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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.

  • A-iPower SUA4300iD
  • Cummins Onan P2500i
  • Model SUA4300iD
    Model SUA4300iD

    A-iPower 3,450W Dual-Fuel Generator

    3450W
    Running
    62 dB
    Noise
    View details
  • Model Onan P2500i
    Model Onan P2500i

    Cummins 2,200W Gas Generator

    2200W
    Running
    52 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
SpecificationA-iPower SUA4300iDCummins Onan P2500i
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterYesYes
Parallel capableYesYes
RV readyNoNo
Running watts
Winner: Winner: 3450 W
2200 W
Starting watts
Winner: Winner: 4300 W
2500 W
Noise (lower limit)
62 dB
Winner: Winner: 52 dB
Weight
54.8 lbs
Winner: Winner: 48 lbs
Run time @50% load
Not available—
Winner: Winner: 8 h
Run time @25% load
7.5 h
10 h
Fuel tank
1.6 gal
1 gal
Fuel gaugeYesYes
Approx. dimensions (L × W × H)
22.2 x 14.4 x 20.3
19.8 x 10.5 x 18.3
Electrical
Voltage (AC)
120
120
Voltage (DC)
12
12
GFCI outletsNoNo
Covered outletsYesYes
Automatic Voltage RegulationYesYes
THD
Not available—
<3% %
Engine
Engine
149 cc OHV 4-stroke
98 cc Ducar OHV 4-stroke engine
Alternator
Not available—
Not available—
Starting system
Recoil
Recoil
Warranty
Warranty
3 years
3 years
Power by fuel
GasolineNot available—Not available—
Running watts
3450 W
2200 W
Starting watts
4300 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
Not available—
8 h
Run time @25% load
7.5 h
10 h
PropaneNot available—Not available—
Running watts
3100 W
Not available—
Starting watts
3900 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
11 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
true
Compliance
CARB, EPA, ANSI/PGMA G300-2023
CARB, EPA
Security
Not available—
Not available—
Spark arrestorYesYes
Neutral
true
Floating
UPC
850016881649
690781007918
Core / High-priority specs
Running Watts (Gasoline)
3450
2200
Running Watts (Propane)
3100
Not available—
Starting Watts (Gasoline)
4300
2500
Starting Watts (Propane)
3900
Not available—
Runtime @ 50% Load (Gasoline)
Not available—
8
Runtime @ 25% Load (Gasoline)
7.5
10
Runtime @ 25% Load (Propane)
11
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
1x Duplex 120V 20A (5-20R)
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
Ducar OHV 4-stroke
Engine Displacement
149
98
Engine Oil Type
Not available—
SAE 10W30
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
7.5
10
Runtime @ 50% Load (Gasoline)
Not available—
8
Safety & compliance
Overload Protection System
Low oil and overload protection
Low oil and overload protection
Low Oil ProtectionNoYes
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Oil, funnel, tool kit, propane hose, dual port USB adapter, RV adapter, and battery charging cables
Oil, funnel, and tool kit
Warranty & identification
Residential Warranty
3
Not available—
Commercial Warranty
3
Not available—
Additional specs
Summary
The A-iPower SUA4300iD is a 3,450-watt dual-fuel generator that runs on either gasoline or propane. This flexibility means users can refuel based on what's available, whether that's a gas station during an outage or a propane tank for extended storage. The 4,300-watt peak output handles startup surges from refrigerators, air compressors, and power tools without stumbling. At 54.8 lbs, this unit moves easily into trucks, basements, or storage closets, making it practical for homeowners, campers, and job site crews who need power without the burden of a stationary installation.
The Cummins Onan P2500i is a 2200-watt inverter generator built for users who need portable power without sacrificing runtime or noise control. At 48 pounds and measuring 19.8 by 10.5 by 18.3 inches, this unit bridges the gap between true portability and practical capacity. It can run a microwave, small refrigerator, or circular saw continuously, making it suitable for camping trips, job sites, tailgating, and emergency backup. The 1-gallon fuel tank delivers 10 hours at 25 percent load and 8 hours at 50 percent load, meaning most users refuel once per day rather than multiple times. The inverter topology produces clean power with less than 3 percent THD, which protects laptops, phone chargers, and sensitive electronics from voltage spikes. Cummins backs this unit with a 3-year warranty, longer than the 2.4-year average for comparable inverter generators. The 52 dBA noise level sits between a normal conversation and light traffic, allowing operation in noise-restricted campgrounds and residential neighborhoods without drawing complaints.
  • Most Powerful
    A-iPower SUA4300iD
    3450W running
  • Quietest
    Cummins Onan P2500i
    52 dB
  • Longest Runtime
    Cummins Onan P2500i
    8h at 50% load
Where to buy
Prices can change. We update these automatically.
A-iPower SUA4300iD
Store links
No links yet.
Cummins Onan P2500i
Store links
No links yet.
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