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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, the pigtail with the red band is positive. Would it be the same on these Renogy panels?

Two pics of the pigtails on the Renogy solar panels. Which is positive and which is negative?





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  • naturist's avatar
    naturist
    Nomad
    Jan 07, 2020
    You will note that they have MC4 connectors on them. Those connectors are one male, the other female. It is impossible to connect them wrong because of the MC4 connectors. That is why they are there in the first place. But also, a VOM will confirm they are wired correctly.

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