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 GXS5000RD
- 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 | A-iPower GXS5000RD | Aceup Energy AI2500S |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 4000 W | 1900 W |
| Starting watts | Winner: Winner: 5000 W | 2500 W |
| Noise (lower limit) | 68 dB | Winner: Winner: 58 dB |
| Weight | 124 lbs | Winner: Winner: 44 lbs |
| Run time @50% load | Not available | Not available |
| Run time @25% load | Winner: Winner: 20 h | 10 h |
| Fuel tank | 6.3 gal | 1.32 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 24 x 23.6 x 24 | Not available |
| Electrical | ||
| Voltage (AC) | 120/240 | 120V |
| Voltage (DC) | Not available | 12V |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | 1.5 % |
| Engine | ||
| Engine | 223 cc OHV 4-stroke, cast iron sleeve | 79.8cc 4-Stroke OHV Engine |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil Start |
| Warranty | ||
| Warranty | 3 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 4000 W | 1900 W |
| Starting watts | 5000 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 | 20 h | 10 h |
| Propane | Not available | Not available |
| Running watts | 3600 W | Not available |
| Starting watts | 4500 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 | 11 h | Not available |
| Other | ||
| Data center | Digital Data Center | Not available |
| Indicators | true | true |
| Compliance | CARB, EPA, ANSI/PGMA G300-2023 | EPA Compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 850016881328 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 4000 | 1900 |
| Running Watts (Propane) | 3600 | Not available |
| Starting Watts (Gasoline) | 5000 | 2500 |
| Starting Watts (Propane) | 4500 | Not available |
| Rated Watts (Gasoline) | 4000 | Not available |
| Rated Watts (Propane) | 3600 | Not available |
| Peak Watts (Gasoline) | 5000 | Not available |
| Peak Watts (Propane) | 4500 | Not available |
| Runtime @ 25% Load (Gasoline) | 20 | 10 |
| Runtime @ 25% Load (Propane) | 11 | Not available |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R); 1x 120/240V 30A (L14-30R) | One 120V 5-20R 20A Outlet |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 223 cc OHV 4-stroke | 4-Stroke OHV |
| Engine Displacement | 223 | 79.8 |
| Cylinder Sleeve | cast iron sleeve | Not available |
| Engine Oil Type | 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 20 | 10 |
| Controls & display | ||
| Display Type | Digital Data Center | Intelligent Gauge |
| Idle Control System | Not available | Eco Mode |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | Yes | No |
| Included equipment | ||
| Mobility Components | Wheels and folding handle | Not available |
| Starting Components | Battery and fob included | Not available |
| Included Accessories | Oil, funnel, tool kit, key fob, propane hose, RV adapter, battery, and wheel kit | Not available |
| Warranty & identification | ||
| Residential Warranty | 3 | 2 |
| Commercial Warranty | 3 | Not available |
| Part Number | GXS5000RD | AI2500S |
| Additional specs | ||
| Summary | The A-iPower GXS5000RD is a 4,000-watt dual-fuel generator built around a 223cc OHV engine that runs on either gasoline or propane. On gasoline, it delivers 5,000 starting watts and 4,000 running watts. On propane, output drops to 4,500 starting and 3,600 running watts. This power level handles most household circuits, power tools, and mid-range job site equipment simultaneously. The dual-fuel design means users can switch between fuels based on availability, cost, or storage preference. A 6.3-gallon tank paired with 20-hour runtime at 25% load reduces refueling frequency during light-duty work. The 68 dBA noise level sits between a normal conversation and a vacuum cleaner, making it acceptable for residential neighborhoods with reasonable distance from neighbors. | 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 PowerfulA-iPower GXS5000RD4000W running
- QuietestAceup Energy AI2500S58 dB
- Longest Runtimeh at 50% load
Where to buy
Prices can change. We update these automatically.
A-iPower GXS5000RD
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.