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EcoFlow DELTA Pro 3 Runtime Calculator

Use this source-linked record to estimate runtime from tracked capacity, output, charging, and weight fields. Unknown specs stay unknown until an official or manufacturer-grade source confirms them.

EcoFlow DELTA Pro 3 portable power station
Capacity4096 Wh
AC output4,000 W
Surge8,000 W
ChemistryLFP
ConfidenceVerified
Source regionUS
Checked2026-08-21
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Key specifications for EcoFlow DELTA Pro 3.
Battery capacity4096 Wh
Battery chemistryLFP
AC output4,000 W
Surge output8,000 W
DC output378 W
USB-C output100 W
Solar input2,600 W
Weight51.5 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionUS
Last verified2026-08-21
DC output stores EcoFlow's published 378W 12V total, including the 30A Anderson port. USB-C output stores the 100W single-port rating. The exact table labels 8,000W as surge separately from the 6,000W X-Boost appliance-support mode.

Third-party measured tests

These are published third-party measurements for this model. The delta compares measured delivered Wh with WattRunTime's default no-reserve planning estimate for the same output path; it is not a new measurement.

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Third-party measured runtime and capacity records for EcoFlow DELTA Pro 3.
TestMeasuredDefault estimateVs estimateSource
Capacity test (AC)
test date unknown		3,790 Wh
93% usable		3,482 Wh+308 Wh (+9%)OutdoorGearLab Best Power Stations of 2026
accessed 2026-08-20
Capacity test (AC)
test date unknown		3,810 Wh
93% usable		3,482 Wh+328 Wh (+9%)HoboTech EcoFlow Delta Pro 3 review
accessed 2026-08-07
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Runtime Starting Points

These are formula estimates using the tracked capacity, a 10% reserve, and each scenario's default wattage and duty cycle. They are planning starters, not measured runtimes.

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Runtime starting-point estimates for EcoFlow DELTA Pro 3.
ScenarioDefault loadEstimateScenario confidenceStation page
Full-size refrigerator500 W at 33%18h 59mEstimatedOpen estimate
CPAP without heated humidifier40 W at 100%3d 6hEstimatedOpen estimate
Starlink Mini32 W at 100%4d 7hEstimatedOpen estimate
Wi-Fi router12 W at 100%11d 6hEstimatedOpen estimate
LED TV100 W at 100%1d 7hEstimatedOpen estimate
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Calculator for this station

Adjust watts, duty cycle, reserve, output path, and startup surge with EcoFlow DELTA Pro 3 prefilled from the source-linked specs above.

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Power station model
Battery capacity (Wh): 4096 WhContinuous output rating (W): 4000 WSurge output rating (W): 8000 W
EcoFlow DELTA Pro 3
Estimated runtime2d 4h1d 8h – 2d 16hEstimated runtime: 2d 4h, 1d 8h – 2d 16h
Output path

Estimated runtime

2d 4hEstimated runtime: 2d 4h

This setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.

Conservative1d 8h
Estimated2d 4h
Optimistic2d 16h

Conservative assumes harder conditions; optimistic assumes favorable conditions.

  • This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.

Show your work

Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.

Rated battery
4096 Wh
Usable energy
3133 Wh
4096 Wh x 85% x 90% x 100% x 100%
Running watts
60 W
Average load
60 W
Max surge
n/a
Fixed station overhead
Unknown (not included)
60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime
2d 4h
3133 Wh / 60 W = 2d 4h
Output path
AC inverter
Efficiency (%)
85
Reserve kept unused (%)
10
Battery health (%)
100
Cold weather loss (%)
0

This link contains the numeric values you entered, but not custom load names.

Source-Backed Next Steps

WattRunTime.com

WattRunTime estimate

Estimated runtime

2d 4hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy3133 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative1d 8h
Estimated2d 4h
Optimistic2d 16h

Show your work

Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.

Usable energy3133 Wh4096 Wh x 85% x 90% x 100% x 100%
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime2d 4h3133 Wh / 60 W = 2d 4h

Assumptions

  • 4096 Wh nominal battery capacity
  • AC inverter output path
  • 85% conversion efficiency
  • 10% reserve kept unused
  • 60 W average load from 1 load
  • 100% battery health
  • 0% temperature loss
  • Fixed station overhead unknown; not included

Warnings

  • This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.

Good fit when

  • Capacity is in a larger outage/RV class, so the useful question is usually output limits, recharge speed, and weight rather than watt-hours alone.
  • Tracked AC output is high enough for many household plug-in loads, but surge still needs a separate check.
  • USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
  • Tracked solar input is 2,600 W before panel, weather, angle, and controller losses.

Watch out for

  • Surge output is tracked, but device startup behavior should still be checked against the actual load.
  • Tracked weight is in a heavier class; plan where it will live before treating it as a grab-and-go station.

Related EcoFlow Records

Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.

DELTA Pro

3,600 Wh, 3,600 W AC output, confidence: Verified.

Compare DELTA Pro 3 With Similar Stations

These source-aware comparisons use the same assumptions on both sides and keep unknown fields visible.

Sources