Skip to content

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.

  • Ryobi RY904500
  • Aceup Energy AI4000s
  • Model RY904500
    Model RY904500

    Ryobi 3,600W Gas Generator

    3600W
    Running
    82 dB
    Noise
    View details
  • Model AI4000s
    Model AI4000s

    Aceup Energy 3,200W Inverter Generator

    3200W
    Running
    55 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
SpecificationRyobi RY904500Aceup Energy AI4000s
General
Product type
Generator
Not available
Fuel
Gasoline
Not available
InverterNoYes
Parallel capableNoYes
RV readyYesNo
Running watts
Winner: Winner: 3600 W
3200 W
Starting watts
Winner: Winner: 4500 W
4000 W
Noise (lower limit)
82 dB
Winner: Winner: 55 dB
Weight
Winner: Winner: 115 lbs
Not available
Run time @50% load
Winner: Winner: 10 h
8 h
Run time @25% load
Not available
Not available
Fuel tank
4 gal
1.32 gal
Fuel gaugeNoNo
Approx. dimensions (L × W × H)
24 x 26 x 20
Not available
Electrical
Voltage (AC)
120
120V
Voltage (DC)
Not available
12V
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available
Not available
Engine
Engine
212 cc OHV 4-stroke
4-stroke OHV engine
Alternator
Not available
Not available
Starting system
Recoil
Not available
Warranty
Warranty
3 years
2 years
Power by fuel
GasolineNot availableNot available
Running watts
3600 W
3200 W
Starting watts
4500 W
4000 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
10 h
Not available
Run time @25% load
Not available
Not available
Other
Data center
Not available
Not available
Indicators
false
true
Compliance
EPA
EPA compliant
Security
Not available
Not available
Spark arrestorYesNo
Neutral
Not available
Not available
UPC
46396056023
Not available
Core / High-priority specs
Running Watts (Gasoline)
3600
3200
Starting Watts (Gasoline)
4500
4000
Runtime @ 50% Load (Gasoline)
10
Not available
AC Outlet Types
2x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R)
One 20A outlet, one L5-30R Twist-Lock receptacle
Electrical & power
Frequency
60
60
Engine & construction
Engine Type
OHV 4-stroke
4-stroke OHV engine
Engine Displacement
212
149
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
10
Not available
Controls & display
Display Type
Not available
Intelligent gauge
Idle Control System
Not available
Economic mode to save fuel
Safety & compliance
Overload Protection System
Low oil and overload protection
Not available
Carbon Monoxide MonitoringYesNo
Included equipment
Starting Components
Not available
Recoil start
Included Accessories
Oil and wheel kit
Oil funnel * 2; A bottle of Oil; Spark plug wrench
Warranty & identification
Residential Warranty
Not available
2
Commercial Warranty
Not available
2
Part Number
Not available
AI4000s
Additional specs
Summary
The Ryobi RY904500 is a 3600-watt portable gasoline generator, delivering 4500 starting watts. It features a 212cc OHV engine, a 4-gallon fuel tank providing up to 10 hours of runtime at 50% load, and is RV-ready with a 120V 30A RV outlet.
The Aceup Energy AI4000s is a 3200-watt rated generator that operates on fuel and features inverter technology, making it suitable for various power needs.
  • Most Powerful
    Ryobi RY904500
    3600W running
  • Quietest
    Aceup Energy AI4000s
    55 dB
  • Longest Runtime
    Ryobi RY904500
    10h at 50% load
Where to buy
Prices can change. We update these automatically.
Ryobi RY904500
Store links
No links yet.
Aceup Energy AI4000s
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.