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EcoFlow DELTA Max 2000 Runtime Calculator

Quick answer: the EcoFlow DELTA Max 2000 stores 2,016 Wh and delivers up to 2,000 W of continuous AC power. Under this site's planning assumptions (85% inverter efficiency, 10% reserve), a steady 100 W AC load runs for roughly 15.4 hours. Last source check: 2026-07-10. This is an estimate, not a guarantee.

EcoFlow DELTA Max 2000 portable power station
Battery capacity2,016 Wh
AC output2,000 W
Surge output5,000 W
Battery chemistryNCM
ConfidenceVerified
Source regionGlobal/general sources
checked2026-07-10
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EcoFlow DELTA Max 2000: Key facts
Battery capacity2,016 Wh
Battery chemistryNCM
AC output2,000 W
Surge output5,000 W
DC output126 W
USB-C output100 W
Solar input800 W
Weight22 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionGlobal/general sources
Last verified2026-07-10
Catalog notes (original English)

Manual source is used because the US product page is retired; record tracks the 2000Wh variant.

Runtime estimate

Formula starting points use each scenario’s default watts, duty cycle and output path, with 10% reserve or 15% for CPAP. Linked detail pages use the same inputs. Hours apply only if the device can run and start; they are not measured runtimes.

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Runtime estimate
Device scenarioPlanning defaultEstimated runtimeDevice scenario: ConfidenceModels
Full-size refrigerator500 W · 33% · AC inverter · Reserve: 10%9h 21m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%1d 12h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%2d 4h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%5d 13h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%15h 25m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Adjust these assumptions in the runtime calculator

Runtime calculator

Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.

Loading calculatorPreparing calculator
Power station model
Battery capacity (Wh): 2016 WhContinuous output rating (W): 2000 WSurge output rating (W): 5000 W
EcoFlow DELTA Max 2000
Estimated runtime1d 1h16h 5m – 1d 7hEstimated runtime: 1d 1h, 16h 5m – 1d 7h
Output path

Estimated runtime

Within the tracked power limits; compatibility still needs checking

This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.

1d 1hEstimated runtime: 1d 1h

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

Conservative16h 5m
Estimated1d 1h
Optimistic1d 7h

These are calculated sensitivity cases, not a statistical confidence interval. Conservative uses lower efficiency and battery health, more reserve/temperature loss and higher load; optimistic changes these assumptions in the opposite direction.

  • This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
  • Within the tracked power limits; compatibility still needs checking

Show your work

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

Rated battery
2016 Wh
Usable energy
1542 Wh
2016 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
1d 1h
1542 Wh / 60 W = 1d 1h
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.

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WattRunTime estimate

Estimated runtime

1d 1hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy1542 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative16h 5m
Estimated1d 1h
Optimistic1d 7h

Show your work

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

Usable energy1542 Wh2016 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 runtime1d 1h1542 Wh / 60 W = 1d 1h

Assumptions

  • 2016 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. Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
  • Within the tracked power limits; compatibility still needs checking

Planning notes

  • Capacity class: 2,016 Wh. Size the battery for your measured average load and required hours, including reserve.
  • Tracked output: 2,000 W. Compare both running demand and startup demand before using any runtime estimate.
  • Solar input limit: 800 W. Actual refill depends on panel voltage/current compatibility, sunlight, angle and charging losses.

Known data gaps

  • Unverified or missing specifications remain visible. The confidence label describes the station record, not a tested runtime or approval for emergency use.
  • Weight: 22 kg. Check the complete carrying setup, cables and battery extensions before choosing this model for travel.
  • unknown: —

Models: EcoFlow

Compare nearby capacity records from the same brand, then check output, weight and missing fields. A larger battery does not establish device compatibility.

Sources