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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.

  • Briggs & Stratton 30814 P4500 PowerSmart
  • AIVOLT VS12000411
  • Model 30814 P4500 PowerSmart
    Model 30814 P4500 PowerSmart

    Briggs & Stratton 3,700W Gas Generator

    3700W
    Running
    60 dB
    Noise
    View details
  • Model VS12000411
    Model VS12000411

    AIVOLT 9,000W Dual-Fuel Inverter Generator

    9000W
    Running
    60 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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationBriggs & Stratton 30814 P4500 PowerSmartAIVOLT VS12000411
General
Product type
Generator
Not available—
Fuel
Gasoline
Dual-Fuel
InverterYesYes
Parallel capableNoYes
RV readyNoNo
Running watts
3700 W
Winner: Winner: 9000 W
Starting watts
4500 W
Winner: Winner: 11250 W
Noise (lower limit)
Winner: Winner: 60 dB
Winner: Winner: 60 dB
Weight
Winner: Winner: 104 lbs
220 lbs
Run time @50% load
Not available—
Not available—
Run time @25% load
16 h
Winner: Winner: 19 h
Fuel tank
3.5 gal
Not available—
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
24.5 x 17.6 x 20.36
28.43L x 26.38W x 29.65H
Electrical
Voltage (AC)
120
120V/240V
Voltage (DC)
5
Not available—
GFCI outletsNoYes
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
3 %
3 %
Engine
Engine
Briggs & Stratton OHV 4-stroke 224 cc
459cc 4-strokes OHV air-cooled
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Not available—
Warranty
Warranty
3 years
Not available—
Power by fuel
GasolineNot available—Not available—
Running watts
3700 W
9000 W
Starting watts
4500 W
11250 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
Not available—
Not available—
Run time @25% load
16 h
19 h
PropaneNot available—Not available—
Running watts
Not available—
8450 W
Starting watts
Not available—
10570 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
Not available—
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA
Approved by the EPA and CARB
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
Floating
Not available—
UPC
11675308148
Not available—
Core / High-priority specs
Running Watts (Gasoline)
3700
9000
Running Watts (Propane)
Not available—
8450
Starting Watts (Gasoline)
4500
11250
Starting Watts (Propane)
Not available—
10570
Runtime @ 25% Load (Gasoline)
16
19
AC Outlet Types
2x Duplex 120V 20A (5-20R)1x 120V 30A (TT-30R)
2 120V 20A 5-20R GFCI outlets, 1 120V 30A L5-30R, 1 120V/240V 30A L14-30R, 1 120V/240V 50A 14-50R
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
Briggs & Stratton OHV 4-stroke
4 Stroke
Engine Displacement
224
459
Alternator Winding Material
Not available—
100% copper
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
16
19
Outlets & connections
Transfer Switch Compatibility
Not available—
Yes
Controls & display
Display Type
Digital
LED display
Idle Control System
Not available—
Eco switch
Safety & compliance
Overload Protection System
Low oil and overload protection, CO monitoring
Built-in overload protection
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Starting Components
Recoil, Electric, Remote
Not available—
Fuel Connection Components
Not available—
LPG hose with regulator
Included Accessories
Oil, funnel, key fob, and battery
Remote controller, battery charger, oil funnel, tool kits
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 AIVOLT VS12000411 is a dual-fuel generator with a rated wattage of 9000 and a peak wattage of 11250. It features a 459cc 4-stroke OHV engine and includes electric and remote start options.
  • Most Powerful
    AIVOLT VS12000411
    9000W running
  • Quietest
    Briggs & Stratton 30814 P4500 PowerSmart
    60 dB
  • Longest Runtime
    h at 50% load
Where to buy
Prices can change. We update these automatically.
Briggs & Stratton 30814 P4500 PowerSmart
Store links
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AIVOLT VS12000411
Store links
No links yet.
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