Apologies, if this question has been asked somewhere before on the site. What I'm trying to figure out is the mathematical relationship, if any, among Shore Power, AC Loads, Battery Charge/Discharge, and PV.
If, for example, the AC Loads are 200 W and I'm not connected to shore power (so zero), the PV is producing 100 W, shouldn't the batteries be discharging at 100 W to make up the difference?
I guess the basic question is should the numbers net out? Roughly?