EcoFlow DELTA 2: runtime & specs
1,024 Wh · 1,800 W continuous AC · 500 W max solar input · LFP (LiFePO4). Specs below are the manufacturer's published figures — continuous and surge watts are separate numbers here, because they are separate numbers in reality.
Manufacturer specifications
| Capacity | 1,024 Wh |
|---|---|
| Maximum capacity with expansion | 3,040 Wh |
| AC output (continuous) | 1,800 W |
| AC output (surge) | 2,700 W |
| X-Boost | 2,200 W — resistive loads only; not used in our start check or sizing math |
| Maximum solar input | 500 W |
| Solar input voltage range | 11-60V |
| Battery chemistry | LFP (LiFePO4) |
| Cycle life | 3,000 cycles to 80% capacity |
| AC charging input (max) | 1,200 W |
| Weight | 27 lbs |
Source: manufacturer spec sheet via an authorized dealer · pulled 2026-10-19. Expansion: 1 x DELTA 2 Extra Battery (to 2048Wh) or 1 x DELTA Max Extra Battery (to 3040Wh). If a row says "not published", the manufacturer doesn't publish that figure in the source we retrieved — we leave it blank rather than guess.
View on the manufacturer's site
What it runs, and for how long
Estimates use our published formula — capacity × 0.85 ÷ load, duty cycle applied to cycling loads, and a start check against the surge rating (methodology). Loads that fail the start check are marked, not given a fake runtime.
| Load | Estimated runtime |
|---|
Try your own load
EcoFlow DELTA 2 questions
How long will the EcoFlow DELTA 2 run a refrigerator?
No — not a full-size fridge by Generac's worksheet figures. The fridge needs 2,900 W at compressor start, above this model's 2,700 W surge rating, so the station would trip when the compressor kicks on. Smaller loads are fine.
How long will it run a CPAP?
About 21.8 hours at 40 W — a typical CPAP without a heated humidifier — or roughly 2.7 nights at 8 hours a night. With a heated humidifier (~90 W) expect about 9.7 hours. That's device runtime math only; see the CPAP calculator for your device's actual wattage.
How long does it take to recharge from solar?
With 400 W of panels, the EcoFlow DELTA 2 needs about 3.3 hours of full sun for a full charge after the 0.78 real-world derate. Try other panel sizes in the solar charging calculator.
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