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Green Renewable Energy Forum
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Solar Panel Issue - Maybe Faulty Diode?
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<blockquote data-quote="binky" data-source="post: 357215" data-attributes="member: 490"><p>'stalled' condition versus 'in use' condition. When testing panels it is effectively a short circuit which allows a higher current to flow because there is no load, where as when driving through the charge controller it is under load. from Ohms law, V=IR assuming voltage remains constant, the resistance R has increased, hence current I decreases.</p><p></p><p>You are also assuming the charge controller display is accurate, I would think of it as more of an 'indication or performance'.</p></blockquote><p></p>
[QUOTE="binky, post: 357215, member: 490"] 'stalled' condition versus 'in use' condition. When testing panels it is effectively a short circuit which allows a higher current to flow because there is no load, where as when driving through the charge controller it is under load. from Ohms law, V=IR assuming voltage remains constant, the resistance R has increased, hence current I decreases. You are also assuming the charge controller display is accurate, I would think of it as more of an 'indication or performance'. [/QUOTE]
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Solar Panel Issue - Maybe Faulty Diode?
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