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crcr's avatar
crcr
Explorer
Jan 07, 2020

Solar Panel, Unmarked Pigtails, which is Positive, Negative?

I bought 5 solar panels recently, the pigtails on the two HQST solar panels are marked as to positive and negative, but the pigtails on the three Renogy 100w panels are not marked. On the HQST panels...
BFL13's avatar
BFL13
Explorer II
Jan 09, 2020
crcr wrote:
Thanks to Everyone for your prompt responses! Much appreciated. I will take the panels into the sun today and use a volt meter to verify that the MC4 connector with the red ring is positive.


The OP must have got sun-stroke and zapped himself as well, or we would have heard back by now how that went. :)

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