I have 1 year old set of 4 x 6 volt deep cycle batteries approx total 425 amp capacity. Small loads are running fine but the microwave 1100W line low and 700W continues to shutdown the inverter. From what I can fine online I need to change the Dynamic Cutoff Levels on the app. But what are these setting that I need to change? Or am I on the right track? Thanks in advance.