How long will an EcoFlow RIVER 2 Pro run a refrigerator?

Will an EcoFlow RIVER 2 Pro run a fridge, and for how long?

No — on paper it can't start a typical fridge. It depends on the fridge, but with the standard load our calculator uses (150 W running plus 2,200 W of compressor starting watts = 2,350 W at start), the start draw exceeds this model's 1,600 W surge rating, so the station would trip when the compressor kicks on. We show no runtime, because an honest "can't start it" beats a fake number of hours.

✕ Can't start that load: compressor start draw 2,350 W exceeds the 1,600 W surge rating. No runtime is shown.

The running draw alone (150 W) is within this model's continuous rating (800 W); the failure is purely the split-second start spike. A fridge with a soft-start device, or a smaller unit with a lower start draw, changes the answer — run your fridge's real label numbers in the fridge runtime calculator.

EcoFlow RIVER 2 Pro specifications (manufacturer)

Capacity	768 Wh
Maximum capacity with expansion	—
AC output (continuous)	800 W
AC output (surge)	1,600 W
Maximum solar input	220 W
Battery chemistry	LFP (LiFePO4)
Cycle life	3,000 cycles to 80% capacity
Weight	18.2 lbs

Source: manufacturer product page · pulled 2026-10-19. Data as of Oct 19, 2026. If a figure is not published in that source, we show a dash rather than estimate it.

Load assumptions, graded: fridge running draw 150 W — the default in our fridge calculator, typical of a modern fridge while its compressor runs (check the label inside yours). Compressor duty cycle 40% — INFERRED, a WattLong planning assumption. Additional starting watts 2,200 W — Generac/Lowe's sizing worksheet, REPORTED (Generac's manual chart says 1,600 W; we use the higher figure). Runtime = capacity × 0.85 ÷ (150 W × 40%); the 0.85 factor is Bluetti's published formula factor, REPORTED. Base battery only — expansion batteries raise the hours in proportion. Generac's worksheet also lists a conservative 700 W sizing figure for older/larger fridges; sizing with it under-promises, which is the safe direction. Full methodology: how we calculate.

Food-safety note: a fridge keeps food safe for only a limited time without power, and runtime estimates are estimates. Follow USDA/FDA guidance on perishable food during outages.

More on this model: the models index · compare all 30 models in the fridge outage ranking · run your own fridge's numbers in the fridge runtime calculator.

WattLong is reader-supported. Some links on this site are affiliate links: if you buy through them, we may earn a commission at no extra cost to you. See our affiliate disclosure. All results are estimates — verify with the manufacturer and a licensed electrician before relying on them.