How long will a BLUETTI AC70 run a refrigerator?
Estimated runtime: 8.4 h – 8.9 h
This estimate uses the BLUETTI AC70's published 768 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 BLUETTI AC70 lists 1,500 W surge; most fridges start well within that, but check your model.
The math
768 Wh × 0.85 = ~653 usable Wh. ÷ 78 W = 8.4 h; ÷ 73 W = 8.9 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.
BLUETTI AC70 specs
| Capacity | 768 Wh |
|---|---|
| Rated AC output | 1,000 W |
| Surge (peak) | 1,500 W |
| Battery chemistry | LiFePO4 |
| Estimated usable AC energy | ~653 Wh (at our 85% assumption) |
Source: BLUETTI product page. Manufacturer lists Power Lifting Mode up to 2000W for resistive heating loads.
Check BLUETTI AC70 on BLUETTI's site
Other appliances on this station: Laptop · Flat-screen TV · Ceiling fan · Microwave oven · Coffee maker