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EcoFlow RIVER 3 Runtime Calculator
Quick answer: the EcoFlow RIVER 3 stores 245 Wh and delivers up to 300 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 1.9 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity245 Wh
AC output300 W
Surge output600 W
Battery chemistryLiFePO4
ConfidenceEstimated
Source regionUS source
checked2026-08-21
Swipe table sideways
| Battery capacity | 245 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| AC output | 300 W |
| Surge output | 600 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 110 W |
| Weight | 3.5 kg |
| Confidence | Estimated |
| Lifecycle status | Unknown |
| Source region | US source |
| Last verified | 2026-08-21 |
Catalog notes (original English)
DC output stores the 12.6V/10A car output; USB-C output stores the highest single-port rating. The 600W value is retained because the exact US table labels surge separately from the 300W rated output.
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.
Swipe table sideways
| Device scenario | Planning default | Estimated runtime | Device scenario: Confidence | Models |
|---|---|---|---|---|
| Full-size refrigerator | 500 W · 33% · AC inverter · Reserve: 10% | 1h 8m Exceeds a tracked power limit — do not rely on these hours | Estimated | Open estimate |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 4h 26m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 6h 20m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 16h 10m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1h 52m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
Runtime calculator
Runtime is conditional on successful startup, compatible voltage/connectors and sufficient output. Verify the actual device setup before relying on these hours.
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Power station model
Battery capacity (Wh): 245 WhContinuous output rating (W): 300 WSurge output rating (W): 600 W
Estimated runtime3h 7m1h 57m – 3h 53mEstimated runtime: 3h 7m, 1h 57m – 3h 53m
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.
3h 7mEstimated runtime: 3h 7mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative1h 57m
Estimated3h 7m
Optimistic3h 53m
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
- 245 Wh
- Usable energy
- 187 Wh
- 245 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
- 3h 7m
- 187 Wh / 60 W = 3h 7m
- 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.
Source-Backed Next Steps
Smallest matching record (8h)Jackery Explorer 600 Plus
WattRunTime.com
WattRunTime estimate
Estimated runtime
3h 7mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Usable energy187 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1h 57m
Estimated3h 7m
Optimistic3h 53m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy187 Wh245 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 runtime3h 7m187 Wh / 60 W = 3h 7m
Assumptions
- 245 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
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Planning notes
- Capacity class: 245 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 300 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 110 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: 3.5 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.
EcoFlow RIVER 2
256 Wh · AC output: 300 W · Confidence: Estimated
EcoFlow RIVER mini
210 Wh · AC output: 300 W · Confidence: Estimated
EcoFlow RIVER 3 Plus
286 Wh · AC output: 600 W · Confidence: Verified
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
DJI Power 500 vs EcoFlow RIVER 3
512 Wh / 245 Wh · AC output: 1,000 W / 300 W
Anker SOLIX C300 vs EcoFlow RIVER 3
288 Wh / 245 Wh · AC output: 300 W / 300 W
Sources
- EcoFlow RIVER 3 user manual (Official; checked 2026-08-21)
- EcoFlow RIVER 3 US product specifications (Official; checked 2026-08-21)