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Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.

  • Genmax GM3300i
  • Sportsman GENMAX1500
  • Model GM3300i
    Model GM3300i

    Genmax 3,000W Gas Generator

    3000W
    Running
    62 dB
    Noise
    View details
  • Model GENMAX1500
    Model GENMAX1500

    Sportsman 900W Gas Generator

    900W
    Running
    65 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 GM3300iSportsman GENMAX1500
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 3000 W
900 W
Starting watts
Winner: Winner: 3300 W
1500 W
Noise (lower limit)
Winner: Winner: 62 dB
65 dB
Weight
47.4 lbs
Winner: Winner: 45 lbs
Run time @50% load
4.5 h
Winner: Winner: 8 h
Run time @25% load
6 h
Not available
Fuel tank
1 gal
1 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
18.9 x 11.4 x 17.3
16 x 14 x 16
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
12
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available
Not available
Engine
Engine
145 cc Dinking OHV 4-stroke
72 cc 2-stroke
Alternator
Not available
Not available
Starting system
Recoil
Recoil
Warranty
Warranty
1 years
1 years
Power by fuel
GasolineNot availableNot available
Running watts
3000 W
900 W
Starting watts
3300 W
1500 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
4.5 h
8 h
Run time @25% load
6 h
Not available
Other
Data center
Not available
Not available
Indicators
true
false
Compliance
EPA, ANSI/PGMA G300-2023
EPA
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Floating
Not available
UPC
768494056087
27077805444
Core / High-priority specs
Running Watts (Gasoline)
3000
900
Starting Watts (Gasoline)
3300
1500
Runtime @ 50% Load (Gasoline)
4.5
8
Runtime @ 25% Load (Gasoline)
6
Not available
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
1x Duplex 120V 20A (5-20R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Dinking OHV 4-stroke
2-stroke
Engine Displacement
145
72
Engine Oil Type
10W-30
Not available
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
6
Not available
Runtime @ 50% Load (Gasoline)
4.5
8
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Not available
Low Oil ProtectionYesNo
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Funnel and tool kit
Tool kit and battery charging cables
Warranty & identification
Part Number
GE-3300A
Not available
Additional specs
Summary
The Genmax GM3300i is a 3000-watt gasoline inverter generator built for portability and clean power. At 47.4 lbs, it moves easily between campsites, job sites, and homes. The 3300-watt peak output handles startup surges on power tools and appliances, while the inverter technology protects laptops and phones from voltage spikes.
The Sportsman GENMAX1500 is a portable 2-cycle gasoline generator offering 1,500 surge watts and 900 running watts, suitable for powering common household appliances and power tools.
  • Most Powerful
    Genmax GM3300i
    3000W running
  • Quietest
    Genmax GM3300i
    62 dB
  • Longest Runtime
    Sportsman GENMAX1500
    8h at 50% load
Where to buy
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Genmax GM3300i
Store links
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Sportsman GENMAX1500
Store links
No links yet.
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