1
Voltage Gate
PASSDevice output type must match generator output.
120V required -> 120V available
No — the DELTA 3 Plus is underpowered for a RV Rooftop AC
No - this pairing is underpowered. Safe target ~2235W running / 11070W surge; the generator provides 1800W / 3600W.
- • Startup surge shortfall: needs 8856W (safe target ~11070W), generator provides 3600W.
Power Margin Analysis
1800W / 3600W Capacity Running 435W short
2235W required
Surge 7470W short
11070W required
Decision Gate Waterfall
Same decision gates as the engine: voltage, running, surge. Runtime is shown as operational context.
2
Running Gate
FAILContinuous draw with safety buffer applied.
2,235W required -> 1,800W available (435W short)
Required 2,235W required
Available 1,800W
3
Surge Gate
FAILStartup peak with safety buffer applied.
11,070W required -> 3,600W available (7,470W short)
Required 11,070W required
Available 3,600W
3b
With Soft-Start
FAILAlternative startup path with reduced inrush.
4,982W required -> 3,600W available (1,382W short)
Required 4,982W
Available 3,600W
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
Runtime estimate appears after running and surge gates pass.
Power bars show required versus available output for each gate.
See generators that pass nativelyDecision Snapshot
Quick compatibility, required headroom, and model-specific context at a glance.
⚡
1800W
Running Power
🔋
1024Wh
Capacity
⏱️
—
Est. Runtime
☀️
1000W
Solar Input
Quick Compatibility Check
- 1 Running headroom: target 2235W; generator provides 1800W.
- 2 Surge headroom: target 11070W; generator provides 3600W.
- 3 Result: pick a higher-output unit for safe operation.
What To Do Instead
- 1 Underpowered: The RV Rooftop AC (13,500 BTU) needs 2235W running / 11070W surge (with 25% buffer). The DELTA 3 Plus provides 1800W / 3600W.
- 2 Safe target: Look for a power station with at least 2235W continuous and 11070W surge at 120V.
- 3 Compatible alternative: The Delta Pro Ultra X (12000W / 24000W surge) clears this device's requirements.
Model-Specific Results
0 of 3 models are SAFE or TIGHT. Most demanding model: Dometic Brisk II B57915.71X (13,500 BTU) (8,856W surge).
| Model | Running | Surge | Verdict | Runtime | Source |
|---|---|---|---|---|---|
| Dometic Brisk II B57915.71X (13,500 BTU) | 1,788W | 8,856W | Fail | — | OEM Manual |
Show expert analysisTechnical: This 13,500 BTU rooftop unit is a high continuous compressor load. Using OEM current and locked-rotor values, modeled running demand is 1788W with OEM-derived startup demand at 8856W. Field note: For RV battery systems, this is a realistic upper-bound 13.5k BTU profile to test first before selecting any smaller rooftop AC model. Can a portable power station run a 13,500 BTU RV rooftop AC? Only if it can cover this profile at 120V: 1788W running and 8856W startup (or equivalent soft-start handling). In practice, startup headroom is usually the limiting factor. | |||||
| Coleman-Mach 8 Plus (13,500 BTU) | 1,633W | 4,899W | Fail | — | NEC Standard |
Show expert analysisTechnical: Coleman-Mach 8 Plus sits in the same rooftop AC class but with slightly lower modeled continuous draw than the Dometic worst case in this set. Field note: Treat this as a serious RV cooling load, not a light camping appliance. Prioritize surge headroom before runtime calculations. Can a portable power station run a 13,500 BTU RV rooftop AC? Only if it can cover this profile at 120V: 1788W running and 8856W startup (or equivalent soft-start handling). In practice, startup headroom is usually the limiting factor. | |||||
| Airxcel Mach 10 45203-8*6 (13,500 BTU) | 1,450W | 7,245W | Fail | — | OEM Manual |
Show expert analysisTechnical: Mach 10 provides an OEM direct running watt value in the 13.5k BTU class, making it a useful mid-range benchmark for RV rooftop cooling. Field note: When comparing stations, check both sustained inverter output and startup tolerance. One without the other is not sufficient for rooftop AC duty. Can a portable power station run a 13,500 BTU RV rooftop AC? Only if it can cover this profile at 120V: 1788W running and 8856W startup (or equivalent soft-start handling). In practice, startup headroom is usually the limiting factor. | |||||
How This Pairing Performs Across Our Database
This unit is outside the compatible set; 3 of 33 generators pass SAFE/TIGHT for this device.
How RV Rooftop AC (13,500 BTU) Performs Across 33 Tested Generators
3 of 33 generators are SAFE+TIGHT for RV Rooftop AC (13,500 BTU).
3
Safe+Tight
Safe 2 (6%)
Tight 1 (3%)
Soft Start 6 (18%)
Fail 24 (73%)
Power Comparison: EcoFlow DELTA 3 Plus vs Top Alternatives for RV Rooftop AC (13,500 BTU)
EcoFlow DELTA 3 Plus Fail
Current unit
Running 1,800W
Surge 3,600W
Fit class uses buffered needs (running and surge) for this device.
Specs & Surge Analysis
⚡
Outdoor & RV
RV Rooftop AC (13,500 BTU)
RV Rooftop Cooling (Boondocking)
Select Your Model:
1788W
Running
8856W
Surge
120V
Required
True Surge™ Analysis
Safety Buffer: +25% Running Power Usage 124% Utilization
2235W required 1800W Capacity
435W short
Surge/Startup Peak 308% Utilization
11070W required 3600W Capacity
7470W short
Voltage Match 120V ↔ 120V ✓
Startup Surge Visual
Startup Surge
RV Rooftop AC (13,500 BTU) vs DELTA 3 Plus
Startup surge exceeds the power station limit. A soft starter may resolve the surge gap.
⚠️
Before You Buy: Connection Check
RV connection
RVs often use a 30A plug. If the station only has standard outlets, you may need an adapter and will be limited to standard outlet power (~1800W).
Compatible Alternatives to DELTA 3 Plus
These generators meet RV Rooftop AC (13,500 BTU)'s voltage, running, and surge requirements.
Best Value 
Delta Pro Ultra X
12000W • 6144Wh
Runtime at your load
~2.4h
Capacity Fit Fixed 6144Wh
Lowest capacity that still clears surge + running load.
Max Runtime 
Delta Pro Ultra
6000W • 6144Wh
Runtime at your load
~2.4h
Longest Runtime Fixed 6144Wh
Highest available capacity for longer runtime.
Compare Similar Units
Free Tools
Station Tools
Generator Insights
The 3600W surge capacity can support typical residential motor startup scenarios including refrigerator compressors, well pumps, and power tools with inductive loads. The 1024Wh capacity sustains the 1800W continuous rating for approximately 34 minutes at full draw. This configuration can handle brief high-demand events common in backup power and job site applications.
LFP chemistry provides stable electrochemical performance under load cycling. The 3600W surge rating indicates transient overcurrent capability designed for inductive startup events. Source: EcoFlow DELTA 3 Plus User Manual v1.0 (Output Specs Section) (manufacturer documentation). Users must verify that connected equipment falls within these published limits.
Technical Analysis
Spec-Based • No GuaranteesTechnical Breakdown
RV rooftop AC is a compressor-dominant 120V load class where both continuous draw and startup behavior matter. This parent profile uses the most demanding variant in the set to prevent under-sizing recommendations.
Expected Behavior
In real RV use, a rooftop AC can run for hours once started, but startup and hot-weather margin are the key electrical constraints. Soft-start capable setups widen compatibility.
Field Note
For boondocking decisions, evaluate surge headroom first, then battery runtime for the planned cooling window.
Frequently Asked Questions
Can the EcoFlow DELTA 3 Plus power a RV Rooftop AC?
No. The EcoFlow DELTA 3 Plus falls short on both running (1800W offered vs 2235W needed) and surge (3600W offered vs 11070W needed). Safe targets include a 25% buffer for the RV Rooftop AC (13,500 BTU)'s compressor load profile.
How long will the DELTA 3 Plus run a RV Rooftop AC?
No reliable runtime estimate — this pairing is not compatible. The EcoFlow DELTA 3 Plus cannot safely power the RV Rooftop AC (13,500 BTU). See compatible alternatives above for power stations that meet this device's requirements.
Power Tip: To get the most out of your DELTA 3 Plus, keep it in a well-ventilated area. Extreme temperatures can slightly reduce the efficiency of the LFP/NMC cells.
Compare all 33 generators for the RV Rooftop AC (13,500 BTU)
Ranked by budget, runtime, and overall compatibility.
Technical Sourcing & Verification
ID: ecoflow-delta-3-plus-rv-rooftop-ac 🏛️ Device Data Source
Engineering Est. Safety Factor Applied
Derived from variant list (max of variants). Running worst case = Dometic Brisk II B57915.71X (1788W from 120V x (12.4A compressor + 2.5A fan)). Surge worst case = Dometic Brisk II B57915.71X (8856W from 120V x (68.0A compressor LRA + 5.8A fan locked rotor amps) from OEM table).
⚡ Generator Specs Source
OEM Verified
EcoFlow DELTA 3 Plus User Manual
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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