Yes exactly. Since it still is measuring a change in current, the inverter will I think shut off on a higher load, although I dont know what load that is now. Seeing the milivolt pattern between the oem and the added shunt seems fairly linear across the tested range of maybe 30%, I am guessing it will shutdown at a 30% higher load than before.
Doing this also affected the bar amp draw display on the panel, it shows less amps being drawn , but it was never very accurate, more of a toy bar graph. It did not affect the low voltage DC bar graph display.
The internal components seemed to me capable with some mods of being a more powerful inverter. Having a threshold of 1500 watts for this design to that was not able to perform to it's potential, is a waste to me. What started this was it shutting down trying to power a 1600 watt microwave load. And I wanted a backup inverter to another one.
I think the worst that would happen is the output fets would blow, I then would use higher amp rated output fets which I have some here.
Or the input fuses would blow. My old battery I t still could not draw more than 150 amps from, so maybe today will test on a battery bank which has upto 450 amps available.
The inverter fan spins at power on, then goes off. And it has yet to heat up enough to even turn on the cooling fan.