Winter storm prep is one of those things that’s easy to put off until the forecast gets ugly, but emergency supplies are a lot more useful when they’re already in the garage before the power goes out. With winter weather already becoming a timely topic and snowier conditions possible in parts of the country this season, a portable generator is the kind of backup power source that can make storms, outages, and rough weather a lot less stressful. It can help keep essentials running at home, but it’s also useful for camping, job sites, outdoor projects, and working on vehicles when power isn’t nearby.
Thanks to this deal we found at Walmart, the Gewna 4,550W Portable Gas Inverter Generator is on sale for $320, 47% off its usual $600 price. With up to 4,550 peak watts and 3,800 running watts, it has enough output for plenty of backup and portable power needs, from keeping important devices charged during an outage to running select tools, lights, fans, small appliances, and garage equipment.
Rare DealFor storm prep, this is the kind of generator you can keep ready alongside extension cords, flashlights, batteries, emergency kits, jump starters, tire inflators, and other winter supplies. If a snowstorm, ice storm, or wind event knocks out power, having a generator on hand can help keep phones charged, power a few key devices, run work lights, or support other essentials depending on your setup and wattage needs. It’s also a strong garage option for gearheads and DIYers, giving you portable power for vehicle projects, driveway repairs, outdoor work, camping trips, tailgates, and other situations where an outlet is not convenient.
It comes with a 4-stroke engine, 120V output, 60Hz frequency, and a 1.65-gallon fuel tank with up to nine hours of runtime at 25% load in economy mode. It weighs 68 pounds, so it’s portable enough to move around the garage, driveway, campsite, or jobsite without being as massive as some whole-home backup units. The 72-decibel noise rating is also worth noting, since portable generators are never silent but this one is listed at a more manageable level for outdoor use.
As with any gas generator, it should only be operated outdoors and away from windows, doors, vents, garages, and enclosed spaces because of carbon monoxide risk. Used properly, though, it can be a valuable part of a winter storm prep plan and a useful year-round backup power source. For anyone getting serious about emergency supplies before the weather turns or wanting portable power for the garage, campsite, or jobsite, this is a solid pickup for $320.
“This generator is amazing for the money,” said one happy buyer. “It’s been running nonstop for 48 hours, and less than five gallons of gas has been used in eco mode. It’s very quiet and easy to start.”
Deals We’re Loving
- Gewna Gas Inverter Generator, $270 (was $400) at Walmart
- Aceup Gas Inverter Generator, $379 (was $600) at Walmart
- Efurden Gas Inverter Generator, $300 (was $550) at Walmart
Bigger backup power options rarely have discounts this big, so head over to Walmart’s site today and get your hands on the Gewna 4,550W Portable Gas Inverter Generator for only $320 while it’s still on sale for nearly 50% off.
About the author

Andrew Koopman
Commerce Writer, Autoblog
