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EcoFlow DELTA Max 1600 Runtime Calculator

Quick answer: the EcoFlow DELTA Max 1600 stores 1,612 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 12.3 hours. Last source check: 2026-07-10. This is an estimate, not a guarantee.

EcoFlow DELTA Max 1600 portable power station
Battery capacity1,612 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 1600: Key facts
Battery capacity1,612 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 1600Wh 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%7h 28m
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
CPAP without heated humidifier40 W · 100% · AC inverter · Reserve: 15%1d 5h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Starlink Mini32 W · 100% · USB-C PD · Reserve: 10%1d 17h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
Wi-Fi router12 W · 100% · AC inverter · Reserve: 10%4d 10h
Within the tracked power limits; compatibility still needs checking		EstimatedCalculator
LED TV100 W · 100% · AC inverter · Reserve: 10%12h 20m
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): 1612 WhContinuous output rating (W): 2000 WSurge output rating (W): 5000 W
EcoFlow DELTA Max 1600
Estimated runtime20h 33m12h 52m – 1d 1hEstimated runtime: 20h 33m, 12h 52m – 1d 1h
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.

20h 33mEstimated runtime: 20h 33m

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

Conservative12h 52m
Estimated20h 33m
Optimistic1d 1h

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
1612 Wh
Usable energy
1233 Wh
1612 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
20h 33m
1233 Wh / 60 W = 20h 33m
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.com

WattRunTime estimate

Estimated runtime

20h 33mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Usable energy1233 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a

Runtime range

Conservative12h 52m
Estimated20h 33m
Optimistic1d 1h

Show your work

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

Usable energy1233 Wh1612 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 runtime20h 33m1233 Wh / 60 W = 20h 33m

Assumptions

  • 1612 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: 1,612 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