Will a 750 watt inverter power my spare 4.5 cu ft frig when I travel for 6 hrs. It runs at 1.5 amps, start up is 6 amps, but it will already be at correct temperature. I was going to hook it up to spa...
As long as your rv battery is being charged by your vehicle while you travel that inverter should be fine for a "bar fridge". You may not have full batteries when you arrive, but I would imagine you have a powered site to top it up...or you wouldn't have a 110v small fridge along.