the Formula is easy. P=IV Where P is Power, I is current and V is voltage. We dont really want the open circuit voltage of the panel, which could be 18v, so we use the rated voltage of the panel, which is 12v. Then do a short circuit current test, and that will approximate the wattage. So short out the red and black wires, with ya clamp meter on and get 2.5 amps in full sun.. P= 2.5 x 12 = 31 watts. [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Solar Panels - Information and Questions
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