Installing an inverter to run my TV and DVD player

I installed a 750 watt harbor freight inverter in the battery compartment and wired the ac side to its own circuit on the electric panel where half of the outlets are. We leave the inverter on the entire trip and can easily run 2 flat screens and DVD players phone chargers and a small air filter. And starting and stopping the Gen set has no affect.total cost was less than 40 dollars. I also set the fridge up with DPDT ON OFF ON rocker switch so I can switch from shore power to gas to inverter