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EcoFlow RIVER 2 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.
Capacity256 Wh
AC output300 W
Surge600 W
ChemistryLFP
ConfidenceVerified
Source regionUS
Checked2026-06-24
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| Battery capacity | 256 Wh |
|---|---|
| Battery chemistry | LFP |
| AC output | 300 W |
| Surge output | 600 W |
| DC output | 100 W |
| USB-C output | 60 W |
| Solar input | 110 W |
| Weight | 3.5 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.
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| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | above tracked AC output | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 4h 54m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 6h 29m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 16h 54m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 1h 58m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with EcoFlow RIVER 2 prefilled from the source-linked specs above.
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Power station model
Battery capacity (Wh): 256 WhContinuous output rating (W): 300 WSurge output rating (W): 600 W
Estimated runtime3h 16m2h 3m – 4h 3mEstimated runtime: 3h 16m, 2h 3m – 4h 3m
Output path
Estimated runtime
3h 16mEstimated runtime: 3h 16mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative2h 3m
Estimated3h 16m
Optimistic4h 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
- 196 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
- 256 Wh
- Battery capacity (Wh): 256 Wh
- Usable energy
- 196 Wh
- 256 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
- 3h 16m
- 196 Wh / 60 W = 3h 16m
- 256 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
3h 16mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy196 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative2h 3m
Estimated3h 16m
Optimistic4h 3m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Rated battery256 WhBattery capacity (Wh): 256 Wh
Usable energy196 Wh256 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 runtime3h 16m196 Wh / 60 W = 3h 16m
Assumptions
- 256 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 a compact class; use it for small electronics and short essentials rather than high-wattage appliances.
- Tracked AC output is 300 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 110 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 3
245 Wh, 300 W AC output, confidence: Verified.
RIVER 3 Plus
286 Wh, 600 W AC output, confidence: Verified.
TRAIL 300 DC
288 Wh, unknown AC output, confidence: Verified.
Sources
- EcoFlow RIVER 2 specifications (official; checked 2026-06-24)