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Compare Generators Side-by-Side

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

  • Genmax GM5500XiD
  • Powermate PM4500DF
  • Model GM5500XiD
    Model GM5500XiD

    Genmax 4,000W Dual-Fuel Generator

    4000W
    Running
    68 dB
    Noise
    View details
  • Model PM4500DF
    Model PM4500DF

    Powermate 3,600W Dual-Fuel Generator

    3600W
    Running
    0 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 GM5500XiDPowermate PM4500DF
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Dual-Fuel
InverterYesNo
Parallel capableYesNo
RV readyYesNo
Running watts
Winner: Winner: 4000 W
3600 W
Starting watts
Winner: Winner: 5500 W
4500 W
Noise (lower limit)
Winner: Winner: 68 dB
0 dB
Weight
Winner: Winner: 68 lbs
109 lbs
Run time @50% load
Not available—
Winner: Winner: 10.5 h
Run time @25% load
11 h
19 h
Fuel tank
2.2 gal
5 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
23.1 x 18.5 x 17.8
26.3 x 22.9 x 21.5
Electrical
Voltage (AC)
120
120
Voltage (DC)
5
Not available—
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
≤3% %
Not available—
Engine
Engine
160 cc OHV 4-stroke engine.
Generac OHV 4-stroke 224 cc
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil
Warranty
Warranty
1 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
4000 W
3600 W
Starting watts
5500 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
8 h
10.5 h
Run time @25% load
11 h
Not available—
PropaneNot available—Not available—
Running watts
3600 W
3240 W
Starting watts
4950 W
Not available—
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
12.5 h
7 h
Run time @25% load
17.5 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
false
Compliance
CARB, EPA, ANSI/PGMA G300-2023
EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
Floating
Not available—
UPC
860013299040
696471086386
Core / High-priority specs
Running Watts (Gasoline)
4000
3600
Running Watts (Propane)
3600
3240
Starting Watts (Gasoline)
5500
4500
Starting Watts (Propane)
4950
Not available—
Runtime @ 50% Load (Gasoline)
8
10.5
Runtime @ 50% Load (Propane)
12.5
7
Runtime @ 25% Load (Gasoline)
11
Not available—
Runtime @ 25% Load (Propane)
17.5
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
2x Duplex 120V 20A (5-20R) GFCI; 1x 120V 30A (L5-30R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke engine
Generac OHV 4-stroke
Engine Displacement
160
224
Engine Oil Type
SAE 10W/30
10W-30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
11
Not available—
Runtime @ 50% Load (Gasoline)
8
10.5
Runtime @ 50% Load (Propane)
12.5
7
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesYes
Included equipment
Included Accessories
Oil, funnel, tool kit, propane hose, and wheel kit
Oil, propane hose, and wheel kit
Warranty & identification
Commercial Warranty
Not available—
3
Additional specs
Summary
The Genmax GM5500XiD is a 4000-watt dual-fuel inverter generator that handles essential household loads, power tools, and RV systems simultaneously. Running on gasoline or propane, it delivers clean 3% THD output safe for laptops and televisions. At 68 pounds with a wheel kit included, this unit moves easily between storage and deployment.
The Powermate PM4500DF is a durable and compact dual fuel portable generator, ideal for home use or DIY projects. It offers 4500 starting watts and 3600 running watts on gasoline, and features a steel frame with integrated wheels and handle for easy transport.
  • Most Powerful
    Genmax GM5500XiD
    4000W running
  • Quietest
    Genmax GM5500XiD
    68 dB
  • Longest Runtime
    Powermate PM4500DF
    10.5h at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM5500XiD
Store links
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Powermate PM4500DF
Store links
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