4h 45m
Estimated runtime for full-size refrigerator.
Model by device runtime
EcoFlow DELTA 2 Refrigerator Runtime Estimate
A 1kWh-class outage check for a cycling full-size refrigerator. The estimate uses the same runtime engine as the main calculator and keeps source confidence visible.
does not meet this planning target without changing load, reserve, or capacity
8-hour planning target.
AC inverter
Output path with 1800 W tracked output limit.
This estimate assumes 500 W running draw, 33% duty cycle, 85% efficiency, and 10% reserve.
Runtime Range
Use the range to plan around temperature, battery condition, and measurement uncertainty.
Conservative2h 58m
Estimated4h 45m
Optimistic5h 54m
Assumptions
These are calculation inputs, not lab-tested runtime claims.
- 1024 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 165 W average load from 1 load
- 100% battery health
- 0% temperature loss
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
Sources
Station facts and scenario wattage notes stay separated so the estimate is easier to audit.
Station Sources
- EcoFlow DELTA 2 specifications (official)
Scenario Sources
- EnergySage refrigerator wattage guide (editorial)
Confidence
- Station: verified
- Scenario: estimated
- Last station verification: 2026-06-24
Next Steps
Refine this estimate if your actual device wattage or power path is different.
Adjust the calculator
Review the model
Review the scenario
FAQ
Short answers for this model and device pair.
How long will EcoFlow DELTA 2 run full-size refrigerator?
Using the current assumptions, the estimate is 4h 45m. Real runtime depends on device settings, output path, temperature, battery age, and measured wattage.
Is this a guaranteed runtime?
No. It is a planning estimate from source-linked station specs and scenario wattage assumptions. Use a watt meter and manufacturer guidance for critical backup planning.