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EcoFlow Delta 2

EcoFlow Delta 2

#13 of 20 in medium · #22 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 CleanTechnica, Outdoor Life.

Value25% of the score
1.5
Power output15% of the score
3.0
Battery longevity15% of the score
4.5
Recharge speed15% of the score
4.0
Portability10% of the score
2.5
Features10% of the score
3.0
Tested capacity10% of the score
3.0

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

MetricValueSource
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 minOutdoor Life
2025-05
Sustained output
Induction cooktop drawing ~1500W held nearly 45 min; unit pulled ~1170W from the wall while charging
1500 WCleanTechnica
2022-10

How it compares with its neighbors

#ModelWhAC WChem.CycleslbAC in WSolar W$/kWhScore
10DJI Power 10001,0242,200LiFePO44,00028.71,2004006833.4
11Bluetti AC707681,000LiFePO43,00022.58505005853.4
12Anker SOLIX C800 Plus7681,200LiFePO43,00024.41,0003005853.4
13EcoFlow Delta 21,0241,800LiFePO43,00027.01,2005006833.4
14UGREEN PowerRoam 12001,0241,200LiFePO43,00025.61,0002005853.3
15Jackery Explorer 1000 Plus1,2642,000LiFePO44,00032.08008006723.3
16EcoFlow River 2 Pro768800LiFePO43,00017.29402206503.2