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I picked up some bare bones solar panels (did not come with positive and negative wires from panel's junction box). I looked on Amazon for the MC4 cables I need, but all I see are MC4 extension cables. I thought I could use those as junction box cables, but it appears that's not the case as the...

Since I have the parts laying around, I figured I'd go ahead and put together a battery backup system. I have a 3000W 12V DC to 120V AC inverter with built-in charger (Xantrex Prosine 3.0) and a automatic transfer switch with built-in 12 circuit essentials/emergency sub-panel (Generac). Is it as...