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EcoFlow DELTA 2 Max Runtime Calculator
Quick answer: the EcoFlow DELTA 2 Max stores 2,048 Wh and delivers up to 2,400 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 15.7 hours. Last source check: 2026-08-21. This is an estimate, not a guarantee.
Battery capacity2,048 Wh
AC output2,400 W
Surge output4,800 W
Battery chemistryLFP
ConfidenceVerified
Source regionGlobal/general sources
checked2026-08-21
Swipe table sideways
| Battery capacity | 2,048 Wh |
|---|---|
| Battery chemistry | LFP |
| AC output | 2,400 W |
| Surge output | 4,800 W |
| DC output | 126 W |
| USB-C output | 100 W |
| Solar input | 1,000 W |
| Weight | 23 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | Global/general sources |
| Last verified | 2026-08-21 |
Catalog notes (original English)
DC output stores the highest single 12V output, the 126W car outlet. The source labels 4,800W as surge separately from the 3,400W X-Boost appliance-support mode.
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% | 9h 30m Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| CPAP without heated humidifier | 40 W · 100% · AC inverter · Reserve: 15% | 1d 13h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Starlink Mini | 32 W · 100% · USB-C PD · Reserve: 10% | 2d 5h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| Wi-Fi router | 12 W · 100% · AC inverter · Reserve: 10% | 5d 15h Within the tracked power limits; compatibility still needs checking | Estimated | Open estimate |
| LED TV | 100 W · 100% · AC inverter · Reserve: 10% | 15h 40m 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): 2048 WhContinuous output rating (W): 2400 WSurge output rating (W): 4800 W
Estimated runtime1d 2h16h 21m – 1d 8hEstimated runtime: 1d 2h, 16h 21m – 1d 8h
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.
1d 2hEstimated runtime: 1d 2hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.
Conservative16h 21m
Estimated1d 2h
Optimistic1d 8h
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
- 2048 Wh
- Usable energy
- 1567 Wh
- 2048 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
- 1d 2h
- 1567 Wh / 60 W = 1d 2h
- 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
1d 2hThis setup has comfortable headroom for overnight use, assuming the wattage estimate is realistic.Usable energy1567 Wh
Average load60 W
Fixed station overheadUnknown (not included)
Running watts60 W
Max surgen/a
Runtime range
Conservative16h 21m
Estimated1d 2h
Optimistic1d 8h
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Usable energy1567 Wh2048 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 runtime1d 2h1567 Wh / 60 W = 1d 2h
Assumptions
- 2048 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: 2,048 Wh. Size the battery for your measured average load and required hours, including reserve.
- Tracked output: 2,400 W. Compare both running demand and startup demand before using any runtime estimate.
- Solar input limit: 1,000 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: 23 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 Max
2,048 Wh · AC output: 2,400 W · Confidence: Verified
EcoFlow DELTA 3 Max Plus
2,048 Wh · AC output: 3,000 W · Confidence: Verified
EcoFlow DELTA Max 2000
2,016 Wh · AC output: 2,000 W · Confidence: Verified
Specification comparison
Use these as planning shortcuts, then confirm the full table and sources.
Jackery Explorer 1000 Plus vs EcoFlow DELTA 2 Max
1,264.64 Wh / 2,048 Wh · AC output: 2,000 W / 2,400 W
Jackery Explorer 2000 v2 vs EcoFlow DELTA 2 Max
2,042 Wh / 2,048 Wh · AC output: 2,200 W / 2,400 W
BLUETTI AC200L vs EcoFlow DELTA 2 Max
2,048 Wh / 2,048 Wh · AC output: 2,400 W / 2,400 W
Sources
- EcoFlow DELTA 2 Max user manual (Official; checked 2026-08-21)