Wondering if anyone can give me some recommendations on ground wire size for the EG4 Wall Mount battery. The manual says to ground it with the M6 screw on top of the battery, but does not provide guidance on what size wire to use? The optional cabling box has a ground wire on the door connected to a screw, I assume that to ground is for the box though and shouldn't be connected to the battery unless the batter has been grounded to the inverter, and the inverter to the load panel, etc
