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 SUA3800i
- Aceup Energy AI4000s
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 SUA3800i | Aceup Energy AI4000s |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Not available |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | No |
| Running watts | Winner: Winner: 3500 W | 3200 W |
| Starting watts | 3800 W | Winner: Winner: 4000 W |
| Noise (lower limit) | 63 dB | Winner: Winner: 55 dB |
| Weight | Winner: Winner: 121 lbs | Not available |
| Run time @50% load | 7 h | Winner: Winner: 8 h |
| Run time @25% load | 12 h | Not available |
| Fuel tank | 2.6 gal | 1.32 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 24 x 19 x 22 | Not available |
| Electrical | ||
| Voltage (AC) | 120 | 120V |
| Voltage (DC) | 12 | 12V |
| 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 | 4-stroke OHV engine |
| Alternator | Not available | Not available |
| Starting system | Recoil | Not available |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3500 W | 3200 W |
| Starting watts | 3800 W | 4000 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 | 7 h | Not available |
| Run time @25% load | 12 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA | EPA compliant |
| 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 | 3200 |
| Starting Watts (Gasoline) | 3800 | 4000 |
| 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) | One 20A outlet, one L5-30R Twist-Lock receptacle |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 4-stroke OHV engine |
| Engine Displacement | 223 | 149 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 12 | Not available |
| Runtime @ 50% Load (Gasoline) | 7 | Not available |
| Controls & display | ||
| Display Type | Not available | Intelligent gauge |
| Idle Control System | Not available | Economic mode to save fuel |
| 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 | Recoil start |
| Included Accessories | Oil, funnel, tool kit, RV adapter, and battery charging cables | Oil funnel * 2; A bottle of Oil; Spark plug wrench |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Commercial Warranty | 3 | 2 |
| Part Number | Not available | AI4000s |
| 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 Aceup Energy AI4000s is a 3200-watt rated generator that operates on fuel and features inverter technology, making it suitable for various power needs. |
- Most PowerfulA-iPower SUA3800i3500W running
- QuietestAceup Energy AI4000s55 dB
- Longest RuntimeAceup Energy AI4000s8h at 50% load
Where to buy
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A-iPower SUA3800i
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Aceup Energy AI4000s
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