Portable power station
EcoFlow DELTA Pro 3
Every figure below comes from EcoFlow’s own published materials, linked beside it. We do not test products or estimate runtimes.
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Published specifications
| Specification | Value | Source | Status |
|---|---|---|---|
| Stored energy | 4,096 Wh | EcoFlow DELTA Pro 3 (product page) Checked 2026-10-04 |
Verified |
| AC output, continuous | 4,000 W EcoFlow states AC output of up to 4,000 W. |
EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
| AC surge rating | Not published by the manufacturer The surge figure we found applies to two units connected together, not one unit. |
EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Not published |
| Output voltage | 120V / 240V | EcoFlow DELTA Pro 3 (product page) Checked 2026-10-04 |
Verified |
| Maximum AC charging input | Not published by the manufacturer | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Not published |
| AC outlets | Four 120V 20A outlets and one 120V 30A RV outlet (120V mode) | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
| Battery chemistry | LiFePO4 | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
| Lowest charging temperature | 32°F | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
| Lowest operating (discharge) temperature | 14°F | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
| Switchover time (UPS/EPS) | Not published by the manufacturer | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Not published |
| Expandable | Yes, with extra batteries | EcoFlow — DELTA Pro 3 FAQ (EcoFlow blog) Checked 2026-10-04 |
Verified |
“Derived” means we calculated the figure from other published values, as explained in the row. “Not published” means we could not find it in the manufacturer’s materials, so the planner does not rely on it. Spotted something wrong? Tell us.