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.
- Genmax GM3500iAED
- Aceup Energy AI2500S
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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Genmax GM3500iAED | Aceup Energy AI2500S |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 3200 W | 1900 W |
| Starting watts | Winner: Winner: 3500 W | 2500 W |
| Noise (lower limit) | 62 dB | Winner: Winner: 58 dB |
| Weight | 56.2 lbs | Winner: Winner: 44 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | 9 h | Winner: Winner: 10 h |
| Fuel tank | 1.7 gal | 1.32 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 20.9 x 12.2 x 19.7 | Not available |
| Electrical | ||
| Voltage (AC) | 120 | 120V |
| Voltage (DC) | 5 | 12V |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | ≤3% % | 1.5 % |
| Engine | ||
| Engine | 145 cc OHV 4-stroke | 79.8cc 4-Stroke OHV Engine |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil Start |
| Warranty | ||
| Warranty | 1 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3200 W | 1900 W |
| Starting watts | 3500 W | 2500 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 | Not available |
| Run time @25% load | 8 h | 10 h |
| Propane | Not available | Not available |
| Running watts | 2800 W | Not available |
| Starting watts | 3100 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 | 16 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA Compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | true | Not available |
| UPC | 713424639021 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3200 | 1900 |
| Running Watts (Propane) | 2800 | Not available |
| Starting Watts (Gasoline) | 3500 | 2500 |
| Starting Watts (Propane) | 3100 | Not available |
| Runtime @ 25% Load (Gasoline) | 8 | 10 |
| Runtime @ 25% Load (Propane) | 16 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R) | One 120V 5-20R 20A Outlet |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 4-Stroke OHV |
| Engine Displacement | 145 | 79.8 |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 8 | 10 |
| Controls & display | ||
| Display Type | Not available | Intelligent Gauge |
| Idle Control System | Not available | Eco Mode |
| Safety & compliance | ||
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Included Accessories | Funnel, tool kit, key fob, propane hose, RV adapter, and battery | Not available |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Part Number | Not available | AI2500S |
| Additional specs | ||
| Summary | The Genmax GM3500iAED is a 3,200-watt dual-fuel inverter generator that runs on gasoline or propane. At 56.2 lbs, it handles essential household loads like refrigerators and small power tools while remaining portable enough for camping or job sites. The 62 dB noise level keeps it residential-friendly. | The Aceup Energy AI2500S is a gasoline-powered inverter generator with a rated wattage of 1900 watts and a peak wattage of 2500 watts. |
- Most PowerfulGenmax GM3500iAED3200W running
- QuietestAceup Energy AI2500S58 dB
- Longest Runtimeh at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM3500iAED
Store links
No links yet.
Aceup Energy AI2500S
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.