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.
- Powerhorse 2500i
- Sportsman GENMAX1500
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 | Powerhorse 2500i | Sportsman GENMAX1500 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 1800 W | 900 W |
| Starting watts | Winner: Winner: 2500 W | 1500 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 65 dB |
| Weight | 48.3 lbs | Winner: Winner: 45 lbs |
| Run time @50% load | Winner: Winner: 9.5 h | 8 h |
| Run time @25% load | 10.5 h | Not available |
| Fuel tank | 1.2 gal | 1 gal |
| Fuel gauge | No | No |
| Approx. dimensions (L × W × H) | 20.4 x 12.5 x 18.3 | 16 x 14 x 16 |
| Electrical | ||
| Voltage (AC) | 120 | 120 |
| Voltage (DC) | Not available | 12 |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | 3 % | Not available |
| Engine | ||
| Engine | 80 cc OHV 4-stroke | 72 cc 2-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil | Recoil |
| Warranty | ||
| Warranty | 2 years | 1 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | Not available | 900 W |
| Starting watts | 2500 W | 1500 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 | 9.5 h | 8 h |
| Run time @25% load | 10.5 h | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 840321763969 | 27077805444 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | Not available | 900 |
| Starting Watts (Gasoline) | 2500 | 1500 |
| Runtime @ 50% Load (Gasoline) | 9.5 | 8 |
| Runtime @ 25% Load (Gasoline) | 10.5 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R); 1x 120V 30A (L5-30R) | 1x Duplex 120V 20A (5-20R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | 80 cc OHV 4-stroke | 2-stroke |
| Engine Displacement | 80 | 72 |
| Runtime & fuel system | ||
| Runtime @ 25% Load (Gasoline) | 10.5 | Not available |
| Runtime @ 50% Load (Gasoline) | 9.5 | 8 |
| 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 | ||
| Included Accessories | Funnel and tool kit | Tool kit and battery charging cables |
| Warranty & identification | ||
| Commercial Warranty | 2 | Not available |
| Additional specs | ||
| Summary | The Powerhorse 2500i is a portable inverter generator delivering 2,500 surge watts and 1,800 rated watts, featuring a quiet 52dB operation, CO shutdown function, and parallel-ready design for increased power needs. | The Sportsman GENMAX1500 is a portable 2-cycle gasoline generator offering 1,500 surge watts and 900 running watts, suitable for powering common household appliances and power tools. |
- Most PowerfulPowerhorse 2500i1800W running
- QuietestPowerhorse 2500i62 dB
- Longest RuntimePowerhorse 2500i9.5h at 50% load
Where to buy
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Powerhorse 2500i
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Sportsman GENMAX1500
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