GENMAX GM3500Xi 3500-Watt Open Frame Inverter Generator with CO Detect
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$442.97at WalmartObserved Nov 3, 2026, 5:51 PM
Compared across 4 stores. Prices are checked against each store and labelled with when.
Compared across 4 stores. Prices are checked against each store and labelled with when.
The GENMAX GM3500Xi is a gasoline inverter generator rated at 3,200 running watts and 3,500 surge watts, built around a 145cc engine in a 57.3 lb open steel frame. It offers clean power under 3% THD, a 2.2-gallon tank good for up to 8.5 hours at half load, two 120V 20A GFCI outlets, a 120V 30A outlet, two USB ports, and CO detection that shuts the unit down. Its best new price is $414.57 at eBay as of November 3, 2026, at the low end of what this class of 3,500-watt inverter typically sells for.
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Lowest price we've seen: $428.00 on Nov 3. Tracked across 7 stores since Nov 3.
Owner feedback on this class of GENMAX inverter is generally positive on value, weight and clean power, with noise and pull-start effort as the common complaints.
【Lightweight & Powerful】GM3500Xi compact portable inverter generator weights only 57.3 pounds, uses newest high speed 5.2 HP 145cc GENMAX gas engine with low oil shut off which protects the engine from damage, output 3500 surging watts and 3200 running watts,50% quieter and 40% lighter than a traditional 3500-watt generator, it is the dream ideal product for emergency home backup power, jobsite use, tailgate or camping with your RV. 【Advanced Quiet Design】Inverter technology dramatically reduces noise levels and provides clean, stable power for sensitive electronics, tools and appliances with clean power (less than 3% THD). Economy Mode saves fuel and extends engine life. 2.2 Gal. steel fuel tank provides up to 8.5 hours of runtime at 50% load. Hardened 1 steel tube frame is job site tested for superior durability and strength. 【Strong panel with Parallel function】With a 120V 30A,two convenient USB ports plus two 120V 20A GFCI covered outlets provides protection from the elements and rugged working conditions.Hour meter tracks maintenance intervals.Connect two GM3500Xi inverters together to double your power to 7000 peak watts and 6400 running watts. (Parallel kit sold separately.) 【CO DETECT】CO Protect technology stops, alerts, saves, powerful protection against hazardous carbon monoxide.