EcoFlow DELTA 3
Power station · DELTA. Specs from the manufacturer page (checked ).

The EcoFlow DELTA 3 is a 1024 Wh portable power station with 1800 W output and 3600 W surge. It charges from 0-100% in 56 minutes on 1500 W AC input and uses LiFePO4 cells rated for 4000 cycles to 80% capacity. The page lists 6 AC outlets and a 5-year warranty.
Key features
- 6 AC outlets with 1800 W total output and 3600 W surge
- AC charging at 1500 W, 0-100% in 56 minutes
- Solar input up to 500 W (DC 11V-60V), full charge in 2 hours
- Car charging at 800 W, full charge in 1.3 hours
- Smart Generator charging at 1500 W with auto start/stop (Smart Generator 3000 Dual Fuel)
- USB-C 2 ports at 100 W max, USB-A 2 ports at 18 W max, car port 126 W max
- UPS switchover under 10 ms; noise 30 dB under 600 W
- App control with TOU and storm warning alerts; expandable up to 5 kWh with extra batteries
What it is for
- home backup
- RV
- outdoor use
Specifications
| Capacity | 1024 Wh |
|---|---|
| Continuous output | 1800 W |
| Peak / surge | 3600 W |
| Solar input | 500 W |
| Expandable | Yes |
| Battery chemistry | LiFePO4 |
| Cycle life | 4000 cycles |
| Noise | 30 dB |
| AC charging | 0-100% in 56 minutes |
| Weight | 12.5 kg (27.6 lb) |
| Dimensions | 39.76 × 20.2 × 28.36 cm (15.7 × 8.0 × 11.2 in) |
| Warranty | 5 years |
From the EcoFlow page. Values the manufacturer does not publish are left out.
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 19 h |
| Chest freezer | 100 W (500 start) | yes | 27 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 23 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 14 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 68 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 14 h |
| TV 50" | 75 W | yes | 11 h |
| Sump pump 1/2 HP | 920 W (2150 start) | yes | 0.9 h |
| Well pump 1/2 HP | 880 W (2000 start) | yes | 0.9 h |
| Space heater 1500 W | 1500 W | yes | 0.8 h |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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EcoFlow DELTA 3 comparisons
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All 23 comparisons
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- DELTA 3 vs Yoshino B2000 SST
- DELTA 3 vs Anker SOLIX C1000
- DELTA 3 vs Allpowers P1800
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On our lists
Connection and wiring
We have not linked an official manual for this model yet; see the EcoFlow page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
How long will the EcoFlow DELTA 3 run a refrigerator?
About 19 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the EcoFlow DELTA 3 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 3600 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.