Model guide · EcoFlow
EcoFlow DELTA 3 Plus: what can it run?
A 1,024Wh portable power station with a 1,800W AC inverter. It can start a full-size fridge and run one for an estimated 9.2h–15h.
Estimated AC runtime by device
Ranges use the low and high watt loads in our device data, from a full charge. They are planning estimates, not measured results for this model.
| Device | Load while running | Estimated runtime |
|---|---|---|
| Wi-Fi router | 8–20W | 32h–59h |
| Laptop, charging and active | 30–90W | 9.0h–24h |
| Full-size fridge | 150–250W · 35% duty cycle | 9.2h–15h |
For the fridge, the 1,200W startup assumption fits within this unit's 3,600W surge rating. Real fridge demand and cycling vary. A router may run longer from a compatible DC output, which this AC table does not model.
The specs that matter
- Battery: 1,024Wh LiFePO4, with an estimated 870Wh usable through AC at a moderate load, before idle draw.
- AC output: 1,800W continuous and 3,600W surge. Check the startup draw of motor loads.
- Weight: 27.6 lb.
- Cycle claim: EcoFlow states 4,000 cycles to at least 80% capacity. That is a battery-life claim, not a runtime promise.
On Sep 25, 2026, EcoFlow listed a transfer time under 10 ms for its backup function. Test your actual router, PC or NAS through a mains-loss simulation before relying on it for uninterrupted operation.
Where the estimate can miss
This model has no published AC idle-draw measurement, so the calculation uses 8W (est.). Idle draw matters most for a small load such as a router. Inverter efficiency is our class default. Temperature, battery age, output mode and the actual device load can all move the result.
The stated surge rating tells you what the inverter is designed to accept. It does not measure your fridge's startup spike. For essential equipment, measure the load and run a full-duration test.
Nearest models by capacity
The closest smaller and larger models with a guide on this site. Fridge estimates use the same 150–250W load and 1,200W startup assumption as the runtime table on this page.
| Model | Rated capacity | AC output | Full-size fridge |
|---|---|---|---|
| Goal Zero Yeti 700 | 677Wh | 600W | Surge or output limit |
| Bluetti AC70 | 768Wh | 1,000W | 6.9h–11h |
| Anker SOLIX C1000 Gen 2 | 1,024Wh | 2,000W | 8.8h–14h |
| Anker SOLIX C1000 | 1,056Wh | 1,800W | 9.5h–15h |
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