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| Specification | A-iPower AP5000 | Yamaha EF5500DE |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 4000 W | Winner: Winner: 4500 W |
| Starting watts | 5000 W | Winner: Winner: 5500 W |
| Noise (lower limit) | Winner: Winner: 68 dB | 74.1 dB |
| Weight | Not available | Winner: Winner: 238.1 lbs |
| Run time @50% load | Not available | Winner: Winner: 13.5 h |
| Run time @25% load | 13.5 h | Not available |
| Fuel tank | 4 gal | 6.9 gal |
| Fuel gauge | No | Yes |
| Approx. dimensions (L × W × H) | 23.4 x 18.3 x 19.9 inch | 29.1 x 29 x 31.5 in |
| Electrical | ||
| Voltage (AC) | 120/240V | 120/240V 60 Hz |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | No | Yes |
| Covered outlets | No | No |
| Automatic Voltage Regulation | No | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | 223cc OHV 4 stroke engine | Yamaha MZ360 OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil Start | Recoil, Electric |
| Warranty | ||
| Warranty | Not available | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 4500 W |
| Starting watts | Not available | 5500 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 | 13.5 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | Not available | true |
| Compliance | Not available | CARB, EPA |
| Security | Not available | Not available |
| Spark arrestor | No | Yes |
| Neutral | Not available | true |
| UPC | 851217006077 | 765053823098 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 4500 |
| Starting Watts (Gasoline) | Not available | 5500 |
| Runtime @ 50% Load (Gasoline) | Not available | 13.5 |
| AC Outlet Types | 20A – 120V household duplex (5-20R) and 30A-120/240 Twistlock (L14-30R) | 2x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | Single Cylinder 223cc - 4 Stroke OHV | OHV 4-stroke |
| Engine Displacement | 223 | 358 |
| Cylinder Sleeve | Cast Iron Sleeve | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | Not available | 13.5 |
| Controls & display | ||
| Display Type | Digital Hour Meter | Data center |
| Safety & compliance | ||
| Overload Protection System | Not available | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | folding handle and wheels | Not available |
| Documentation | Not available | Data center |
| Included Accessories | Tool Kit | Tool kit, battery, and wheel kit |
| Warranty & identification | ||
| Residential Warranty | 2 | Not available |
| Part Number | AP5000 | EF55DEX |
| Additional specs | ||
| Summary | The A-iPower AP5000 is a 4000-watt running generator built around a 223cc OHV gasoline engine. It delivers 5000 peak watts at startup, making it capable of powering multiple household appliances simultaneously during outages or outdoor work. The 4-gallon fuel tank stretches to 13.5 hours of runtime at 25% load, which means light-duty applications like charging devices, running fans, or powering small tools can operate through an entire night on a single tank. At full load, refueling becomes more frequent, but the dual 120V and 120/240V outlets give users flexibility to run both standard household devices and heavier equipment like air compressors or welders.
This unit targets homeowners, campers, and job site workers who prioritize straightforward functionality over advanced features. The recoil start system and basic digital hour meter reflect a no-frills design philosophy. The 68 dBA noise level sits at the edge of acceptable for residential areas, meaning placement matters. Neighbors within 50 feet will notice it running. | 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. |