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| Specification | Cat RP6500 E | Aceup Energy AI2500S |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Gasoline |
| Inverter | No | Yes |
| Parallel capable | No | Yes |
| RV ready | No | Yes |
| Running watts | Winner: Winner: 6500 W | 1900 W |
| Starting watts | Winner: Winner: 8125 W | 2500 W |
| Noise (lower limit) | 0 dB | Winner: Winner: 58 dB |
| Weight | 202 lbs | Winner: Winner: 44 lbs |
| Run time @50% load | Winner: Winner: 12 h | Not available |
| Run time @25% load | Not available | 10 h |
| Fuel tank | 7.9 gal | 1.32 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 32.9 x 27.4 x 24.7 | Not available |
| Electrical | ||
| Voltage (AC) | 120/240 | 120V |
| Voltage (DC) | Not available | 12V |
| GFCI outlets | Yes | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | Not available | 1.5 % |
| Engine | ||
| Engine | 420 cc OHV 4-stroke | 79.8cc 4-Stroke OHV Engine |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric | Recoil Start |
| Warranty | ||
| Warranty | 2 years | 2 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 6500 W | 1900 W |
| Starting watts | 8125 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 | 12 h | Not available |
| Run time @25% load | Not available | 10 h |
| Other | ||
| Data center | Not available | Not available |
| Indicators | false | true |
| Compliance | CARB, EPA | EPA Compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | true | Not available |
| UPC | 815683020067 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 6500 | 1900 |
| Starting Watts (Gasoline) | 8125 | 2500 |
| Runtime @ 50% Load (Gasoline) | 12 | Not available |
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| AC Outlet Types | 2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R); 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 | 420 | 79.8 |
| Engine Oil Type | SAE 30 or 10W-30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | Not available | 10 |
| Runtime @ 50% Load (Gasoline) | 12 | Not available |
| Controls & display | ||
| Display Type | Not available | Intelligent Gauge |
| Idle Control System | Not available | Eco Mode |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Not available |
| Low Oil Protection | Yes | No |
| Carbon Monoxide Monitoring | No | No |
| Included equipment | ||
| Starting Components | Recoil, Electric | Not available |
| Included Accessories | Oil, funnel, tool kit, battery, and wheel kit | Not available |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Part Number | 502-3688 | AI2500S |
| Additional specs | ||
| Summary | The Cat RP6500 E is a 6500-watt gasoline generator built for residential backup and light commercial work. Its 8125-watt peak capacity means it can start large tools and appliances that draw high inrush current, then sustain 6500 watts of continuous power for multiple devices simultaneously. A 7.9-gallon fuel tank delivers 12 hours of runtime at 50% load, which translates to roughly one full workday or overnight backup without refueling. The gasoline engine is straightforward to maintain and refuel anywhere, making this unit practical for job sites, outdoor events, and emergency home power. | The Aceup Energy AI2500S is a gasoline-powered inverter generator with a rated wattage of 1900 watts and a peak wattage of 2500 watts. |
