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is it necessary to install diode in solar panel? can't s.panel work without installing diode? Answered

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steveastrouk (author)2012-12-25

It will "work", but if its feeding a battery, and the battery volts exceeds the panel volts, the panel will short the battery. At low voltages, the diode is a significant voltage drop, so use a relay or synchronous rectifier instead,

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