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Genmax GM2200i vs Champion 201317

Genmax GM2200i vs Champion 201317

Comparing the Genmax GM2200i and Champion 201317 inverter generators. See how they differ on runtime, noise, warranty, and real-world use cases.

  • Genmax GM2200i
  • Champion Power Equipment 201317

Comparison Overview

AJ Quick
Analysis by AJ Quick
Mechanical engineer and founder of RightGenerator

These two portable inverter generators sit in the same lightweight class, but the Champion 201317 edges ahead in several practical areas. It delivers 1850 running watts and 2500 starting watts compared to the Genmax GM2200i's 1800 running watts and 2200 starting watts, giving it a meaningful 300-watt advantage on startup surges. That extra headroom matters when you're firing up a small air conditioner or a power tool with a motor.

The Champion is also noticeably quieter at 53 dB versus the Genmax's 58 dB, which is a real difference to your ears since decibels are measured on a logarithmic scale. It weighs slightly less at 39.7 lbs compared to 41.9 lbs, and it runs significantly longer at quarter load, stretching to 11.5 hours versus the Genmax's 8 hours. Perhaps most importantly, Champion backs its unit with a 3-year warranty, tripling the Genmax's 1-year coverage.

The Genmax GM2200i does hold a slightly higher overall score of 5.72 compared to the Champion's 5.44, which may reflect pricing or value considerations. Buyers who prioritize brand familiarity, longer warranty protection, and quieter operation will lean toward the Champion, while those looking for a budget-friendly inverter generator may find the Genmax appealing.

Key takeaways

  • Champion 201317 delivers 2500 starting watts versus the Genmax GM2200i's 2200 starting watts
  • Champion runs 11.5 hours at 25% load, outpacing the Genmax's 8 hours significantly
  • Champion operates at 53 dB, noticeably quieter than the Genmax at 58 dB
  • Champion offers a 3-year warranty compared to the Genmax's 1-year coverage
  • Genmax GM2200i scores slightly higher overall at 5.72 versus Champion's 5.44
  • Both are lightweight gasoline inverter generators under 42 lbs for easy portability

Best use cases

Choose the Genmax GM2200i if you're shopping on a tight budget and need a basic inverter generator for occasional use. Its 1800 running watts will handle essentials like charging devices, running lights, and powering a small TV or fan. The 8-hour runtime at 25% load is respectable for weekend camping trips or short tailgating sessions. If you don't plan to rely on the generator heavily and want to spend less upfront, the GM2200i gets the job done. Just keep in mind that the 1-year warranty means you're on your own sooner if something goes wrong, so this is a better fit for light, infrequent use rather than a workhorse role.

Choose the Champion 201317 if you want a more well-rounded package with fewer compromises. The 2500 starting watts give you a better shot at running small appliances with motors, like a compact RV air conditioner or a sump pump during a power outage. At 53 dB, it's quiet enough to use at a campsite without drawing complaints from neighbors, and the 11.5-hour runtime at quarter load means you can run it overnight without refueling. The 3-year warranty from Champion, a well-established brand in the portable power space, adds a layer of confidence that's hard to ignore.

For RV owners, the Champion's combination of lower noise, lighter weight, and longer runtime makes it the more practical travel companion. For home emergency backup, the extra starting watts and extended warranty tip the scales in the same direction. The Genmax is best suited for buyers who need something simple and affordable for light-duty tasks where long runtimes and robust after-sale support aren't top priorities.

Verdict & recommendation

If your priority is getting the lowest possible price on a functional inverter generator for light, occasional use, the Genmax GM2200i is a reasonable pick. It covers the basics and keeps things simple.

If you value quieter operation, longer runtime, stronger surge capacity, and a warranty that actually lasts, the Champion 201317 is the stronger overall package. It gives you more watts, more hours per tank, less noise, and three times the warranty coverage, all while weighing about two pounds less.

For most buyers, the Champion represents the better long-term investment. But if budget is the deciding factor and your power needs are modest, the Genmax still earns its place as a capable entry-level option.

Last updated July 13, 2026

  • Model GM2200i
    Model GM2200i

    Genmax 1,800W Gas Generator

    1800W
    Running
    58 dB
    Noise
    View details
  • Model 201317
    Model 201317

    Champion Power Equipment 1,850W Gas Generator

    1850W
    Running
    53 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
SpecificationGenmax GM2200iChampion Power Equipment 201317
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
1800 W
Winner: Winner: 1850 W
Starting watts
2200 W
Winner: Winner: 2500 W
Noise (lower limit)
58 dB
Winner: Winner: 53 dB
Weight
41.9 lbs
Winner: Winner: 39.7 lbs
Run time @50% load
Winner: Winner: 6 h
Not available—
Run time @25% load
8 h
11.5 h
Fuel tank
1 gal
1.05 gal
Fuel gaugeNoYes
Approx. dimensions (L × W × H)
18.9 x 11.4 x 17.3
17.6 x 12.6 x 18.1
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
12
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
<3% %
<3% %
Engine
Engine
79.7 cc Dinking OHV 4-stroke
80 cc OHV 4-stroke
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil
Warranty
Warranty
1 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
1800 W
1850 W
Starting watts
2200 W
2500 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
6 h
Not available—
Run time @25% load
8 h
11.5 h
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
EPA, ANSI/PGMA G300-2023
EPA, ANSI/PGMA G300-2023
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Not available—
Floating
UPC
738349925141
817198027173
Core / High-priority specs
Running Watts (Gasoline)
1800
1850
Starting Watts (Gasoline)
2200
2500
Runtime @ 50% Load (Gasoline)
6
Not available—
Runtime @ 25% Load (Gasoline)
8
11.5
AC Outlet Types
1x Duplex 120V 20A (5-20R)
1x Duplex 120V 20A (5-20R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Dinking OHV 4-stroke
OHV 4-stroke
Engine Displacement
79.7
80
Engine Oil Type
10W-30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
8
11.5
Runtime @ 50% Load (Gasoline)
6
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Low oil and overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Funnel and tool kit
Oil, funnel, and tool kit
Additional specs
Summary
The GENMAX GM2200i is a 2200-watt gasoline inverter generator featuring a 79.7cc engine, CO detection, and parallel capability, designed for quiet and efficient power supply.
The Champion Power Equipment 201317 is a 2500-watt portable inverter generator featuring CO Shield® carbon monoxide auto shutoff system, designed for camping, tailgating, and backup power for essentials.
  • Most Powerful
    Champion Power Equipment 201317
    1850W running
  • Quietest
    Champion Power Equipment 201317
    53 dB
  • Longest Runtime
    Genmax GM2200i
    6h at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM2200i
Store links
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Champion Power Equipment 201317
Store links
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