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Deal.ai › Amerisun › Camping Portable Power
Amerisun
Amerisun 5000-Watt Gas Portable Generator

Amerisun 5000-Watt Gas Portable Generator

4.2(13 ratings)

Best price now

$559.99at WalmartChecked 50 min ago

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Price facts

  • Lowest price today: $559.99 at Walmart (checked Nov 15, 2026).

Our take on the Amerisun 5000-Watt Gas Portable Generator

The Amerisun 5000-Watt is a gas portable generator built around a 223cc 4-stroke OHV engine. It starts at 5000 watts and runs 4000 watts, with a 3.43-gallon tank rated for up to 10 hours at half load. It carries a lift-and-carry handle, a CO shutoff sensor, RV-ready 30A outlets, USB and DC ports, and parallel capability for pairing two units. It suits home backup and campsite power where a corded generator is acceptable; at 71 dB it is not quiet enough for shared campgrounds, and it lacks the inverter electronics and lighter weight of inverter rivals.

Best forHome backup for a fridge, lights and a few appliancesCamping and tailgating with RV or 30A hookupsJob sites and remote work needing 120V powerOwners who want to pair two units for more output
Pros
  • 5000 starting watts and 4000 running watts from a 223cc OHV engine
  • Up to 10 hours at 50% load on a 3.43-gallon tank
  • CO sensor shuts the unit down when carbon monoxide builds up
  • RV-ready 30A outlet plus USB and DC outputs
  • Parallel-capable for linking two units
  • Lift-and-carry handle for moving it
Cons
  • 71 dB is loud next to inverter generators
  • Conventional generator, not an inverter: power quality is rougher for sensitive electronics
  • Heavy for one person to lift despite the handle
  • No electric start listed; pull start only
  • Few owner reports to draw on, so long-term durability is unproven

Amerisun 5000-Watt Gas Portable Generator prices at every store

  • WalmartNew

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

    $559.99Free shippingChecked 50 min ago
    Visit Walmart

What reviewers say

  • 4.2 / 513 ratings

With only a handful of ratings, feedback is thin but leans positive at about 4.2 out of 5. Owners describe it as doing the job for backup and outdoor use, while noise and weight come up as the main drawbacks.

What people mention
  • NoiseCriticisedOwners find it loud in use, which is expected of a conventional generator rather than an inverter.
  • ReliabilityPraisedBuyers report it starting and running dependably for home backup and outdoor power.
  • PortabilityMixedThe lift-and-carry handle helps, but the unit is still heavy to move alone.
  • CO safetyPraisedThe carbon monoxide shutoff is called out as a reassuring safety feature.
  • OutletsPraisedThe 30A RV outlet and USB and DC ports cover common backup and camping needs.

About the Amerisun 5000-Watt Gas Portable Generator

The Amerisun Power Series Gasoline Generator is a portable generator with a 223cc 4-stroke OHV engine. It delivers 5000 starting watts and 4000 running watts, and can be used for home backup or outdoor activities.

The 3.43-gallon fuel tank runs for up to 10 hours at 50% load. A lift-and-carry handle makes it easier to move. It operates at 71 dB. Two units can be connected in parallel to double the power output.

The control panel has RV-ready 30A outlets, USB ports and DC outputs. A CO Sensor protects against carbon monoxide buildup.

Engine
223cc, 4-stroke OHV
Starting watts
5000 W
Running watts
4000 W
Fuel type
Gasoline
Fuel tank
3.43 gallons
Run time
Up to 10 hours at 50% load
Noise level
71 dB
Outlets
RV-ready 30A outlets, USB ports, DC outputs
Parallel use
Two units can be connected for double the power
Safety
CO Sensor
Portability
Lift-and-carry handle
Color
Black

Specifications

color
BlackSource

Questions and answers

Is 4000 running watts enough for a house?
It covers essentials: a fridge, lights, a fan, a TV and phone charging. It will not run central AC, an electric range or a well pump alongside other loads. Add up starting watts for anything with a motor.
Can I use it for sensitive electronics?
It is a conventional generator, not an inverter, so power quality is rougher. Laptops and phones are better charged through the USB ports or a surge protector; desktop PCs and medical devices are risky.
How loud is it?
Rated at 71 dB, roughly the level of a lawn mower or busy street. That is fine on a job site but too loud for campgrounds with quiet hours; inverter generators run noticeably quieter.
Can I connect two units together?
Yes, it is parallel-capable, so two units can be linked for double the output. You need the parallel kit, which is not included.
Does it have electric start?
No electric start is listed; it is a pull-start unit. Expect a firm pull from cold, especially in low temperatures.
What comes in the box?
The generator itself with its handle and control panel. A parallel kit, wheel kit and cover are not listed, so plan to add them if you need them.
Where is the Amerisun 5000-Watt Gas Portable Generator cheapest?
At Walmart, for $559.99, as of our latest check.
What do buyers say about the Amerisun 5000-Watt Gas Portable Generator?
Rated 4.2 out of 5 from 13 ratings.

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