Good fit
camping, router and laptop backup, CPAP planning, and short fridge outages.
EcoFlow DELTA 3 Classic: Capacity, Output, Runtime & Price
Data-based guide to the EcoFlow DELTA 3 Classic: 1,024Wh capacity, 1,800W output, estimated runtime, price, and best use cases.
Core specifications
Reference data checked November 12, 2026. Verify current price and availability with the manufacturer.
| Capacity | 1,024 Wh |
|---|---|
| Continuous output | 1,800 W |
| Surge output | 3,600 W |
| Battery | LiFePO4 |
| Reference price | Check price |
| Availability | Check |
| Weight | Not listed |
| Best fit | camping, router and laptop backup, CPAP planning, and short fridge outages |
Estimated runtime
Uses 85% usable capacity and typical appliance duty cycles. Actual results vary.
| Load | Typical draw | Estimate |
|---|---|---|
| Refrigerator | 200 W | About 12.4 hours |
| CPAP | 60 W | About 14.5 hours |
| TV | 100 W | About 8.7 hours |
| Microwave | 1,200 W | About 0.7 hours |
| Space heater | 1,500 W | About 0.6 hours |
Surge check: a station can have enough capacity but still fail to start a compressor or motor. Compare the appliance’s startup watts with the station’s surge rating.
Where this model fits
This is a data-based fit summary, not a hands-on review. For medical devices, confirm manufacturer guidance and keep a backup plan.
Check before buying
Continuous watts, startup surge, outlet types, weight, and whether the price includes solar panels or expansion batteries.
Data status
1800W rated / 3600W surge.
Questions to ask
How long will it run a refrigerator?
About 12.4 hours is the planning estimate for a 200W refrigerator with a 35% duty cycle.
Can it run a CPAP?
About 14.5 hours is the estimate without a heated humidifier. CPAP is not a life-support recommendation.
Is it good for home backup?
It is a candidate if its capacity and output cover your essential loads. Add 20–30% reserve and verify startup surge.
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