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| Specification | A-iPower SUA3800i | Genmax GM4000Xi |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | No |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 3500 W | 3200 W |
| Starting watts | 3800 W | Winner: Winner: 4000 W |
| Noise (lower limit) | Winner: Winner: 63 dB | 66 dB |
| Weight | 121 lbs | Winner: Winner: 61.7 lbs |
| Run time @50% load | Winner: Winner: 7 h | Not available |
| Run time @25% load | 12 h | 7 h |
| Fuel tank | 2.6 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 24 x 19 x 22 | Not available |
| Electrical | ||
| Voltage (AC) | 120 | Not available |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | Not available |
| Engine | ||
| Engine | 223 cc Senci OHV 4-stroke | Not available |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 3 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3500 W | Not available |
| Starting watts | 3800 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 | 7 h | Not available |
| Run time @25% load | 12 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | Not available |
| Compliance | CARB, EPA | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 851217006916 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3500 | Not available |
| Starting Watts (Gasoline) | 3800 | Not available |
| Runtime @ 50% Load (Gasoline) | 7 | Not available |
| Runtime @ 25% Load (Gasoline) | 12 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 223 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 12 | Not available |
| Runtime @ 50% Load (Gasoline) | 7 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Included equipment | ||
| Starting Components | Oil, funnel, tool kit, RV adapter, and battery charging cables | Not available |
| Included Accessories | Oil, funnel, tool kit, RV adapter, and battery charging cables | Not available |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Additional specs | ||
| Summary | The A-iPower SUA3800i is a 3500-watt inverter generator built for job sites and temporary power needs where portability matters but runtime endurance is secondary. Its gasoline engine delivers clean power suitable for sensitive electronics, making it viable for both construction work and RV backup scenarios. | The Genmax GM4000Xi is a 3,200-watt gasoline inverter generator built for RV camping, tailgating, and backup power for small homes. Its 4,000 peak watts handle motor startup surges, while the inverter technology keeps laptops and sensitive electronics safe. At 61.7 lbs, it moves easily between locations. |
