EcoFlow DELTA Pro 3: Runtime & Specs

The EcoFlow DELTA Pro 3 is a 4,096 Wh LiFePO4 power station with 4,000 W of continuous AC output and a 8,000 W surge rating, including 240 V. It runs a typical full-size fridge for about 2.5 days.

Capacity4,096 WhLiFePO4

Output4,000 W8,000 W surge

Solar input2,600 W30–150 V

Weight113.5 lbexpands to 12,288 Wh

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How long will the DELTA Pro 3 run your appliances?

Nonstop runtime for one device at a time, using typical US wattages and 85% inverter efficiency. Devices marked ✕ can't run on this model.

Estimated runtime by appliance for the EcoFlow DELTA Pro 3
Device	Avg draw	Runtime
LED light bulb	9 W	16.1 days
Phone charging	10 W	15.4 days
Wi-Fi router + modem	15 W	9.7 days
Laptop	50 W	2.9 days
CPAP + humidifier	30 W	4.8 days
CPAP with heated humidifier + humidifier	60 W	2.4 days
Starlink Standard	90 W	39 hours
TV	100 W	35 hours
Mini fridge	29 W	5 days
Refrigerator	58 W	2.5 days
Chest freezer	29 W	5 days
Sump pump (1/3 HP)	160 W	22 hours
Sump pump (1/2 HP)	210 W	17 hours
Window AC	225 W	15 hours
Drip coffee maker	1,000 W	3.5 hours
Microwave	1,500 W	2.3 hours
Space heater	750 W	4.6 hours
Well pump	33 W	4.4 days

Fridges, freezers, pumps and AC units cycle on and off, so we use their average draw. Want a mix of devices on a schedule? Use the runtime calculator.

What the DELTA Pro 3 can't power

Every appliance in our wattage chart is within its output limits.

Solar charging time

Hours of good sun to charge from empty, assuming panels deliver 75% of their rating and one array per 1,600 W solar input.

Panels	Power in	Hours of sun
100 W of panels	75 W	55 hours
200 W of panels	150 W	27 hours
400 W of panels	300 W	14 hours
1,600 W of panels	1,200 W	3.4 hours
2,600 W of panels (split across inputs)	1,950 W	2.1 hours

Check panel voltage and wiring with the solar charging calculator.

Full specifications

Battery capacity	4,096 Wh
Battery chemistry	LiFePO4 (LFP)
Continuous AC output	4,000 W
Surge (peak) output	8,000 W
X-Boost (heating devices)	6,000 W
AC voltage	120V/240V
AC outlets	7
USB-C ports	2 (up to 100 W)
USB-A ports	2
12 V car outlet	No
Max solar input	2,600 W (1,600 W per input)
Solar voltage range	30–150 V
Solar max current	15 A
Max AC charging power	—
AC charging time (maker claim)	—
Expandable	Yes, up to 12,288 Wh
UPS / EPS switchover	10 ms
Cycle life	4,000 cycles
Weight	113.5 lb
Warranty	5 years

Notes: Solar fields = High-PV; Low-PV 11–60V/20A/1000W. 12,288Wh w/ 2 DP3 EB. AC in 100–240V 15A (W not stated). No car socket (DC5521+Anderson). 0–80%/50 min claim is multi-charge.

Specs from EcoFlow's published documents, as of September 2026. Found an error? Tell us.

Sources

Similar power stations

Questions

How long will the EcoFlow DELTA Pro 3 run a refrigerator?

About 2.5 days for a typical ENERGY STAR full-size fridge averaging 58 W, assuming 85% inverter efficiency. Older or larger fridges use more. Try your own numbers.

Can the EcoFlow DELTA Pro 3 run a microwave?

Yes. A typical 1,000 W microwave pulls about 1,500 W from the outlet, within its 4,000 W continuous output. A full battery gives about 2.3 hours of cooking.

How long does the EcoFlow DELTA Pro 3 take to charge?

EcoFlow doesn't publish an AC charging time for it. With solar, it accepts up to 2,600 W (1,600 W per input). With 2,600 W of panels that's roughly 2.1 hours of good sun from empty.

Is the EcoFlow DELTA Pro 3 expandable?

Yes, up to 12,288 Wh with EcoFlow's extra batteries.

Does the EcoFlow DELTA Pro 3 work as a UPS?

EcoFlow lists a 10 ms switchover time, so it can keep devices like routers and computers running when the power drops. Check that your specific device tolerates the switch before relying on it for anything critical.