EcoFlow DELTA Pro Portable Power Station: Specs, Runtime & What It Can…

What it can run, and for how long

A power station is a battery with an inverter: it stores energy as watt-hours (Wh) and delivers it as AC watts (W). The EcoFlow DELTA Pro Portable Power Station stores 3,600 Wh, of which about 3,060 Wh reaches your appliances after losses, and its inverter limits the load to 3,600 W at a time.

Appliances this unit can run, with estimated runtime on a full charge
Appliance (typical)	Running / starting watts	Can it run it?	Runtime on a full charge
Refrigerator (modern, about 18–22 cu ft)	150 W / 600 W start	Yes	2.1 days	18%
Chest freezer (about 7 cu ft)	100 W / 400 W start	Yes	3.6 days	31%
Sump pump (1/3 hp)	800 W / 1,500 W start	Yes	25.5 h	9%
Well pump (1/2 hp)	1,000 W / 2,100 W start	Yes	15.3 h	6%
Gas furnace blower	750 W / 1,500 W start	Yes	8.2 h	3%
Window air conditioner (5,000–8,000 BTU)	600 W / 1,800 W start	Yes	8.5 h	3%
CPAP with heated humidifier	70 W	Yes	43.7 h	16%
Home oxygen concentrator	300 W	Yes	10.2 h	4%
Wi-Fi router and modem	25 W	Yes	5.1 days	44%
LED television (55 in)	100 W	Yes	30.6 h	11%
LED lighting (10 bulbs)	100 W	Yes	30.6 h	11%
Laptop and charger	60 W	Yes	2.1 days	18%
Phones and tablets charging (4)	40 W	Yes	3.2 days	28%
Ceiling or box fan	75 W / 150 W start	Yes	40.8 h	15%
Microwave oven (1,000 W cooking)	1,500 W	Yes	20.4 h	7%
Coffee maker	900 W	Yes	34.0 h	12%
Garage door opener (1/2 hp)	550 W / 1,100 W start	Yes	11.6 days	100%
Washing machine	500 W / 1,300 W start	Yes	15.3 h	6%
Electric space heater (1,500 W)	1,500 W	Yes	2.0 h	2%
Central air conditioner (3-ton)	3,500 W / 10,500 W start	No	—

Wattstanding calculationWattstanding calculation — runtime = capacity (Wh) × 85% ÷ (running watts × duty cycle). The 85% covers inverter and conversion losses; duty cycle is the share of time the appliance actually draws power. Appliance wattages are typical planning values, not measurements — read the nameplate on your own appliance. Real runtime also depends on temperature, battery age and the maker's inverter efficiency.

Outage scenarios
Scenario	Running watts	Starting watts needed	Average draw	Fits	Estimated runtime
Essentials: refrigerator, router, lights, phones	315 W	765 W	225 W	Fits	13.6 h
Essentials + sump pump	1,115 W	1,815 W	345 W	Fits	8.9 h
Essentials + furnace blower + TV	1,165 W	1,915 W	700 W	Fits	4.4 h
Essentials + window air conditioner	915 W	2,115 W	585 W	Fits	5.2 h

Practical noteCooling appliances cycle on and off, so a refrigerator draws far less than its running watts over a day, but each start needs a brief surge. If a load's starting watts exceed the maker's surge rating, the inverter can shut down.

Recharging

Recharge time depends on the source. Solar numbers below are our calculation for the panel wattage shown, assuming 75% real-world output and the approximate annual-average peak sun hours for each region; winter and cloud cover cut them sharply.

Days of sun to refill from empty
Panel total	Basis	Florida and the Gulf Coast	Texas	California
100 W	—	9.2 sunny days	9.6 sunny days	8.7 sunny days
200 W	—	4.6 sunny days	4.8 sunny days	4.4 sunny days
400 W	—	2.3 sunny days	2.4 sunny days	2.2 sunny days

solar input up to 1,600 W (as stated)
AC wall charging up to 1,800 W (as stated) — about 2.0 h from empty at that rate before losses

See the solar recharge calculator for your own panel size and sun hours.

Connecting it to a home

You can plug appliances straight into the unit's outlets. Powering a home's circuits is different: it needs a properly rated transfer switch or the maker's home-integration hardware, installed by a licensed electrician.

SafetyNever plug a generator or battery system into a wall outlet to power the house ("backfeeding"): it can send electricity back into the utility lines and injure line workers, and it can start fires. Connecting a generator to a home's wiring is a job for a licensed electrician, with the permit and inspection your local code requires. Wattstanding does not give wiring instructions.

If you plan to connect it to the house, compare it with the equipment in our transfer switch and hookup library and read the whole-house guide.

Fit check before you buy

Checks to make against your loads and your plan before ordering.

✓ Required? Check firsti Good to know

✓Loads fit the outputAdd up the running watts of everything you will run together; keep the total under 3,600 W.
?Starting surgeMotor and compressor loads can start at several times their running watts; the maker states 3,600 W of surge.
?Outlets and voltage5 outlets, 3600W total (Surge 7200W)
iRecharge planDecide how you will refill it: wall power, solar or a generator, within its stated input limits.
iExpansionYes.
iWeight99 lb as stated — plan how you will move it.

Specifications

Each figure is labelled with where it comes from. Numbered references link to the source list below.

Manufacturer storeRetailer listingWattstanding calculationNot verified

Published specifications

Battery capacity	3,600 Wh[S1]	Manufacturer store
Continuous AC output	3,600 W[S1]	Manufacturer store
Surge output (as stated)	3,600 W[S1]	Manufacturer store
Battery chemistry	LiFePO4[S1]	Manufacturer store
Cycle life	6,500 cycles to 50% capacity[S1]	Manufacturer store
AC outlets	5 outlets, 3600W total (Surge 7200W)[S1]	Manufacturer store
USB-C ports	Quantity: 2[S1]	Manufacturer store
Solar input (as stated)	1,600 W[S1]	Manufacturer store
AC charging input	1,800 W[S1]	Manufacturer store
Expansion	Yes.[S1]	Manufacturer store
Weight	99 lb[S1]	Manufacturer store
Dimensions	2511.216.4 in/63.528.442cm[S1]	Manufacturer store
Noise	60 dB[S1]	Manufacturer store
App / connectivity	Wi-Fi, Bluetooth[S1]	Manufacturer store

Wattstanding calculations

Usable energy (85% of capacity)	3,060 Wh	Wattstanding calculation
Refrigerator runtime (typical)	2.1 days	Wattstanding calculation
Price per kWh of storage	$528	Wattstanding calculation

Limitations to weigh

Specifications are the maker's or seller's; Wattstanding has not tested this product.
Runtime figures are calculations with stated assumptions, not measurements.
Prices change; confirm the price, stock and what is included before ordering.

Alternatives worth comparing

Anker SOLIX F3800 Portable Power Station - 3840Wh (A1790111)3,840 Wh, 6,000 W; $81 more

EcoFlow DELTA 3 Ultra Series Portable Power Station (3072Wh)3,072 Wh, 3,600 W; $100 more

Dabbsson DBS3500 Portable Power Station3,430 Wh, 3,600 W; $300 less

Jackery HomePower 2000 Plus v2 (4kWh)4,000 Wh, 2,400 W; $220 less

Where to buy

Our link opens this exact product page. Prices and stock change; check before you order.

$1,899EcoFlow listed price (base model) · seen 30 Sep 2026

View at EcoFlow Check price on Amazon

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Questions buyers ask

How long will the EcoFlow DELTA Pro Portable Power Station run a refrigerator?

About 2.1 days on a full charge by our calculation (typical modern refrigerator, 40% duty cycle, 85% efficiency). Your refrigerator's nameplate and its door-opening habits change this.

Can the EcoFlow DELTA Pro Portable Power Station run a sump pump or well pump?

Sump pump (1/3 hp): yes. Well pump (1/2 hp): yes. These use typical wattages; read the pump's nameplate.

Can I use it to power my whole house?

Not by plugging the house into it. With 3,600 Wh it holds about 12% of one day's energy for a home that uses 30 kWh a day (an example figure — check your own bill), and connecting it to home wiring needs a licensed electrician.

Where can I buy the EcoFlow DELTA Pro Portable Power Station?

1 seller list it: EcoFlow.

Sources and verification

EcoFlow — EcoFlow DELTA Pro Portable Power Station — product page and specifications Retrieved 30 Sep 2026

Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work

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