Premium price: higher than 68% of Generators
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The Verdict
The GENMAX GM5500i is a high-output inverter that punches well above its weight class, delivering 5000 rated watts of clean, stable power (<3% THD) suitable for sensitive electronics. Its most critical advantage is the 120V/240V selector switch, allowing it to interface directly with a home transfer switch for emergency backup—a capability usually reserved for much heavier, louder open-frame units. Owners consistently praise the quiet 60dB operation and the electric start, which simplifies setup during power outages or at crowded campsites.
Value vs. Trade-off
The primary compromise lies in the exterior build materials; the plastic casing, while keeping the unit at a manageable 117 lbs, lacks the industrial-grade ruggedness of premium steel-frame competitors. Additionally, oil maintenance can be slightly cumbersome due to the compact internal layout. However, these are minor ergonomic trade-offs when viewed against the price. You are getting dual-voltage versatility and 5500 peak watts for a fraction of what a comparable "pro-brand" unit costs. For homeowners and RVers who need reliable emergency power without the deafening noise of a standard generator, the GM5500i is an unbeatable value that prioritizes performance where it counts most.
Value vs. Trade-off
The primary compromise lies in the exterior build materials; the plastic casing, while keeping the unit at a manageable 117 lbs, lacks the industrial-grade ruggedness of premium steel-frame competitors. Additionally, oil maintenance can be slightly cumbersome due to the compact internal layout. However, these are minor ergonomic trade-offs when viewed against the price. You are getting dual-voltage versatility and 5500 peak watts for a fraction of what a comparable "pro-brand" unit costs. For homeowners and RVers who need reliable emergency power without the deafening noise of a standard generator, the GM5500i is an unbeatable value that prioritizes performance where it counts most.
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About this product
- 【Powerful Engine】5000 Rated Watts and 5500 Peak Watts at Less Than 3% THD,Telescoping Handle ,Manual / Electric start, 3.9 Gallon Fuel Tank With Fuel Gauge,Up to 10 Hours of Run Time with 120/240V Volt Selector Switch.
- 【Wide Application】 GENMAX portable generator is great for home emergency power supply,campgrounds, construction sites, mobile devices and power outages. This generator is very durable that provides continuous power to handle multiple jobs, such as powering high voltage appliances and heavy duty power tools in different job sites
- 【Multifunctional Power Supply Panel】Includes low oil alarm, overload alarm,Co warning light ,output indicator features and Fault alarm function,“Eco mode” for conserving energy and maximum fuel efficiency,An easily accessible TT-30R RV outlet makes the perfect for travel trailers
- 【Quiet and Lightweight Structure】The compact suitcase design is easy to carry,Economy mode automatically adjusts engine speeds to save fuel and reduce sound emissions,The runtime sound is only 60 decibels, Integrated Off/Run/Choke Knob simplifies startup procedures
- 【CO Detect Shutdown】 Includes CO Detect shutdown sensor for Prevention of Carbon Monoxide Poisoning
Specifications
- Brand
- Genmax
- Model
- GM5500i
- Part Number
- 5500W
- Running Watts
- 5000 W
- Fuel
- Gasoline
- Type
- Inverter
- Brand
- Genmax
- Portability
- Folding Handles, Carrying Handles
- Features
- Low Oil Shutoff, Overload Protection, Fuel Gauge, Pure Sine Output, CO Shutdown Sensor
- Starter
- Electric Starter, Recoil Starter
- Receptacles
- 120V 30A (TT-30R)
- Use
- Home Backup, Camping, Tailgating, Jobsite
- Starting Watts
- 5500 W
- Noise
- 60 dB
- Width
- 18.5 inches
- Height
- 21 inches
- Depth
- 24 inches
- Weight
- 127.8 pounds
- Colour
- orange
- Warranty
- 2
- Manufacturer
- GENMAX
- UPC
- 768494055455
- GTIN
- 00768494055455






