EcoFlow DELTA 2: what it runs in an outage
The DELTA 2 is the middle-of-the-road 1kWh station: enough for a fridge through a night, enough output for a microwave or coffee maker, and — unusually for its size — two ways to add battery later.
Good fit if you…
- want one station for a fridge-plus-essentials outage and might add capacity later
- need to run something power-hungry for a few minutes (1,800W output covers most kitchen appliances)
- want a station two adults can lift (27 lb)
Look elsewhere if you…
- need a full day of fridge plus Wi-Fi and lights without buying an extra battery
- need uninterrupted switchover for a desktop computer — its EPS switch takes up to 30 ms, not 0 ms
- want the most solar input in this class (500W; the R1500 takes 650W)
Estimated runtimes
These come from the same calculation as the planner: our representative appliance figures, efficiency estimated from the load, and a 10% battery reserve. The range runs from our cautious to our optimistic estimate; verdicts use the expected value in between. Your appliances will differ — try your own.
| Load | Runtime | Verdict |
|---|---|---|
| Wi-Fi, lights and phones, 8 hours | about 10–13 h | Covers it |
| Fridge alone, 12 hours | about 9.9–12.9 h | Short — expansion battery fixes it |
| Fridge, Wi-Fi and lights, 12 hours | about 6.1–7.3 h | Short — expansion battery fixes it |
| CPAP with heated humidifier, one night (8 hours) | about 13–19 h | Covers it (estimate — test first) |
| Work-from-home day: Wi-Fi, lights, phone, laptop (8 hours) | about 6.8–8.3 h | Short — expansion battery fixes it |
| CPAP plus fridge, overnight (8 hours) | about 6.6–8.0 h | Short — expansion battery fixes it |
What the numbers mean for you
At 1,024Wh, the DELTA 2 keeps a typical full-size fridge going for about half a day on our estimate — enough to bridge most overnight outages, not a full day. Add Wi-Fi and lights and it falls to roughly 7 hours. That gap is where its main advantage shows: it’s one of the few stations here you can expand, with a choice of two extra batteries. With EcoFlow’s DELTA Max extra battery it reaches 3,040Wh, enough to run a fridge, Wi-Fi and lights for about 20 hours on our numbers.
Its 2,700W surge rating comfortably covers a fridge compressor’s start-up spike. Its 1,800W output means it can briefly run a microwave or kettle, but those drain a 1kWh battery fast — a 1,000W microwave for 10 minutes costs about 190Wh including losses.
Limitations and things to check
- The 30 ms EPS switchover is fine for a fridge or router, but EcoFlow’s manual says it doesn’t support 0 ms; a desktop PC may reboot when the power cuts.
- X-Boost (up to 2,200W) is a reduced-power mode for heaters and kettles, not extra surge capacity.
- EcoFlow’s US product page doesn’t show a spec table; our figures come from EcoFlow’s manual and spec sheet. The newer DELTA 3 line is sold alongside it.
- Surge duration isn’t published.
Specifications
| Battery capacity | 1,024 Wh |
|---|---|
| Running (continuous) output | 1,800 W |
| Surge (start-up) output | 2,700 W |
| AC outlets | 6 |
| Weight | 27 lb (12 kg) |
| Max solar input | 500 W |
| Max AC charging | 1,200 W |
| Backup switchover | EPS auto-switch within 30 ms (not a 0 ms UPS) |
| Expansion | Up to 2,048Wh with a DELTA 2 Extra Battery, or 3,040Wh with a DELTA Max Extra Battery (one extra battery) |
| Battery type | LiFePO4 (LFP) |
| Rated cycle life | 3,000 cycles to 80% capacity |
| Warranty | 5 years |
Boost mode: X-Boost (up to 2,200W in the US manual) runs some resistive appliances above 1,800W at reduced power. It is not surge, and we never use it to pass a surge check.
Sources: EcoFlow DELTA 2 user manual and EcoFlow spec sheet: 1,024Wh, 1,800W continuous, 2,700W surge, 500W solar, 1,200W AC charging. The US product page shows no spec table. Manufacturer page.
Alternatives worth comparing
- Anker SOLIX C1000 — similar size and output, more solar input (600W), one expansion path, 1.4 lb heavier.
- Jackery Explorer 1000 v2 — 3.2 lb lighter and a faster UPS switch, but 1,500W output, 400W solar and no expansion.
- BLUETTI AC180 — about 12% more battery for about 8 lb more, but no expansion.
The link to EcoFlow is an ordinary link — we have no affiliate relationship with EcoFlow. No price is shown because prices change often; check the manufacturer’s page.