Menu
EcoFlow DELTA 2 Runtime Calculator
Quick answer: the EcoFlow DELTA 2 stores 1,024 Wh and delivers up to 1,800 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 7.8 hours. Last source check: 2026-08-20. This is an estimate, not a guarantee.
Battery capacity1,024 Wh
AC output1,800 W
Surge output2,700 W
Battery chemistryLFP (LiFePO4)
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-20
Swipe table sideways
| Battery capacity | 1,024 Wh |
|---|---|
| Battery chemistry | LFP (LiFePO4) |
| AC output | 1,800 W |
| Surge output | 2,700 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 500 W |
| Weight | 12 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-20 |
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 |
|---|---|---|---|---|
| Runtime test (AC) Average test load: ~380 W test date unknown | 900 Wh 88% | 870 Wh | +30 Wh (+3%) | Outdoor Life Best Portable Power Stations of 2026 2026-01-09; accessed 2026-09-04 |
| Runtime test (AC) Average test load: ~34 W test date unknown | 690 Wh 67% | 870 Wh | -180 Wh (-21%) | Outdoor Life Best Portable Power Stations of 2026 2026-01-09; accessed 2026-09-04 |
Why rated Wh and delivered Wh differ
These are attributed third-party observations, not our hardware tests. Small continuous loads may deliver fewer Wh because an inverter remains active for longer. Efficiency also varies with load. Reported Wh and approximate watts × rounded hours need not agree; preserve the source's readings. Do not infer an inverter wattage from their difference.
Swipe table sideways
| Model | Below 100 W | 100 W or more | Difference at higher load |
|---|---|---|---|
| EcoFlow DELTA 2 outdoorlife.com | ~34 W · AC 690 Wh (67.4%) | ~380 W · AC 900 Wh (87.9%) | +210 Wh |
Same model, output and source series; temperature, battery endpoints and individual test dates remain unknown. These observations show a load association, not a controlled proof of its cause. Delivered Wh already include losses: do not subtract efficiency or overhead again.
Inverter draw: reported, with unresolved conditions
Outdoor Life attributes this AC inverter-and-port column to manufacturer replies. It is not an independently reproduced battery-side measurement. Load, interval, temperature and battery endpoints are unknown; these figures are not applied automatically in our calculator. Unavailable stays unknown. Recheck your exact setup before entering fixed overhead.
Swipe table sideways
| Model | Reported draw | Observation checked |
|---|---|---|
| EcoFlow DELTA 2 | 10 W · AC | Outdoor Life · 2026-09-30 |
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% | 4h 45m 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% | 18h 30m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 1d 2h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 2d 19h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 7h 50m 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): 1024 WhContinuous output rating (W): 1800 WSurge output rating (W): 2700 W
Estimated runtime13h 3m8h 10m – 16h 13mEstimated runtime: 13h 3m, 8h 10m – 16h 13m
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.
13h 3mEstimated runtime: 13h 3mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative8h 10m
Estimated13h 3m
Optimistic16h 13m
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
- 1024 Wh
- Usable energy
- 783 Wh
- 1024 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
- 13h 3m
- 783 Wh / 60 W = 13h 3m
- 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
13h 3mThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy783 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative8h 10m
Estimated13h 3m
Optimistic16h 13m
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy783 Wh1024 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 runtime13h 3m783 Wh / 60 W = 13h 3m
Assumptions
- 1024 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: 1,024 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 1,800 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 500 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: 12 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 3 Classic
1,024 Wh · AC output: 1,800 W · Confidence: Verified
EcoFlow DELTA 3 Plus
1,024 Wh · AC output: 1,800 W · Confidence: Verified
EcoFlow DELTA 3
1,024 Wh · AC output: 1,800 W · Confidence: Verified
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
Jackery Explorer 1000 v2 vs EcoFlow DELTA 2
1,070 Wh / 1,024 Wh · AC output: 1,500 W / 1,800 W
EcoFlow DELTA 2 vs BLUETTI AC180
1,024 Wh / 1,152 Wh · AC output: 1,800 W / 1,800 W
Anker SOLIX C1000 vs EcoFlow DELTA 2
1,056 Wh / 1,024 Wh · AC output: 1,800 W / 1,800 W
Sources
- EcoFlow DELTA 2 specifications (Official; checked 2026-08-20)