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.
- Cummins Onan P2500i
- AIVOLT VS8000411
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 | Cummins Onan P2500i | AIVOLT VS8000411 |
|---|---|---|
| General | ||
| Product type | Generator | Not available |
| Fuel | Gasoline | Dual-Fuel |
| Inverter | Yes | Yes |
| Parallel capable | Yes | Yes |
| RV ready | No | Yes |
| Running watts | 2200 W | Winner: Winner: 6100 W |
| Starting watts | 2500 W | Winner: Winner: 8000 W |
| Noise (lower limit) | Winner: Winner: 52 dB | 62 dB |
| Weight | Winner: Winner: 48 lbs | 129 lbs |
| Run time @50% load | Winner: Winner: 8 h | Not available |
| Run time @25% load | 10 h | Not available |
| Fuel tank | 1 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 19.8 x 10.5 x 18.3 | 25.2"L x 19.7"W x 21.4"H |
| Electrical | ||
| Voltage (AC) | 120 | 120 Volts |
| Voltage (DC) | 12 | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | <3% % | 3 % |
| Engine | ||
| Engine | 98 cc Ducar OHV 4-stroke engine | 322cc 4-stroke OHV engine |
| Alternator | Not available | Not available |
| Starting system | Recoil | Electric start |
| Warranty | ||
| Warranty | 3 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 2200 W | 6100 W |
| Starting watts | 2500 W | 8000 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 | 8 h | Not available |
| Run time @25% load | 10 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | Not available |
| Compliance | CARB, EPA | EPA & CARB compliant |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 690781007918 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 2200 | 6100 |
| Starting Watts (Gasoline) | 2500 | 8000 |
| Runtime @ 50% Load (Gasoline) | 8 | Not available |
| Runtime @ 25% Load (Gasoline) | 10 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) | 4 outlets |
| Electrical & power | ||
| Frequency | 60 | 50 |
| Engine & construction | ||
| Engine Type | Ducar OHV 4-stroke | Not available |
| Engine Displacement | 98 | 322 |
| Alternator Winding Material | Not available | 100% copper windings |
| Engine Oil Type | SAE 10W30 | Not available |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10 | Not available |
| Runtime @ 50% Load (Gasoline) | 8 | Not available |
| Controls & display | ||
| Display Type | Not available | 5-in-1 LCD display center |
| Idle Control System | Not available | Eco-Mode |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Automatic shutdown during carbon monoxide detection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | No | Yes |
| Included equipment | ||
| Mobility Components | Not available | Telescopic handle, two 7-inch never-flat wheels |
| Fuel Connection Components | Not available | Automatic fuel-switching technology |
| Included Accessories | Oil, funnel, and tool kit | Dual 2.4A USB adapter, emergency battery charger, LPG hose, tool kit, oil funnel |
| Warranty & identification | ||
| Residential Warranty | Not available | 2 |
| Commercial Warranty | Not available | 2 |
| Additional specs | ||
| Summary | The Cummins Onan P2500i is a 2200-watt inverter generator built for users who need portable power without sacrificing runtime or noise control. At 48 pounds and measuring 19.8 by 10.5 by 18.3 inches, this unit bridges the gap between true portability and practical capacity. It can run a microwave, small refrigerator, or circular saw continuously, making it suitable for camping trips, job sites, tailgating, and emergency backup. The 1-gallon fuel tank delivers 10 hours at 25 percent load and 8 hours at 50 percent load, meaning most users refuel once per day rather than multiple times.
The inverter topology produces clean power with less than 3 percent THD, which protects laptops, phone chargers, and sensitive electronics from voltage spikes. Cummins backs this unit with a 3-year warranty, longer than the 2.4-year average for comparable inverter generators. The 52 dBA noise level sits between a normal conversation and light traffic, allowing operation in noise-restricted campgrounds and residential neighborhoods without drawing complaints. | The AIVOLT VS8000411 is a dual-fuel generator with 6100 rated watts and 8000 peak watts. |
- Most PowerfulAIVOLT VS80004116100W running
- QuietestCummins Onan P2500i52 dB
- Longest RuntimeCummins Onan P2500i8h at 50% load
Where to buy
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Cummins Onan P2500i
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AIVOLT VS8000411
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