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| Specification | Yamaha EF2800i | Predator 72936 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | 2500 W | Winner: Winner: 3650 W |
| Starting watts | 2800 W | Winner: Winner: 4550 W |
| Noise (lower limit) | 65 dB | Winner: Winner: 64.6 dB |
| Weight | Winner: Winner: 68 lbs | 77 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 14.7 h | Winner: Winner: 16.1 h |
| Fuel tank | 2.6 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 19.2 x 15.6 x 16.7 | 20.9 x 18.1 x 17.8 |
| Electrical | ||
| Voltage (AC) | 120 | 120V |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | No |
| Covered outlets | No | No |
| Automatic Voltage Regulation | Yes | No |
| THD | 2.5 % | Not available |
| Engine | ||
| Engine | Yamaha MZ175 OHV 4-stroke | Not available |
| Alternator | Not available | Not available |
| Starting system | Recoil | Not available |
| Warranty | ||
| Warranty | 3 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2500 W | Not available |
| Starting watts | 2800 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 | 14.7 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | Not available |
| Compliance | EPA | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Not available | Not available |
| UPC | 799530396645 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2500 | Not available |
| Starting Watts (Gasoline) | 2800 | Not available |
| Runtime @ 25% Load (Gasoline) | 14.7 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) GFCI1x 120V 30A (L5-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 171 | 223 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 14.7 | Not available |
| Safety & compliance | ||
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Additional specs | ||
| Summary | The Yamaha EF2800i is a lightweight and quiet inverter generator capable of powering a range of devices, from power tools to sensitive electronics, making it suitable for home backup, job sites, and on-the-go use. | The Predator 72936 is a 3650-watt gasoline inverter generator built to handle steady household and light commercial loads while delivering 4550 starting watts for equipment that draws surge current at startup. The inverter design protects sensitive electronics like laptops and televisions from voltage spikes. At this wattage, the unit can power a refrigerator, microwave, and several power tools simultaneously, making it suitable for RV trips, job site backup, or emergency home power during outages. |
