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.
- Yamaha EF5500DE
- Aceup Energy AI4000s
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).
| Specification | Yamaha EF5500DE | Aceup Energy AI4000s |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Not available |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | No |
| Running watts | Winner: Winner: 4500 W | 3200 W |
| Starting watts | Winner: Winner: 5500 W | 4000 W |
| Noise (lower limit) | 74.1 dB | Winner: Winner: 55 dB |
| Weight | Winner: Winner: 238.1 lbs | Not available |
| Run time @50% load | Winner: Winner: 13.5 h | 8 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 6.9 gal | 1.32 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 29.1 x 29 x 31.5 in | Not available |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120V |
| Voltage (DC) | Not available | 12V |
| GFCI outlets | Yes | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | Not available |
| Engine | ||
| Engine | Yamaha MZ360 OHV 4-stroke | 4-stroke OHV engine |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Not available |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 4500 W | 3200 W |
| Starting watts | 5500 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 | 13.5 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | EPA compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | true | Not available |
| UPC | 765053823098 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4500 | 3200 |
| Starting Watts (Gasoline) | 5500 | 4000 |
| Runtime @ 50% Load (Gasoline) | 13.5 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R) | 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 | 358 | 149 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 13.5 | Not available |
| Controls & display | ||
| Display Type | Data center | Intelligent gauge |
| Idle Control System | Not available | Economic mode to save fuel |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Starting Components | Not available | Recoil start |
| Documentation | Data center | Not available |
| Included Accessories | Tool kit, battery, 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 | EF55DEX | AI4000s |
| Additional specs | ||
| Summary | The Yamaha EF5500DE is a versatile dual 120/240 volt generator, ideal for emergency backup power for home, cottage, or business, as well as primary power on job sites. It features a 358cc OHV engine, electric start, and offers 5500 watts maximum AC output with outstanding fuel efficiency. | 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 PowerfulYamaha EF5500DE4500W running
- QuietestAceup Energy AI4000s55 dB
- Longest RuntimeYamaha EF5500DE13.5h at 50% load
Where to buy
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Yamaha EF5500DE
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Aceup Energy AI4000s
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