Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
| Specification | Briggs & Stratton 30761 Q6500 QuietPower | DuroMax XP11000iH |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Dual-Fuel |
| Inverter | Yes | Yes |
| Parallel capable | No | Yes |
| RV ready | No | Yes |
| Running watts | 5000 W | Winner: Winner: 9000 W |
| Starting watts | 6500 W | Winner: Winner: 11000 W |
| Noise (lower limit) | 66 dB | Winner: Winner: 61 dB |
| Weight | Winner: Winner: 139 lbs | 216 lbs |
| Run time @50% load | Winner: Winner: 10 h | 9 h |
| Run time @25% load | 14 h | 18 h |
| Fuel tank | 5 gal | 7.1 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 24.8 x 21.2 x 21.5 | 26.2 x 25 x 29.6 |
| Electrical | ||
| Voltage (AC) | 120/240V 60 Hz | 120/240 |
| Voltage (DC) | 5V | 48-58 |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | 3 % |
| Engine | ||
| Engine | Briggs & Stratton OHV 4-stroke 306 cc | 459 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil, Electric, Remote |
| Warranty | ||
| Warranty | 2 years | 5 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 5000 W | 9000 W |
| Starting watts | 6500 W | 11000 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 | 9 h |
| Run time @25% load | 14 h | 18 h |
| Propane | Not available | Not available |
| Running watts | Not available | 8550 W |
| Starting watts | Not available | 10450 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 | 4 h |
| Run time @25% load | Not available | 8 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Bonded to frame | true |
| UPC | 11675307615 | 811640017033 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 5000 | 9000 |
| Running Watts (Propane) | Not available | 8550 |
| Starting Watts (Gasoline) | 6500 | 11000 |
| Starting Watts (Propane) | Not available | 10450 |
| Runtime @ 50% Load (Gasoline) | 10 | 9 |
| Runtime @ 50% Load (Propane) | Not available | 4 |
| Runtime @ 25% Load (Gasoline) | 14 | 18 |
| Runtime @ 25% Load (Propane) | Not available | 8 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R) | 2x Duplex 120V 20A (5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 459 cc OHV 4-stroke |
| Engine Displacement | 306 | 459 |
| Engine Oil Type | Not available | 10W-30 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 14 | 18 |
| Runtime @ 50% Load (Gasoline) | 10 | 9 |
| Runtime @ 50% Load (Propane) | Not available | 4 |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Oil and funnel | Recoil, Electric, Remote |
| Included Accessories | Oil and funnel | Funnel, tool kit, key fob, battery charger, propane hose, battery charging cables, and battery |
| Warranty & identification | ||
| Commercial Warranty | 2 | 5 |
| Part Number | 30761 | Not available |
| Additional specs | ||
| Summary | The Briggs & Stratton 30761 Q6500 QuietPower is a 5,000-watt inverter generator built for homeowners and outdoor users who need extended runtime without excessive noise. With 6,500 peak watts, this unit can start larger appliances like refrigerators and air conditioning units, then sustain 5,000 watts of continuous power for essential household devices, tools, and camping equipment. The inverter technology keeps total harmonic distortion below 3%, meaning laptops, phones, and televisions stay protected from power surges that would damage their circuits.
At 66 decibels, the Q6500 operates quietly enough for residential neighborhoods and campgrounds where noise restrictions matter. The 5-gallon fuel tank stretches to 14 hours of runtime at 25% load, reducing refueling interruptions during extended outages or weekend trips. This combination positions the unit as a middle-ground option: more power than portable inverters, quieter than traditional open-frame generators, and practical for users who prioritize both output and operational peace. | The DuroMax XP11000iH is a 9,000-watt dual-fuel inverter generator built for home backup and jobsite power. Because it runs on either gasoline or propane, users can adapt to fuel availability rather than being locked into one source. The 11,000-watt peak output handles large appliances and power tools simultaneously, while the inverter technology keeps total harmonic distortion at just 3 percent. This matters for laptops, televisions, and other sensitive gear that can suffer damage from dirty power. At 61 decibels, the noise level sits between a normal conversation and a vacuum cleaner, making it tolerable in residential settings without constant ear protection. |
