Menu
EcoFlow RIVER 2 Pro Runtime Calculator
Quick answer: the EcoFlow RIVER 2 Pro stores 768 Wh and delivers up to 800 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 5.9 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity768 Wh
AC output800 W
Surge output1,600 W
Battery chemistryLFP
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-21
Swipe table sideways
| Battery capacity | 768 Wh |
|---|---|
| Battery chemistry | LFP |
| AC output | 800 W |
| Surge output | 1,600 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 220 W |
| Weight | 8.25 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-21 |
Catalog notes (original English)
The 1,600W value is retained because EcoFlow's exact specification publishes it as surge separately from the 800W rated AC output.
Measurement Records
Third-party results apply to the listed model, output path and test load. The delta is against a fixed no-reserve planning formula, not an error score or a prediction at other loads. Missing test conditions remain unknown.
Swipe table sideways
| Test | Measured | default planning estimate | Vs estimate | Source |
|---|---|---|---|---|
| Capacity test (AC) Average test load: unknown test date unknown | 620 Wh 81% | 653 Wh | -33 Wh (-5%) | OutdoorGearLab Best Power Stations of 2026 source date unknown; accessed 2026-09-04 |
| Capacity test (AC) Average test load: unknown test date unknown | 640 Wh 83% | 653 Wh | -13 Wh (-2%) | HoboTech EcoFlow River 2 Pro review 2023-04-06; accessed 2026-09-04 |
| Capacity test (DC) Average test load: unknown test date unknown | 670 Wh 87% | 691 Wh | -21 Wh (-3%) | HoboTech EcoFlow River 2 Pro review 2023-04-06; accessed 2026-09-04 |
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% | 3h 34m 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% | 13h 52m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 19h 52m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 2d 2h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 5h 53m 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.
Loading calculatorPreparing calculator
This tool didn't load
Something blocked the calculator from starting. Check your connection or reload the page to try again.
Power station model
Battery capacity (Wh): 768 WhContinuous output rating (W): 800 WSurge output rating (W): 1600 W
Estimated runtime9h 48m6h 8m – 12h 10mEstimated runtime: 9h 48m, 6h 8m – 12h 10m
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.
9h 48mEstimated runtime: 9h 48mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.
Conservative6h 8m
Estimated9h 48m
Optimistic12h 10m
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
- 768 Wh
- Usable energy
- 588 Wh
- 768 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
- 9h 48m
- 588 Wh / 60 W = 9h 48m
- 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
9h 48mThis setup may cover a partial outage or single overnight session. Add capacity for more margin.Usable energy588 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative6h 8m
Estimated9h 48m
Optimistic12h 10m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy588 Wh768 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 runtime9h 48m588 Wh / 60 W = 9h 48m
Assumptions
- 768 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
Share URL
Planning notes
- Capacity class: 768 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 800 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 220 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: 8.25 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 Pro
720 Wh · AC output: 600 W · Confidence: Estimated
EcoFlow RIVER 3 Max Plus
858 Wh · AC output: 600 W · Confidence: Verified
EcoFlow DELTA mini
882 Wh · AC output: 1,400 W · Confidence: Estimated
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
EcoFlow RIVER 2 Pro vs BLUETTI AC70
768 Wh / 768 Wh · AC output: 800 W / 1,000 W
Anker SOLIX C800 vs EcoFlow RIVER 2 Pro
768 Wh / 768 Wh · AC output: 1,200 W / 800 W
Jackery Explorer 600 v2 vs EcoFlow RIVER 2 Pro
640 Wh / 768 Wh · AC output: 500 W / 800 W
Sources
- EcoFlow RIVER 2 Pro specifications (Official; checked 2026-08-21)