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EcoFlow Delta 2
#14 of 20 in medium · #25 of 56 overall · all EcoFlow models
3.4
The benchmark 1kWh unit: 1800W output, six AC outlets, expandable to 3kWh.
1,024 Whcapacity
1,800 Wcontinuous output
LiFePO43,000 cycles
27.0 lbweight
$699street price, being verified
Runs a 500 W load about 1.7 h$683 per kWh of capacityFull AC recharge in about 1.0 hExpands to 3,040 Wh
Ratings
Includes independent measurements from AUTO BILD / COMPUTER BILD, CleanTechnica, Outdoor Life, StorageReview.
Each rating places this unit among the others on a 0.5–5 scale, within its size class for the measures that scale with size and across the whole catalog for the rest. Weighted together they give the overall 3.4. Formula and weights.
Specifications
- Capacity
- 1,024 Wh
- Max expanded
- 3,040 Wh
- AC output
- 1,800 W continuous
- Surge
- 2,700 W
- Chemistry
- LiFePO4
- Cycle rating
- 3,000
- Weight
- 27.0 lb
- AC recharge
- 1,200 W
- Solar input
- 500 W
- UPS switchover
- 30 ms
- AC outlets
- 6
- USB-C PD max
- 100 W
- 240V output
- No
- App
- Yes
- Price per kWh
- $683
- Released
- 2022
Independent measurements
| Metric | Value | Source |
|---|---|---|
| Usable capacity at a trickle load (shown, not scored) ~34W grow-light load; 690 Wh delivered of 1024 rated | 67 % | Outdoor Life 2025-05 |
| Usable capacity, % of rated ~380W dehumidifier load; 900 Wh delivered of 1024 rated | 88 % | Outdoor Life 2025-05 |
| AC recharge time Report card gives 1 h 15 min wall recharge (summary table rounds to 1.3 h) | 75 min | Outdoor Life 2025-05 |
| Sustained output Induction cooktop drawing ~1500W held nearly 45 min; unit pulled ~1170W from the wall while charging | 1500 W | CleanTechnica 2022-10 |
| UPS switchover Approximate; idle EPYC workstation load logged with a Quarch mains analyzer; ~2 cycles of rough output after cutover | 38.5 ms | StorageReview 2023-10 |
| Usable capacity, % of rated Incandescent-bulb constant load (wattage not stated); 881 Wh delivered of 1024 rated (table unit typo Wh/kWh); multi-model table matched by position - verify | 86 % | AUTO BILD / COMPUTER BILD |
| AC recharge time Empty to full on a 230V socket at up to 1214W input; multi-model table matched by position - verify | 92 min | AUTO BILD / COMPUTER BILD |
| Noise Peak during operation; load and distance not stated; multi-model table matched by position - verify | 56 dBA | AUTO BILD / COMPUTER BILD |
How it compares with its neighbors
| # | Model | Wh | AC W | Chem. | Cycles | lb | AC in W | Solar W | $/kWh | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | UGREEN PowerRoam 1200 | 1,024 | 1,200 | LiFePO4 | 3,000 | 25.6 | 1,000 | 200 | 585 | 3.5 |
| 12 | Bluetti AC70 | 768 | 1,000 | LiFePO4 | 3,000 | 22.5 | 850 | 500 | 585 | 3.5 |
| 13 | Anker SOLIX C800 Plus | 768 | 1,200 | LiFePO4 | 3,000 | 24.4 | 1,000 | 300 | 585 | 3.4 |
| 14 | EcoFlow Delta 2 | 1,024 | 1,800 | LiFePO4 | 3,000 | 27.0 | 1,200 | 500 | 683 | 3.4 |
| 15 | Jackery Explorer 1000 Plus | 1,264 | 2,000 | LiFePO4 | 4,000 | 32.0 | 800 | 800 | 672 | 3.4 |
| 16 | EcoFlow River 2 Pro | 768 | 800 | LiFePO4 | 3,000 | 17.2 | 940 | 220 | 650 | 3.3 |
| 17 | EcoFlow River 2 Max | 512 | 500 | LiFePO4 | 3,000 | 13.4 | 660 | 220 | 682 | 3.1 |