1
Voltage Gate
PASSDevice output type must match generator output.
120V required -> 120V/240V available
Yes, the Delta Pro Ultra can run a Full-Size Freezer
Yes - Delta Pro Ultra has enough running and surge power for the Full-Size Freezer (15-17 Cu. Ft.). Target ~200W running / 400W surge; the generator provides 6000W / 12000W.
Power Margin Analysis
6000W / 12000W Capacity Running 5800W headroom
200W required
Surge 11600W headroom
400W required
Decision Gate Waterfall
Same decision gates as the engine: voltage, running, surge. Runtime is shown as operational context.
2
Running Gate
PASSContinuous draw with safety buffer applied.
200W required -> 6,000W available (5,800W headroom)
Required 200W required
Available 6,000W
3
Surge Gate
PASSStartup peak with safety buffer applied.
400W required -> 12,000W available (11,600W headroom)
Required 400W required
Available 12,000W
3b
With Soft-Start
PASSAlternative startup path with reduced inrush.
180W required -> 12,000W available (11,820W headroom)
Required 180W
Available 12,000W
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
Continuous estimate: 26.9h
Device profile reference: up to 24h per day.
Power bars show required versus available output for each gate.
View full compatibility reportDecision Snapshot
Quick compatibility, required headroom, and model-specific context at a glance.
⚡
6000W
Running Power
🔋
6144Wh
Capacity
⏱️
~26.9h
Est. Runtime
☀️
5600W
Solar Input
Quick Compatibility Check
- 1 Running headroom: target 200W; generator provides 6000W.
- 2 Surge headroom: target 400W; generator provides 12000W.
- 3 Tip: leave headroom for startup spikes and warm conditions.
Model-Specific Results
3 of 3 models are SAFE or TIGHT. Most demanding model: Frigidaire FFFU16F2VW (16 Cu. Ft. Upright, Auto-Defrost) (320W surge).
| Model | Running | Surge | Verdict | Runtime | Source |
|---|---|---|---|---|---|
| GE FUF17DLRWW (17.3 Cu. Ft. Upright, Frost-Free, Garage Ready) | 153W | 306W | Safe | ~28.1h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 153W estimated from 441 kWh/yr at 0.33 duty cycle. **Estimated startup surge:** 306W at 2.0x running (conservative — no OEM LRA published). **Voltage:** 120V AC. Frost-free upright with electronic temperature control and garage-ready certification (0°F to 110°F ambient). Field note: Garage-ready certification means this freezer has an internal heater that activates in cold ambient conditions to keep the compressor warm. In winter garage use on battery power, energy consumption may increase — counter-intuitive but important for sizing. The 20A on the spec sheet is the circuit breaker requirement, not the actual draw. Can a portable power station keep this GE upright freezer running during an outage? At 153W running with 306W estimated surge, most power stations above 500W continuous can handle this freezer. A 1,000 Wh battery provides roughly 14 hours of runtime at average draw. | |||||
| Frigidaire FFFU16F2VW (16 Cu. Ft. Upright, Auto-Defrost) | 160W | 320W | Safe | ~26.9h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 160W estimated from 461 kWh/yr at 0.33 duty cycle. **Estimated startup surge:** 320W at 2.0x running (conservative — no OEM LRA published). **Voltage:** 120V AC. Auto-defrost upright with wire shelving and R-600A refrigerant. Field note: The Frigidaire is the most affordable option but also the least efficient at 461 kWh/yr. For extended outage use on battery power, the extra ~55 Wh/day versus the GE upright adds up over multi-day events. Not garage-rated — performance may degrade in unheated spaces below 55°F. How long can a portable power station run this Frigidaire freezer? At 160W running with 320W estimated surge, a 1,000 Wh power station provides roughly 13 hours at average draw. For a full 24-hour outage, budget at least 1,300 Wh of usable station capacity. | |||||
| GE FCM16DLWW (15.7 Cu. Ft. Chest, Manual Defrost, Garage Ready) | 127W | 254W | Safe | ~33.9h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 127W estimated from 277 kWh/yr at 0.25 duty cycle. **Estimated startup surge:** 254W at 2.0x running (conservative — no OEM LRA published). **Voltage:** 120V AC. Manual-defrost chest freezer with top-opening lid and garage-ready certification (0°F to 110°F ambient). Field note: This is the most power-station-friendly freezer in the set. Manual defrost means no surprise heater cycles draining the battery. The chest design retains cold for 36-48 hours without power if kept closed — buying critical time during extended outages. Garage-ready certification adds a compressor heater for cold ambient, but in summer outage scenarios it stays dormant. Why is the chest freezer so much more efficient on battery power? Three reasons: top-opening lid prevents cold air from falling out when opened, thicker insulation reduces heat gain, and manual defrost eliminates the periodic 400-600W heater cycle that upright auto-defrost models run every 12-24 hours. | |||||
How This Pairing Performs Across Our Database
This unit ranks #31 of 32 compatible generators for this device by buffered margin (Overkill class).
How Full-Size Freezer (15-17 Cu. Ft.) Performs Across 33 Tested Generators
32 of 33 generators are SAFE+TIGHT for Full-Size Freezer (15-17 Cu. Ft.).
32
Safe+Tight
Safe 32 (97%)
Soft Start 1 (3%)
Power Comparison: EcoFlow Delta Pro Ultra vs Top Alternatives for Full-Size Freezer (15-17 Cu. Ft.)
EcoFlow Delta Pro Ultra Safe Overkill
Current unit
Running 6,000W
Surge 12,000W
Fit class uses buffered needs (running and surge) for this device.
Specs & Surge Analysis
Emergency
Full-Size Freezer (15-17 Cu. Ft.)
Extended Food Storage
Select Your Model:
160W
Running
320W
Surge
120V
Required
True Surge™ Analysis
Safety Buffer: +25% Running Power Usage 3% Utilization
200W required 6000W Capacity
5800W headroom
Surge/Startup Peak 3% Utilization
400W required 12000W Capacity
11600W headroom
Voltage Match 120V ↔ 120V/240V ✓
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Generator Insights
With 12000 watts of surge capacity, this system can handle typical startup loads for central air compressors, well pumps, and other motor-driven equipment common in residential settings. The 6000-watt continuous rating supports sustained operation of multiple high-draw appliances simultaneously. The 6144 Wh capacity provides meaningful runtime for essential circuits during grid outages.
This unit uses lithium iron phosphate (LFP) chemistry, known for stable thermal behavior in stationary storage applications. The system is designed with internal protections typical of grid-tied and off-grid battery platforms. Source: EcoFlow DELTA Pro Ultra User Manual (manufacturer documentation).
Extend Runtime with Solar
Keep your Full-Size Freezer (15-17 Cu. Ft.) running with solar • MPPT: 80– 450V • Max: 5600W
Official EcoFlow
400W Panel
1 Hour Sun =
Runs Indefinitely
Plug & Play
Full in ~21.9h 
Smart Value Anker
400W Panel
1 Hour Sun =
Runs Indefinitely
Plug & Play
Full in ~21.9h 
Smart Value Bluetti
350W Panel
1 Hour Sun =
Runs Indefinitely
Plug & Play
Full in ~25.1h Technical Analysis
Spec-Based • No GuaranteesTechnical Breakdown
Running range: 127W to 160W depending on freezer type and efficiency rating. Estimated surge range: 254W to 320W at 2.0x running (conservative — no freezer manufacturer publishes LRA). Voltage: 120V AC. Chest freezers draw significantly less than uprights due to superior insulation and manual defrost.
Expected Behavior
Estimated runtime: ~26.9h. Freezers run 24 hours per day with intermittent compressor cycling. Daily energy consumption ranges from 759 Wh (chest manual-defrost) to 1,263 Wh (upright auto-defrost). Compressor duty cycle varies from ~25% (chest) to ~33% (upright frost-free).
Field Note
For emergency power planning, freezer type matters more than size. A 15.7 Cu. Ft. chest freezer uses 40% less energy than a 16 Cu. Ft. upright — and holds cold 36-48 hours without power if kept closed. Garage-ready models have internal heaters that increase winter consumption on battery power.
Frequently Asked Questions
Can the EcoFlow Delta Pro Ultra power a Full-Size Freezer?
Yes. The EcoFlow Delta Pro Ultra provides 6000W running / 12000W surge. The Full-Size Freezer (15-17 Cu. Ft.) needs 200W / 400W (including 25% buffer). That leaves 5800W of running headroom and 11600W of surge margin.
How long will the Delta Pro Ultra run a Full-Size Freezer?
Approximately 26.9 hours, based on the Full-Size Freezer (15-17 Cu. Ft.)'s 160W draw and the Delta Pro Ultra's 6144Wh capacity (70% usable after real-world losses).
What Else Can You Run?
With 1940W allocated to the Full-Size Freezer (15-17 Cu. Ft.), the Delta Pro Ultra still has ~2700W of margin. These devices could run simultaneously:
🌀
Box Fan (Medium)
60W
📺
55' LED TV
80W
🔥
Space Heater (Eco)
750W
💡
LED Lamp
10W
🥪
Microwave (Running)
1000W
🩺
CPAP (No Humidifier)
40W
Storm Safety: Since the Full-Size Freezer (15-17 Cu. Ft.) is critical for preventing flooding, we recommend testing this setup specifically before the storm season. Ensure the Delta Pro Ultra is fully charged to 100% as storms approach.
Compare all 33 generators for the Full-Size Freezer (15-17 Cu. Ft.)
Ranked by budget, runtime, and overall compatibility.
Technical Sourcing & Verification
ID: ecoflow-delta-pro-ultra-full-size-freezer 🏛️ Device Data Source
Engineering Est. Safety Factor Applied
Derived from variant list (max of variants). Worst case = Frigidaire FFFU16F2VW (160W running, 320W surge). Running watts derived from OEM kWh/yr via duty-cycle formula; surge estimated at 2.0x (conservative, no OEM LRA published for any freezer in this class).
⚡ Generator Specs Source
OEM Verified
EcoFlow DELTA Pro Ultra User Manual
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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