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Hi, Hope this hasn´t been answered somewhere already but I couldn´t find it. Currently I´m building a 400W solar power system with 200Ah LiFePO battery (12V). I was wondering what gauge wire I should use for grounding the system to chassis? My system is positioned next to one of the wheel...

I have a problem with connecting my panels in parallel. It´s not about the concept of how to do it, I understand that. My problem is more mechanical. (If that´s the way to put it.) I want to connect them in the pattern that is shown in the attached image. The problem is that the cables are...

This is not purely related to solar power but I´ve run into this building the elctrical system for my van. I have this rocker switch and it has 3 terminals. + appliance ground I was wondering if it is really necessary to ground the switch. It would cost me a lot in extra wire so I would like...