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

  • Briggs & Stratton 30814 P4500 PowerSmart
  • Predator 72903
  • Model 30814 P4500 PowerSmart
    Model 30814 P4500 PowerSmart

    Briggs & Stratton 3,700W Gas Generator

    3700W
    Running
    60 dB
    Noise
    View details
  • Model 72903
    Model 72903

    Predator 1,400W Gas Generator

    1400W
    Running
    68.9 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
SpecificationBriggs & Stratton 30814 P4500 PowerSmartPredator 72903
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterYesNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 3700 W
1400 W
Starting watts
Winner: Winner: 4500 W
1800 W
Noise (lower limit)
Winner: Winner: 60 dB
68.9 dB
Weight
104 lbs
Winner: Winner: 60 lbs
Run time @50% load
Not available
Winner: Winner: 9.5 h
Run time @25% load
16 h
Not available
Fuel tank
3.5 gal
Not available
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
24.5 x 17.6 x 20.36
18.3 x 14 x 16
Electrical
Voltage (AC)
120
120V
Voltage (DC)
5
Not available
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
3 %
Not available
Engine
Engine
Briggs & Stratton OHV 4-stroke 224 cc
Not available
Alternator
Not available
Not available
Starting system
Recoil, Electric, Remote
Not available
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3700 W
Not available
Starting watts
4500 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
Not available
Not available
Run time @25% load
16 h
Not available
Other
Data center
Not available
Not available
Indicators
true
true
Compliance
CARB, EPA
Not available
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Floating
Not available
UPC
11675308148
Not available
Core / High-priority specs
Running Watts (Gasoline)
3700
Not available
Starting Watts (Gasoline)
4500
Not available
Runtime @ 25% Load (Gasoline)
16
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
Not available
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
Not available
Engine Displacement
224
98
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
16
Not available
Controls & display
Display Type
Digital
Not available
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Not available
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric, Remote
Not available
Included Accessories
Oil, funnel, key fob, and battery
Not available
Warranty & identification
Commercial Warranty
3
Not available
Part Number
30814
Not available
Additional specs
Summary
The Briggs & Stratton 30814 P4500 PowerSmart is a 3700-watt inverter generator built for users who need reliable backup power without the noise of traditional models. At 60 decibels, it runs quiet enough for residential neighborhoods and campgrounds, making it suitable for homeowners managing outages, campers extending trips, and outdoor enthusiasts who cannot tolerate generator noise. The 4500-watt peak output handles startup surges for larger appliances like air conditioning units or power tools, while the 3700-watt running capacity sustains continuous operation. With a 3.5-gallon fuel tank and 16-hour runtime at 25% load, users can power essential devices through a full night or longer without refueling. The inverter technology produces only 3% THD, which means laptops, smartphones, and other sensitive electronics charge safely without risk of voltage spikes or damage.
The PREDATOR® 1800 Watt Portable Generator is a compact and lightweight gas-powered generator designed for low-power applications, featuring CO SECURE® carbon monoxide shutdown for enhanced safety.
  • Most Powerful
    Briggs & Stratton 30814 P4500 PowerSmart
    3700W running
  • Quietest
    Briggs & Stratton 30814 P4500 PowerSmart
    60 dB
  • Longest Runtime
    Predator 72903
    9.5h at 50% load
Where to buy
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Briggs & Stratton 30814 P4500 PowerSmart
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Predator 72903
Store links
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