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 Ultra.

1/2 HP sump pump on the EcoFlow DELTA 3 Ultra: power checks
CheckNeedsStation hasResult
Running watts against continuous output925 W3,600 WPasses
Starting watts against surge rating1,725 W7,200 WPasses
A full day at 2 h a day1,850 Wh2,611 Wh usablePasses

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:

1/2 HP sump pump on the EcoFlow DELTA 3 Ultra, low to high
CaseRunning wattsRunning time
Low end of the class800 W3.3 h
Typical925 W2.8 h
High end of the class1,050 W2.5 h

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. 800 W of panels bring in about 2,400 Wh a day, more than the 1,850 Wh it uses at 2 h a day, so the station keeps up.

Other options

The EcoFlow DELTA 3 Ultra is the smallest EcoFlow model in the data that is enough for a full day of a 1/2 HP sump pump. The nearest capacities from any brand:

The stations closest in capacity to the EcoFlow DELTA 3 Ultra, with a 1/2 HP sump pump
Power stationCapacityVerdictRunning time
Anker SOLIX F30003,072 WhEnough2.8 h
EcoFlow DELTA 3 Ultra Plus3,072 WhEnough2.8 h
Pecron E3600LFP3,072 WhEnough2.8 h

The EcoFlow DELTA 3 Ultra

Everything the EcoFlow DELTA 3 Ultra runs, its recharge times and full specifications

EcoFlow's page for the DELTA 3 Ultra (opens in a new tab)

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