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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...
naturist's avatar
naturist
Nomad II
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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