The Delta 2 is EcoFlow's 1kWh-class all-rounder: 1,800W of continuous output from a 1,024Wh battery, expandable to 3,072Wh with extra batteries. EcoFlow has discontinued it in its US store, so current pricing comes from third-party sellers.
1,024Wh capacity · 1,800W continuous output · 27 lbs
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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%) | 870 Wh |
|---|---|
| Full-size fridge runtime | 0.6 days |
| CPAP runtime | 1.8 nights |
| Cost per watt-hour | — |
Specifications
| Manufacturer | EcoFlow |
|---|---|
| Model | EcoFlow Delta 2 |
| Capacity | 1,024 Wh |
| AC output (continuous) | 1,800 W |
| Surge / peak output | 2,700 W |
| Weight | 27 lbs |
| Max solar input | 500 W |
| UPS / EPS switchover | ≤ 30 ms |
| Expandable to | 3,072 Wh |
| List price | — (discontinued in the US store) |
| Price checked | November 11, 2026 |
Compare with similar stations
Closest in capacity: BLUETTI Elite 100 V2 (1,024Wh) · Goal Zero Yeti 1000 (6th Gen) (998.4Wh) · Anker Solix C1000 (1,056Wh). Or see all 17 stations in the portable power station comparison chart.
Common questions
How long will the EcoFlow Delta 2 run a full-size fridge?
About 0.6 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 1.8 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?
Yes — with the manufacturer’s extra batteries it grows from 1,024Wh to 3,072Wh.
Does it work as a UPS?
Its published switchover is ≤ 30 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.