How long will a EcoFlow DELTA 3 run a refrigerator?
Estimated runtime: 11.2 h – 11.9 h
This estimate uses the EcoFlow DELTA 3's published 1,024 Wh capacity, an assumed 85% inverter/conversion efficiency, and a typical refrigerator draw of 73–78 W.
⚠️ Compressor startup surge is not published in our sources. The EcoFlow DELTA 3 lists 3,600 W surge; most fridges start well within that, but check your model.
The math
1,024 Wh × 0.85 = ~870 usable Wh. ÷ 78 W = 11.2 h; ÷ 73 W = 11.9 h.
Where the appliance wattage comes from
Average draw derived from DOE/EREC annual use of a frost-free 16–18 cu ft refrigerator (642–683 kWh/yr ÷ 8,760 h). Running/defrost nameplate wattage listed as 725 W; compressor startup surge can be higher and is not published.
Sources: web.archive.org, courses.ems.psu.edu
For the most accurate number, check the watts on your appliance's label or measure it with a plug-in meter, then use the calculator.
EcoFlow DELTA 3 specs
| Capacity | 1,024 Wh |
|---|---|
| Rated AC output | 1,800 W |
| Surge (peak) | 3,600 W |
| Battery chemistry | LiFePO4 |
| Estimated usable AC energy | ~870 Wh (at our 85% assumption) |
Source: EcoFlow product page. Manufacturer lists X-Boost up to 2200W.
Check EcoFlow DELTA 3 on EcoFlow's site
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