Originally Posted by deandec
You will then need to wire your AGS to the new starting battery to make it useful.......
Not sure about that. My AGS (I installed it myself) is wired directly to the gen start switch. When a condition occurs (low house batteries, call for AC if shore power is lost) that triggers the AGS, it merely works as another switch, just as if I was manually pressing the start switch.
The AGS would need to continue to monitor the house batteries and not the added gen start battery.