Well you guys are likely the experts. I have a 600 watt system, 30amp charge controller and 7 deep cycle batteries. Everything is set up great and it works well plugged into the grid (I run about 30% of my house on it). I noticed my batteries drain fast when I'm connected to my service panel. So I decided to run the inverter off the load on the charge controller to see how much its drawing. My entertainment system is drawing 25-30amps? That doesn't seem right. Could it be the distance to the system (about 35 feet)? Not sure why its using up so much power? When i use a meter, it shows its using about 6 amps for that outlet strip when on grid power. I'm still in the newbie stages of solar/battery systems. What am I doing wrong?