1
Voltage Gate
PASSDevice output type must match generator output.
120V required -> 120V/240V available
Yes, the Anker SOLIX F3800 can run a Box Fan (20-inch)
This pairing clears the safety headroom. Required ~96W running and 191W surge; the Anker SOLIX F3800 is rated 6000W / 9000W.
Power Margin Analysis
6000W / 9000W Capacity Running 5904W headroom
96W required
Surge 8809W headroom
191W 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.
96W required -> 6,000W available (5,904W headroom)
Required 96W required
Available 6,000W
3
Surge Gate
PASSStartup peak with safety buffer applied.
191W required -> 9,000W available (8,809W headroom)
Required 191W required
Available 9,000W
4
Runtime Insight
INFORuntime context only. It does not change the electrical compatibility verdict.
Continuous estimate: 32.4h
Device profile reference: up to 8h 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
🔋
3840Wh
Capacity
⏱️
~32.4h
Est. Runtime
☀️
2400W
Solar Input
Quick Compatibility Check
- 1 Running headroom: target 96W; generator provides 6000W.
- 2 Surge headroom: target 191W; generator provides 9000W.
- 3 Tip: leave headroom for startup spikes and warm conditions.
Model-Specific Results
3 of 3 models are SAFE or TIGHT. Most demanding model: Lasko B20200 (20-inch Box Fan) (166W surge).
| Model | Running | Surge | Verdict | Runtime | Source |
|---|---|---|---|---|---|
| Lasko B20200 (20-inch Box Fan) | 83W | 166W | Safe | ~32.4h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 83 W. **Surge:** 166 W (estimated 2x startup for shaded-pole motor). **Voltage:** 120 V AC. Small shaded-pole fan motors produce a brief inrush at startup that is typically 2x running — far less than the 3x NEC standard for larger motors. Field note: Box fans are among the easiest appliances to run off-grid. Even with the 2x startup surge, any power station rated 200W+ handles this fan comfortably. Will this fan drain my power station quickly? At 83W continuous, an 8-hour overnight run consumes ~664 Wh. A 1000Wh power station handles it with margin to spare. | |||||
| Lasko B20500 (20-inch Box Fan) | 72W | 144W | Safe | ~37.3h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 72 W. **Surge:** 144 W (estimated 2x startup). **Voltage:** 120 V AC. Slightly lower draw than the B20200 — same motor technology, lower speed setting or blade design. Field note: At 72W, this is the lightest box fan in the comparison. Perfect for overnight use on a portable power station — a 500Wh unit runs it for nearly 7 hours. Can I run this fan overnight on a 500 Wh power station? Close — 8 hours at 72W needs 576 Wh. With inverter losses (~70% usable), a 500Wh station runs it for about 5 hours. A 750Wh+ station covers a full night. | |||||
| Lasko 3733 (20-inch Box Fan) | 80W | 160W | Safe | ~33.6h | Engineering Est. |
Show expert analysisTechnical: **Running load:** 80 W (high speed, top of 50-80W range). **Surge:** 160 W (estimated 2x startup). **Voltage:** 120 V AC. Variable speed range means actual draw depends on setting — low speed draws as little as 50W. Field note: If running on battery, use a lower speed setting. Dropping from high (80W) to low (50W) extends runtime by 60% — a meaningful difference on a single charge. How long can I run this fan on low speed? At 50W on low speed, a 1000Wh power station (700Wh usable) runs it for about 14 hours. High speed (80W) cuts that to about 9 hours. | |||||
How This Pairing Performs Across Our Database
This unit ranks #31 of 33 compatible generators for this device by buffered margin (Overkill class).
How Box Fan (20-inch) Performs Across 33 Tested Generators
33 of 33 generators are SAFE+TIGHT for Box Fan (20-inch).
33
Safe+Tight
Safe 33 (100%)
Power Comparison: Anker SOLIX F3800 vs Top Alternatives for Box Fan (20-inch)
Anker SOLIX F3800 Safe Overkill
Current unit
Running 6,000W
Surge 9,000W
Fit class uses buffered needs (running and surge) for this device.
Specs & Surge Analysis
Heating & Cooling
Box Fan (20-inch)
Hot Weather Ventilation
Select Your Model:
83W
Running
166W
Surge
120V
Required
True Surge™ Analysis
Safety Buffer: +15% Running Power Usage 2% Utilization
96W required 6000W Capacity
5904W headroom
Surge/Startup Peak 2% Utilization
191W required 9000W Capacity
8809W headroom
Voltage Match 120V ↔ 120V/240V ✓
⚠️
Before You Buy: Connection Check
Installation warning
These systems are often hardwired to a home panel. To run them from a portable station, you may need a transfer switch installed by an electrician. You cannot just plug it in.
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Generator Insights
The 9000W surge rating can handle typical compressor-based appliances like central air conditioners, well pumps, and refrigerators during startup. This capacity can support multiple simultaneous high-draw devices once running loads stabilize. Expect reliable operation for tools, HVAC systems, and other inductive loads that demand short-duration power spikes.
This unit employs LFP chemistry with a 3840Wh capacity, designed for stable discharge under high-demand conditions. The architecture supports both sustained and transient loads within rated limits. Source: Anker SOLIX F3800 User Manual v1.1 (Specifications) (OEM documentation).
Extend Runtime with Solar
Keep your Box Fan (20-inch) running with solar • MPPT: 11– 60V • Max: 2400W
Official Anker
100W Panel
1 Hour Sun =
+0.8h per sun hour
MC4 -> XT60
Full in ~54.9h Adapter required: MC4 -> XT60.
Smart Value EcoFlow
400W Panel
1 Hour Sun =
Runs Indefinitely
MC4 -> XT60
Full in ~13.7h Adapter required: MC4 -> XT60.
Smart Value EcoFlow
400W Panel
1 Hour Sun =
Runs Indefinitely
MC4 -> XT60
Full in ~13.7h Adapter required: MC4 -> XT60.
Technical Analysis
Spec-Based • No GuaranteesTechnical Breakdown
Running load: 83 W (worst case). Surge: 166 W (2x startup, small fan motor policy for shaded-pole motors). Voltage: 120 V AC required. Box fans use small shaded-pole motors with a brief 2x inrush at startup — much lower than the 3x NEC standard for larger motors.
Expected Behavior
Estimated runtime: ~32.4h. Draws 72-83W steady depending on model. 8 hours daily operation consumes 576-664 Wh. Startup inrush is brief (<1 second) and typically 2x running.
Field Note
Box fans are ideal off-grid appliances. Low running watts, minimal surge, and long daily use. Size your power station for runtime (capacity in Wh), not wattage — any 200W+ station handles the load.
Frequently Asked Questions
Can the Anker SOLIX F3800 power a Box Fan (20-inch)?
Yes. The Anker SOLIX F3800 provides 6000W running / 9000W surge. The Box Fan (20-inch) needs 96W / 191W (including 15% buffer). That leaves 5904W of running headroom and 8809W of surge margin.
How long will the Anker SOLIX F3800 run a Box Fan (20-inch)?
Approximately 32.4 hours, based on the Box Fan (20-inch)'s 83W draw and the Anker SOLIX F3800's 3840Wh capacity (70% usable after real-world losses).
What Else Can You Run?
With 1040W allocated to the Box Fan (20-inch), the Anker SOLIX F3800 still has ~3677W of margin. These devices could run simultaneously:
🌀
Box Fan (Medium)
60W
💡
LED Lamp
10W
🔥
Space Heater (Eco)
750W
📺
55' LED TV
80W
🌬️
Nebulizer
60W
❄️
Medical Fridge
80W
Power Tip: To get the most out of your Anker SOLIX F3800, 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 Box Fan (20-inch)
Ranked by budget, runtime, and overall compatibility.
Technical Sourcing & Verification
ID: anker-solix-f3800-box-fan-20inch 🏛️ Device Data Source
Engineering Est. Safety Factor Applied
Derived from variant list (max of variants). Running worst case = Lasko B20200 (83W OEM). Surge worst case = Lasko B20200 (166W). Small fan motor policy: 2x startup for shaded-pole motors.
⚡ Generator Specs Source
OEM Verified
Anker SOLIX F3800 User Manual v1.1 (Specifications)
Methodology informed by US Department of Energy (DOE) & EIA references where applicable.
Our methodology →
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