The three checks

Chest freezer on its own, with nothing else plugged in, against the published ratings of the EcoFlow DELTA 3 Ultra.

Chest freezer on the EcoFlow DELTA 3 Ultra: power checks
CheckNeedsStation hasResult
Running watts against continuous output300 W3,600 WPasses
Starting watts against surge rating750 W7,200 WPasses
A full day at 24 h a day800 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:

Chest freezer on the EcoFlow DELTA 3 Ultra, low to high
CaseEnergy a dayRunning time
Low end of the class0.55 kWh a day4.7 days
Typical0.8 kWh a day3.3 days
High end of the class1.26 kWh a day2.1 days

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, 75% of the 800 Wh it uses at 24 h a day. 800 W of panels bring in about 2,400 Wh a day, more than the 800 Wh it uses at 24 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 chest freezer is the EcoFlow DELTA 3 Classic (1,024 Wh). The nearest capacities from any brand:

The smallest EcoFlow model that is enough, then the stations closest in capacity to the EcoFlow DELTA 3 Ultra, with a chest freezer
Power stationCapacityVerdictRunning time
EcoFlow DELTA 3 Classic1,024 WhEnough26.1 h
Anker SOLIX F30003,072 WhEnough3.3 days
EcoFlow DELTA 3 Ultra Plus3,072 WhEnough3.3 days
Pecron E3600LFP3,072 WhEnough3.3 days

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)

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