Jerry, Inverters are good. I have a 2500w inverter with 4 heavy duty six volt Golf Cart Batteries. They run a full size fridge, microwave, TV, VCR, coffee pot (a carafe type that is on only long enough to perk the pot, some lights and a couple of outlets. I have used the inverter for up to 15 hours before recharging. Our boat is a Gulfstar 44 and the inverter and batteries are not connected to my engine starting or house batteries. All are separate, so if the inverter or batteries die, I can still run everything off the genset and also run the boat. My next plan (if I can figure out how to do it) is to install a larger alternator on one engine so I can run the inverter, and also charge the inverter's batteries while the engine is running. That way when we pull into the anchorage after running the inverter all day while cruising, the inverter batteries are fully charged. Any questions, email me. Mike in Knoxville M/V Irish Ayes