KeithR
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KeithR got a reaction from Guy P in GALVANIC CORROSION/ELECTROLYSIS - PARALLEL AND SERIES CONNECTIONS OF PANELSThe relative area of the two metals makes a difference. An aluminium frame (large area) with S/S nuts and bolts (small Area) will be far less of a risk than the other way around. But as said above, coat it to keep the surfaces at the point of contact dry (i.e. no electrolyte) and it should be OK.
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KeithR got a reaction from Nexuss in Sunsynk 8kw High Pitched Noise - beware!This is all above my head, but this link ( https://www.portablesolarexpert.com/how-to-eliminate-inverter-noise/ ) says it could just be size of battery cables.
They call themselves "experts" so ......