Source-linked model

EcoFlow DELTA 3 Ultra Plus 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 3 Ultra Plus portable power station
Capacity3072 Wh
AC output3,600 W
Surge7,200 W
ChemistryLFP (LiFePO4)
ConfidenceVerified
Source regionUS
Checked2026-06-24
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Key specifications for EcoFlow DELTA 3 Ultra Plus.
Battery capacity3072 Wh
Battery chemistryLFP (LiFePO4)
AC output3,600 W
Surge output7,200 W
DC output378 W
USB-C output140 W
Solar input1,600 W
Weight33.7 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionUS
Last verified2026-06-24
DC output stores EcoFlow's shared 12V Anderson/cigarette-lighter maximum. X-Boost is listed separately at 4600W and should not be treated as continuous AC output.

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 3 Ultra Plus.
ScenarioDefault loadEstimateScenario confidenceStation page
Full-size refrigerator500 W at 33%14h 15mEstimatedUse calculator
CPAP without heated humidifier40 W at 100%2d 10hEstimatedUse calculator
Starlink Mini32 W at 100%3d 5hEstimatedUse calculator
Wi-Fi router12 W at 100%8d 10hEstimatedUse calculator
LED TV100 W at 100%23h 30mEstimatedUse calculator

Open calculator with this station

Calculator for this station

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

Loading calculatorPreparing calculator
Power station model
Battery capacity (Wh): 3072 WhContinuous output rating (W): 3600 WSurge output rating (W): 7200 W
EcoFlow DELTA 3 Ultra Plus
Estimated runtime1d 15h1d 0h – 2d 0hEstimated runtime: 1d 15h, 1d 0h – 2d 0h
Output path

Estimated runtime

1d 15hEstimated runtime: 1d 15h

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

Conservative1d 0h
Estimated1d 15h
Optimistic2d 0h

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.
Usable energy
2350 Wh
Average load
60 W
Fixed station overhead
Unknown (not included)
Running watts
60 W
Max surge
n/a

Show your work

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

Rated battery
3072 Wh
Battery capacity (Wh): 3072 Wh
Usable energy
2350 Wh
3072 Wh x 85% x 90% x 100% x 100%
Average load
60 W
60 W running, 60 W average after duty cycle and quantity
Fixed station overhead
Unknown (not included)
60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime
1d 15h
2350 Wh / 60 W = 1d 15h
  • 3072 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

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

Source-Backed Next Steps

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 1,600 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.

DELTA 2 Max

2,048 Wh, 2,400 W AC output, confidence: Verified.

Sources