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EcoFlow DELTA Pro 3 Runtime Calculator
Quick answer: the EcoFlow DELTA Pro 3 stores 4,096 Wh and delivers up to 4,000 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 31.3 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity4,096 Wh
AC output4,000 W
Surge output8,000 W
Battery chemistryLFP
ConfidenceVerified
Source regionUS source
checked2026-08-21
Swipe table sideways
| Battery capacity | 4,096 Wh |
|---|---|
| Battery chemistry | LFP |
| AC output | 4,000 W |
| Surge output | 8,000 W |
| DC output | 378 W |
| USB-C output | 100 W |
| Solar input | 2,600 W |
| Weight | 51.5 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | US source |
| Last verified | 2026-08-21 |
Catalog notes (original English)
DC output stores EcoFlow's published 378W 12V total, including the 30A Anderson port. USB-C output stores the 100W single-port rating. The exact table labels 8,000W as surge separately from the 6,000W X-Boost appliance-support mode.
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 | 3,790 Wh 93% | 3,482 Wh | +308 Wh (+9%) | OutdoorGearLab Best Power Stations of 2026 source date unknown; accessed 2026-09-04 |
| Capacity test (AC) Average test load: unknown test date unknown | 3,810 Wh 93% | 3,482 Wh | +328 Wh (+9%) | HoboTech EcoFlow Delta Pro 3 review 2024-06-26; 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% | 18h 59m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 3d 1h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 4d 9h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 11d 6h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 1d 7h 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): 4096 WhContinuous output rating (W): 4000 WSurge output rating (W): 8000 W
Estimated runtime2d 4h1d 8h – 2d 16hEstimated runtime: 2d 4h, 1d 8h – 2d 16h
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.
2d 4hEstimated runtime: 2d 4hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative1d 8h
Estimated2d 4h
Optimistic2d 16h
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
- 4096 Wh
- Usable energy
- 3133 Wh
- 4096 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
- 2d 4h
- 3133 Wh / 60 W = 2d 4h
- 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
2d 4hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy3133 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative1d 8h
Estimated2d 4h
Optimistic2d 16h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy3133 Wh4096 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 runtime2d 4h3133 Wh / 60 W = 2d 4h
Assumptions
- 4096 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: 4,096 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 4,000 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 2,600 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: 51.5 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 DELTA Pro
3,600 Wh · AC output: 3,600 W · Confidence: Verified
EcoFlow DELTA 3 Ultra
3,072 Wh · AC output: 3,600 W · Confidence: Verified
EcoFlow DELTA 3 Ultra Plus
3,072 Wh · AC output: 3,600 W · Confidence: Verified
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
EcoFlow DELTA Pro 3 vs Jackery Explorer 5000 Plus
4,096 Wh / 5,040 Wh · AC output: 4,000 W / 7,200 W
Sources
- EcoFlow DELTA Pro 3 product page (Official; checked 2026-08-21)