A fridge needs low average energy but enough inverter strength for compressor startup. Compare portable power stations by runtime, surge and practical backup use.
For a fridge, do not choose only by headline capacity. Check continuous output, startup surge tolerance, usable watt-hours and how many hours you need the fridge protected.
Small fridges often run at low average wattage but start with a short compressor surge.
For overnight backup, look at usable energy, not only the number printed on the box.
For hot kitchens, commercial fridges or freezers, move one model class higher.
This guide is now connected to current catalogue data. The panel below shows suitable products using partner specifications and current feed prices, while runtime and value metrics are calculated by Cavetechia.