I think it depends on what you are running.
laptops are really just charging the battery, so a dirty signal isn't a big deal.
TV would be more sensitive.
And the fridge will pull something like 30 Amps per hour DC, so it will work on either inverter, but it will suck your batteries down pretty quick.
I think the Vegas 25.2 has about 40 Amp Hours of usable power for each house battery, so you will only get 2 hours of usable run time at best per battery. If your fridge is running 25% of the time, you will 8 hrs best our of each battery.
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