The three checks

1/2 HP sump pump on its own, with nothing else plugged in, against the published ratings of the EcoFlow DELTA Pro 3.

1/2 HP sump pump on the EcoFlow DELTA Pro 3: power checks
CheckNeedsStation hasResult
Running watts against continuous output925 W4,000 WPasses
Starting watts against surge rating1,725 W8,000 WPasses
A full day at 2 h a day1,850 Wh3,482 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 Pro 3, low to high
CaseRunning wattsRunning time
Low end of the class800 W4.4 h
Typical925 W3.8 h
High end of the class1,050 W3.3 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. 2,600 W of panels bring in about 7,800 Wh a day, more than the 1,850 Wh it uses at 2 h a day, so the station keeps up.

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:

The smallest EcoFlow model that is enough, then the stations closest in capacity to the EcoFlow DELTA Pro 3, with a 1/2 HP sump pump
Power stationCapacityVerdictRunning time
EcoFlow DELTA 3 Ultra3,072 WhEnough2.8 h
Anker SOLIX F38003,840 WhEnough3.5 h
Anker SOLIX F3800 Plus3,840 WhEnough3.5 h
Goal Zero Yeti PRO 40003,994 WhEnough3.7 h

The EcoFlow DELTA Pro 3

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

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

Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.