The DELTA 3000 Gen4 is EcoFlow's fixed-capacity 3kWh station: 3,072Wh, 3,600W output, and a 10 ms UPS switchover, with no expansion batteries.
3,072Wh capacity · 3,600W continuous output · 57.32 lbs
Calculated runtimes
Planning estimates calculated from the manufacturer’s rated capacity — not measured results. We count 85% of rated capacity as usable, a full-size fridge at 1,500Wh per day, and a CPAP at 480Wh per night.
| Usable capacity (85%) | 2,611 Wh |
|---|---|
| Full-size fridge runtime | 1.7 days |
| CPAP runtime | 5.4 nights |
| Cost per watt-hour | $0.553 |
Specifications
| Manufacturer | EcoFlow |
|---|---|
| Model | EcoFlow DELTA 3000 Gen4 |
| Capacity | 3,072 Wh |
| AC output (continuous) | 3,600 W |
| Surge / peak output | 7,200 W |
| Weight | 57.32 lbs |
| Max solar input | 1,000 W |
| UPS / EPS switchover | ≤ 10 ms |
| Expandable to | No — fixed capacity |
| List price | $1,699 |
| Price checked | November 11, 2026 |
Compare with similar stations
Closest in capacity: BLUETTI Elite 300 (3,014.4Wh) · BLUETTI Apex 300 (2,764.8Wh) · BLUETTI Apex 200 (2,560Wh). Or see all 17 stations in the portable power station comparison chart.
Common questions
How long will the EcoFlow DELTA 3000 Gen4 run a full-size fridge?
About 1.7 days on a full charge, using our planning figures (85% of rated capacity usable, fridge at 1,500Wh per day). Real runtime depends on the fridge’s duty cycle and ambient temperature.
How many nights will it run a CPAP?
About 5.4 nights at 480Wh per night (60W for 8 hours, humidifier on). Turning the humidifier and heated tube off stretches that considerably.
Can its capacity be expanded?
No — the EcoFlow DELTA 3000 Gen4 is a fixed-capacity design at 3,072Wh. If you expect to outgrow it, look at the expandable models in the comparison chart.
Does it work as a UPS?
Its published switchover is ≤ 10 ms, fast enough for most electronics to ride through an outage without rebooting.
Run your own numbers: the power station size calculator, the refrigerator runtime calculator, and the CPAP calculator all include this station where applicable.
Specifications are the manufacturer’s published figures, checked November 11, 2026. Runtime figures are calculated planning estimates, not measured results. GadgetPreview may earn a commission from qualifying purchases made through links on this page.