Solar Panel positive/negative wire?
I can't remember and my google/owners manual search wasn't productive lol... Is there a dedicated positive/negative wire on a solar panel or does it not matter how the wires go into the MPPT? Th...
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Yes it matters. They should be marked, but if not, put your multi-meter on voltage across the two wires with the panel facing the sun so there is some voltage.
If you have pos to pos, the meter display will say, eg 34.2, but if you have neg to pos, the meter display will say - (minus) 34.2. So now you know which wire is which, put some red sticky tape on the panel's pos wire.
If you have pos to pos, the meter display will say, eg 34.2, but if you have neg to pos, the meter display will say - (minus) 34.2. So now you know which wire is which, put some red sticky tape on the panel's pos wire.
