Can the EcoFlow DELTA 3 Classic run a 1/2 HP sump pump?
It runs it, but not for a full day of use: the EcoFlow DELTA 3 Classic gives 56 min of running time on a full charge, against the 2 h a day counted for a 1/2 HP sump pump.
Updated
The answer in numbers
Runs it, not a full day
Verdict
56 min
Running time, full charge
870Wh
Usable at 85%
1,725 / 3,600W
Start needed / surge
The three checks
1/2 HP sump pump on its own, with nothing else plugged in, against the published ratings of the EcoFlow DELTA 3 Classic.
| Check | Needs | Station has | Result |
|---|---|---|---|
| Running watts against continuous output | 925 W | 1,800 W | Passes |
| Starting watts against surge rating | 1,725 W | 3,600 W | Passes |
| A full day at 2 h a day | 1,850 Wh | 870 Wh usable | Fails |
How long it runs across models
The appliance class spans a range of models. Running time on a full charge at the low, typical and high figure in the data:
| Case | Running watts | Running time |
|---|---|---|
| Low end of the class | 800 W | 1.1 h |
| Typical | 925 W | 56 min |
| High end of the class | 1,050 W | 50 min |
Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.
Keeping up on solar
At 4 peak sun hours, counting 75% of the panel rating: 200 W of panels bring in about 600 Wh a day, 32% of the 1,850 Wh it uses at 2 h a day. 500 W of panels bring in about 1,500 Wh a day, 81% of the 1,850 Wh it uses at 2 h a day.
Other options
The smallest EcoFlow model in the data that is enough for a full day of a 1/2 HP sump pump is the EcoFlow DELTA 3 Ultra (3,072 Wh). The nearest capacities from any brand:
| Power station | Capacity | Verdict | Running time |
|---|---|---|---|
| EcoFlow DELTA 3 Ultra | 3,072 Wh | Enough | 2.8 h |
| BLUETTI Elite 100 V2 | 1,024 Wh | Runs it, but not long enough | 56 min |
| Anker SOLIX C1000 Gen 2 | 1,024 Wh | Runs it, but not long enough | 56 min |
| DJI Power 1000 | 1,024 Wh | Runs it, but not long enough | 56 min |
The EcoFlow DELTA 3 Classic
Everything the EcoFlow DELTA 3 Classic runs, its recharge times and full specifications
EcoFlow's page for the DELTA 3 Classic (opens in a new tab)
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