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EcoFlow RIVER 2 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.
Capacity512 Wh
AC output500 W
Surge1,000 W
ChemistryLFP
ConfidenceVerified
Source regionUS
Checked2026-06-24
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| Battery capacity | 512 Wh |
|---|---|
| Battery chemistry | LFP |
| AC output | 500 W |
| Surge output | 1,000 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 220 W |
| Weight | 6.1 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | US |
| Last verified | 2026-06-24 |
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.
Swipe table sideways
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | 2h 22m | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 9h 48m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 12h 58m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 1d 9h | Estimated | Use calculator |
| LED TV | 100 W at 100% | 3h 55m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with EcoFlow RIVER 2 Max prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 512 WhContinuous output rating (W): 500 WSurge output rating (W): 1000 W
Estimated runtime6h 32m4h 5m – 8h 6mEstimated runtime: 6h 32m, 4h 5m – 8h 6m
Output path
Estimated runtime
6h 32mEstimated runtime: 6h 32mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.
Conservative4h 5m
Estimated6h 32m
Optimistic8h 6m
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
- 392 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
- 512 Wh
- Battery capacity (Wh): 512 Wh
- Usable energy
- 392 Wh
- 512 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
- 6h 32m
- 392 Wh / 60 W = 6h 32m
- 512 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
Smallest matching record (8h)Jackery Explorer 600 v2
WattRunTime.com
WattRunTime estimate
Estimated runtime
6h 32mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.Usable energy392 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative4h 5m
Estimated6h 32m
Optimistic8h 6m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Rated battery512 WhBattery capacity (Wh): 512 Wh
Usable energy392 Wh512 Wh x 85% x 90% x 100% x 100%
Average load60 W60 W running, 60 W average after duty cycle and quantity
Fixed station overheadUnknown (not included)60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
Estimated runtime6h 32m392 Wh / 60 W = 6h 32m
Assumptions
- 512 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.
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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 500 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.
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Sources
- EcoFlow RIVER 2 Max specifications (official; checked 2026-06-24)