I just had a decent size solar installed in my camper. Multi plus II, 4 Rich solar 200w panels, cerbo gx, 500a smart shunt, 150/100 charge controller. And 2 Battle Born Game changer 270ah batteries. I'm not sure the installer configured everything correctly. It had a few querks the first night, he connected a laptop and changed settings but wouldn't tell me what? While there I went from One Game changer to 2. This equals 540ah in Lifepo battery capacity . The smart shunt was still set at 270AH. I bumped it up to 540. Is this correct? I have to get the dongel to get into the Inverter to double check his work. I don't think he even updated the Firmware on the Inverter because it was all old on the equipment I could check through the Cerbo GX and I had to update it myself. Any suggestions on what to check on a new install when I get the dongle ? Im not going to change anything I don't understand yet. After $15000.00 I would have expected more guidance post sale but it is what it is.