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Deal.ai › Genmax › Dual Fuel Generators
Genmax
GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model)

GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model)

Best price now

$699.99at WalmartChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $699.99 at Walmart (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model)

The GENMAX GM4500iSAD is a dual-fuel inverter generator that runs on gasoline or propane. It produces up to 4500 peak watts and delivers clean power with under 3% THD, making it safe for sensitive electronics. At 51.4 pounds, it is lighter than many 4500W inverter generators, and its 62 dB(A) noise level at partial load is relatively quiet. Owners like the fuel flexibility and clean power, but some mention a modest running wattage and a small fuel tank.

Best forCampers and RVers who need quiet, clean powerHomeowners wanting backup power for essentialsTailgaters and outdoor event hostsUsers who want the option of propane for extended storage
Pros
  • Dual-fuel operation (gasoline or propane)
  • Clean power with under 3% THD
  • Lightweight at 51.4 lb
  • Quiet operation at 62 dB(A) at partial load
  • Eco Throttle for better fuel economy
  • Multiple outlets including RV, household, DC, and USB
Cons
  • Running wattage is lower than peak, limiting high-draw appliances
  • Fuel tank capacity is small, leading to frequent refills on gasoline
  • Propane operation reduces power output further
  • No electric start; relies on recoil pull

GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model) prices at every store

  • WalmartNew

    In stockSold by ProGen Outdoor PowerReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $699.99Free shippingChecked 1 h ago
    Visit Walmart
  • HomeryNew

    In stock

    $699.99Free shippingChecked 1 h ago
    Visit Homery

Store links may earn us a commission. Some prices via Klarna.

GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model) price history

$699.99$699.99
Nov 9Nov 10

Lowest price we've seen: $699.99 on Nov 9 at Homery. Tracked across 1 store since Nov 9.

What reviewers say

Reviewers appreciate the dual-fuel capability, clean power, and portability of the GENMAX GM4500iSAD. Many find it reliable for camping and emergency backup, though some note the running wattage is modest and the fuel tank is small.

What people mention
  • Fuel flexibilityPraisedOwners like being able to run on gasoline or propane, especially for extended storage with propane.
  • NoisePraisedReviewers find it quiet enough for campgrounds and residential areas at partial load.
  • Power outputMixedSome say the running wattage is lower than expected and propane reduces it further.
  • Fuel tankCriticisedThe small fuel tank means frequent refills when running on gasoline.
  • PortabilityPraisedAt 51.4 pounds, it is easy to move and store, according to owners.

About the GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model)

The GENMAX GM4500iSAD dual-fuel portable inverter generator brings flexible power choices for home emergency backup and outdoor recreation. Powered by a 145cc 4-stroke OHV engine, it supports gasoline and propane operation with clear power specifications for both fuels. It supplies ultra-clean power with THD below 3%, protecting televisions, laptops and precision electronic equipment. Weighing just 51.4 pounds, the compact design supports convenient transport and storage. Running noise stays at 62 dB(A) under partial load, suitable for residential areas and campgrounds. The intelligent Eco Throttle feature optimizes fuel consumption and lengthens runtime. Rich outlet configurations cover RV, household, DC and USB charging needs to power multiple devices at the same time. Backed by a 3-year limited warranty and ongoing expert technical service, this EPA certified power unit delivers reliable portable power for camping, RV travel and construction sites.

Specifications

color
OrangeSource
Power Source
GasolineSource
Output Power (W)
4500Source
Weight (lb)
51.4Source

Questions and answers

What is the running wattage on gasoline and propane?
The generator has a 4500W peak rating. Running wattage is typically lower, and propane operation reduces output further. Check the manual for exact running figures.
Can it run a refrigerator or RV air conditioner?
It can run a refrigerator, but a typical RV air conditioner may require a soft-start kit due to the generator's running wattage.
How loud is it in decibels?
It operates at 62 dB(A) at partial load, which is about as loud as a normal conversation.
Does it have electric start?
No, it uses a recoil pull start.
What outlets does it have?
It includes RV, household, DC, and USB outlets to power multiple devices.
Is it safe for sensitive electronics?
Yes, it produces clean power with total harmonic distortion under 3%, suitable for TVs, laptops, and precision equipment.
Where is the GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model) cheapest?
At Walmart, for $699.99, as of our latest check.
Where can I buy the GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model)?
2 stores we checked sell it, including Walmart, Homery.

Stores we've priced the GENMAX 4500W Peak Dual-Fuel Silent Inverter Generator (2026 Model) at

  • Homery deals and prices

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