Power station or gas generator for a fridge?
If the generator would sit indoors or by a window, use a battery instead. Generator exhaust can kill.
Details and sources
These are different machines. A portable fuel generator makes electricity with an engine and exhaust. The power stations in this catalog store watt-hours. Their product descriptions do not describe fuel exhaust. This page does not test either kind of machine.
What CPSC says about generator exhaust
The CPSC: Generators and Engine-Driven Tools page, read November 10, 2026, says carbon monoxide from a generator can kill in minutes. One generator produces as much carbon monoxide as hundreds of cars. Never use a portable generator indoors or in a garage, basement, or shed. Use it outside, well away from windows, doors, vents, or any other opening. CPSC’s companion alert also says to operate it at least 20 feet from the house with the exhaust pointed away, and that opening doors and windows will not make indoor use safe. Have a working carbon monoxide alarm.
That is a safety fact about engines, not a recommendation to buy a generator and not a wiring guide. Do not connect a power station or generator to household wiring unless the equipment is made for that job and a qualified person installs it. This site does not explain how to do that work.
What a battery does not answer
A power station can sit indoors only in the way its own manual allows, with the ventilation that manual requires. Indoor placement does not mean the refrigerator will start, and it does not mean the food stays at a safe temperature. Compare watt-hours on the calculator. For a rental, read the apartment backup page before anyone puts an engine near a window.