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.
- A-iPower SUA9000E
- Briggs & Stratton 30728 Storm Responder
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 | A-iPower SUA9000E | Briggs & Stratton 30728 Storm Responder |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 7250 W | 6250 W |
| Starting watts | Winner: Winner: 9000 W | 8500 W |
| Noise (lower limit) | Winner: Winner: 76 dB | 0 dB |
| Weight | Winner: Winner: 201.7 lbs | 210 lbs |
| Run time @50% load | 8.5 h | Winner: Winner: 11 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7 gal | 7.5 gal |
| Fuel gauge | Yes | Yes |
| Approx. dimensions (L × W × H) | 27.5 x 26 x 26 | 28 x 27 x 28 |
| Electrical | ||
| Voltage (AC) | 120/240 | 120/240 |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | Not available | Not available |
| Engine | ||
| Engine | A-iPower OHV 4-stroke, 420 cc | Briggs & Stratton® |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 7250 W | 6250 W |
| Starting watts | 9000 W | 8500 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 | 8.5 h | 11 h |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA | ANSI/PGMA G300-2018 |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | Not available | true |
| UPC | 616641364823 | 11675307288 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 7250 | 6250 |
| Starting Watts (Gasoline) | 9000 | 8500 |
| Runtime @ 50% Load (Gasoline) | 8.5 | 11 |
| AC Outlet Types | 2x Duplex 120V 20A; 1x 120V 30A; 1x 120/240V 30A | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 1850 Series™ OHV Engine |
| Engine Displacement | 420 | 420 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 8.5 | 11 |
| Controls & display | ||
| Display Type | Not available | StatStation™ Digital Display |
| Idle Control System | Not available | No |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection; CO monitoring |
| Low Oil Protection | No | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | 10" Never Go Flat Wheels |
| Starting Components | Not available | Recoil |
| Documentation | Not available | operator's manual or illustrated parts list |
| Included Accessories | Oil, tool kit, battery charging cables, battery, and wheel kit | Extension cord and wheel kit |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Commercial Warranty | Not available | 0.25 |
| Part Number | Not available | 030728 |
| Additional specs | ||
| Summary | The A-iPower SUA9000E is a 7250-watt gasoline generator built for homeowners, job sites, and outdoor events that demand serious power. With 9000 starting watts, this unit can crank heavy tools, multiple appliances, and air conditioning units simultaneously. A 7-gallon fuel tank stretches runtime to 8.5 hours at half load, meaning you can run a job site or power an outage through most of a workday without refueling. The trade-off is weight and noise. At 201.7 pounds, this generator requires a truck bed or trailer for transport. At 76 decibels, it runs louder than most residential backup units, so placement matters for neighbors and campsite harmony. | The Briggs & Stratton 30728 Storm Responder is a 6250-watt gasoline generator built for homeowners and job sites that need sustained power for essential appliances and tools. With 8500 peak watts, it can start large loads like air compressors and refrigerators that draw high inrush current. The 7.5-gallon fuel tank delivers 11 hours of runtime at half load, meaning users can run the unit through a full workday or overnight without refueling. This is a stationary-leaning portable unit, not a grab-and-go machine. |
- Most PowerfulA-iPower SUA9000E7250W running
- QuietestA-iPower SUA9000E76 dB
- Longest RuntimeBriggs & Stratton 30728 Storm Responder11h at 50% load
Where to buy
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A-iPower SUA9000E
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Briggs & Stratton 30728 Storm Responder
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