landyacht318 wrote:
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Hook Solar controller right to battery posts, not inverter posts. It will work the other way, but when inverter is on, it can reduce voltage seen by controller.
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Yes, the Voltage will be lower by a teensy due to ~55A flowing through the 4AWG when cooking. However, this can work to your advantage because the controller will think the battery Volts are lower. The result will be that the solar will supply more Amps and in the final analysis, fewer Amps from the battery.
With my 00AWG, I wonder if I have a meter that could even measure the difference. I connect to the inverter terminals to keep the battery's cable connections at a minimum.
In practice, either way will be fine.
HTH;
John