Source-linked model

EcoFlow RIVER 3 Max 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 RIVER 3 Max portable power station
Capacity572 Wh
AC output600 W
Surge1,200 W
ChemistryLiFePO4
ConfidenceVerified
Source regionregional
Checked2026-06-25
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Key specifications for EcoFlow RIVER 3 Max.
Battery capacity572 Wh
Battery chemistryLiFePO4
AC output600 W
Surge output1,200 W
DC output126 W
USB-C output100 W
Solar input220 W
Weight7.8 kg
ConfidenceVerified
Lifecycle statusUnknown
Source regionregional
Last verified2026-06-25
Record models the RIVER 3 Plus paired with the EB300 extra battery as the RIVER 3 Max bundle.
Regional source note: Some specs are cross-checked against official regional pages (ca.ecoflow.com: EcoFlow RIVER 3 Plus extra battery product page). Regional SKUs can differ; verify the manufacturer page for your market before purchase or emergency planning.

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 RIVER 3 Max.
ScenarioDefault loadEstimateScenario confidenceStation page
Full-size refrigerator500 W at 33%2h 39mEstimatedUse calculator
CPAP without heated humidifier40 W at 100%10h 56mEstimatedUse calculator
Starlink Mini32 W at 100%14h 29mEstimatedUse calculator
Wi-Fi router12 W at 100%1d 13hEstimatedUse calculator
LED TV100 W at 100%4h 23mEstimatedUse calculator

Open calculator with this station

Calculator for this station

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

Loading calculatorPreparing calculator
Power station model
Battery capacity (Wh): 572 WhContinuous output rating (W): 600 WSurge output rating (W): 1200 W
EcoFlow RIVER 3 Max
Estimated runtime7h 18m4h 34m – 9h 3mEstimated runtime: 7h 18m, 4h 34m – 9h 3m
Output path

Estimated runtime

7h 18mEstimated runtime: 7h 18m

This setup may cover a partial outage or single overnight session. Add capacity for more margin.

Conservative4h 34m
Estimated7h 18m
Optimistic9h 3m

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
438 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
572 Wh
Battery capacity (Wh): 572 Wh
Usable energy
438 Wh
572 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
7h 18m
438 Wh / 60 W = 7h 18m
  • 572 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 best suited to lighter essentials such as routers, laptops, CPAP planning, lights, and smaller camping loads.
  • Tracked AC output is 600 W, so high-draw appliances and tools need careful filtering.
  • USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
  • Tracked solar input is 220 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.

Related EcoFlow Records

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

RIVER 2 Max

512 Wh, 500 W AC output, confidence: Verified.

RIVER 2 Pro

768 Wh, 800 W AC output, confidence: Verified.

TRAIL 300 DC

288 Wh, unknown AC output, confidence: Verified.

Sources