Skip to content
Skip to main content
WEN GN400i vs Champion Power Equipment 201318

WEN GN400i vs Champion Power Equipment 201318

WEN GN400i vs Champion 201318: same 3500W output, but Champion is quieter and longer-warranty; WEN is lighter for easier transport.

  • WEN GN400i
  • Champion Power Equipment 201318

Comparison Overview

The biggest real-world difference is portability versus comfort features: the WEN GN400i is much easier to move at 66.1 lb, while the Champion Power Equipment 201318 is heavier at 92.2 lb but runs quieter at 61 dB versus 67 dB.

Power for typical household essentials is very similar because both deliver 3500 running watts. The Champion adds a bit more surge headroom at 4500 starting watts compared with 4000 starting watts on the WEN, which can help with motor-starting loads like a fridge compressor or a small pump.

Runtime data also points different directions: Champion lists 14 hours at 25% load, suggesting longer stretches between refueling for lighter loads, while the WEN lists 7 hours at 50% load, which is more representative of moderate use. Both are inverter generators, making them a better fit for sensitive electronics than conventional open-frame units.

If you want the easiest lift-and-go 3500W-class inverter, the WEN fits well; if you value quieter operation, more starting watts, and a longer warranty, the Champion is the better match.

Key takeaways

  • Both deliver 3500 running watts and inverter power for sensitive electronics.
  • Champion 201318 is quieter at 61 dB versus WEN GN400i at 67 dB.
  • WEN GN400i is lighter at 66.1 lb; Champion weighs 92.2 lb.
  • Champion provides 4500 starting watts; WEN provides 4000 starting watts.
  • Champion lists 14 hours at 25% load; WEN lists 7 hours at 50% load.
  • Champion warranty is 3 years; WEN warranty is 2 years.

Best use cases

Choose the WEN GN400i if you expect to move your generator often. At 66.1 lb, it’s the more realistic option for one-person loading into a trunk, rolling around a driveway, or stowing in a garage without feeling like a workout every time. It’s a solid fit for occasional home backup where you’ll run a few essentials (fridge, lights, router, TV) and you want 3500 running watts in an inverter package. The tradeoff is that it’s louder on paper at 67 dB, and it has less surge capacity at 4000 starting watts, so you’ll want to be a little more careful stacking multiple motor-starting appliances at once.

Choose the Champion Power Equipment 201318 if your priority is a more comfortable, longer-running experience—especially for camping, RV-style use, or neighborhoods where noise matters. It’s rated 61 dB, which is a noticeable step down in sound, and it offers 4500 starting watts for extra breathing room when compressors and power tools kick on. The listed 14 hours at 25% load also favors lighter, all-day loads like charging devices, running a small heater fan, or keeping a fridge cold without frequent refueling. The honest downside is the weight: 92.2 lb is much less convenient for solo transport, so it’s better if it can live on a cart, in a truck bed, or in a semi-permanent spot.

Both are gasoline inverter generators with the same 3500 running watts, so the decision mostly comes down to how often you’ll move it, how sensitive you are to noise, and whether you want extra surge and warranty coverage.

Verdict & recommendation

If your priority is easier handling and storage, the WEN GN400i makes more sense because 66.1 lb is far more manageable for regular loading and unloading. If your priority is a quieter campsite or a more neighbor-friendly backup setup, the Champion 201318’s 61 dB rating is the stronger fit, and its 4500 starting watts gives you a little more cushion for motor-starting loads.

Warranty can also sway the decision: Champion’s 3-year coverage may matter if you expect frequent use, while WEN’s 2-year warranty is still reasonable for occasional backup. In the end, both deliver 3500 running watts in inverter form—pick WEN for portability-first use, or Champion for quieter operation, extra surge headroom, and longer warranty support.

Last updated February 8, 2026

  • Model GN400i
    Model GN400i

    WEN 3,500W Gas Generator

    3500W
    Running
    67 dB
    Noise
    View details
  • Model 201318
    Model 201318

    Champion Power Equipment 3,500W Gas Generator

    3500W
    Running
    61 dB
    Noise
    View details
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationWEN GN400iChampion Power Equipment 201318
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyYesYes
Running watts
Winner: Winner: 3500 W
Winner: Winner: 3500 W
Starting watts
4000 W
Winner: Winner: 4500 W
Noise (lower limit)
67 dB
Winner: Winner: 61 dB
Weight
Winner: Winner: 66.1 lbs
92.2 lbs
Run time @50% load
Winner: Winner: 7 h
Not available
Run time @25% load
Not available
14 h
Fuel tank
1.85 gal
2.25 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
19.8 x 13.8 x 18.9
23.2 x 17.7 x 20.1
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
12
GFCI outletsNoNo
Covered outletsNoYes
Automatic Voltage RegulationYesYes
THD
under 1.2% %
3 %
Engine
Engine
212 cc OHV 4-stroke
212 cc OHV 4-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
2 years
3 years
Power by fuel
GasolineNot availableNot available
Running watts
3500 W
3500 W
Starting watts
4000 W
4500 W
Running amps (120V)
Not available
Not available
Running amps (240V)
Not available
Not available
Peak amps (120V)
Not available
Not available
Peak amps (240V)
Not available
Not available
Run time @50% load
7 h
Not available
Run time @25% load
Not available
14 h
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
EPA
EPA, ANSI/PGMA G300-2023
Security
Not available
Not available
Spark arrestorYesYes
Neutral
Floating
Floating
UPC
44459991694
817198027180
Core / High-priority specs
Running Watts (Gasoline)
3500
3500
Starting Watts (Gasoline)
4000
4500
Runtime @ 50% Load (Gasoline)
7
Not available
Runtime @ 25% Load (Gasoline)
Not available
14
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
212 cc OHV 4-stroke
Engine Displacement
212
212
Engine Oil Type
Not available
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
Not available
14
Runtime @ 50% Load (Gasoline)
7
Not available
Safety & compliance
Overload Protection System
Low oil, overload and low fuel protection.
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringNoYes
Included equipment
Starting Components
Not available
Oil, funnel, and tool kit
Included Accessories
Not available
Oil, funnel, and tool kit
Warranty & identification
Commercial Warranty
Not available
3
Additional specs
Summary
The WEN GN400i is a 4000-watt open frame inverter generator designed to provide clean and quiet portable power, suitable for sensitive electronics and RV use.
The Champion Power Equipment 4500-Watt Inverter Generator with CO Shield® is ultra-quiet and ideal for camping, tailgating, powering items around the RV or providing backup for your essentials.
  • Most Powerful
    WEN GN400i
    3500W running
  • Quietest
    Champion Power Equipment 201318
    61 dB
  • Longest Runtime
    WEN GN400i
    7h at 50% load
Where to buy
Prices can change. We update these automatically.
WEN GN400i
Store links
No links yet.
Champion Power Equipment 201318
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.