question

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jakecloss asked

Polarity on bottom of mppt 150/100

I just want to check the polarity of the mc4 on the bottom of my controller. Which mc4 are positive

wiring
15754581637378846703615065352074.jpg (3.7 MiB)
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1 Answer
JohnC avatar image
JohnC answered ·

In your pic, the top ones are the positive.

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