






๐ Power up quietly, live freely.
The Aceup Energy 4000 Watt Gas Inverter Generator combines a powerful 149cc 4-stroke engine with inverter technology to deliver clean, reliable power up to 4000 peak watts. Designed for portability and quiet operation (60dB in eco mode), it features smart monitoring gauges, versatile outlets including RV-ready connections, and parallel capability for expanded power. EPA compliant and backed by a 2-year warranty with lifetime technical support, itโs the perfect energy solution for home backup, camping, and emergency use.




































| ASIN | B0CWN8C57T |
| Additional Features | Automatic Shut Down, Digital Display, Extra-Long Run Time, Fuel Gauge, Super Quiet |
| Best Sellers Rank | #66,810 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #236 in Outdoor Generators |
| Brand | Aceup Energy |
| Brand Name | Aceup Energy |
| Color | Yellow and Black |
| Customer Reviews | 4.4 out of 5 stars 355 Reviews |
| Engine Displacement | 149 cubic centimeters |
| Engine Power Maximum | 7 hp |
| Engine Type | 4 Stroke |
| Frequency | 60 hertz |
| Fuel Type | Gasoline |
| Ignition System Type | recoil start |
| Included Components | Manual, Oil funnel * 2, Spark plug wrench |
| Item Dimensions L x W x H | 19.68"L x 11.8"W x 17.7"H |
| Item Type Name | gas generator |
| Item Weight | 48 pounds |
| Manufacturer | Aceup Energy |
| Manufacturer Part Number | AI4000s |
| Material Type | iron |
| Model Name | 4000w gas inverter generator |
| Model Number | AI4000s |
| Number of Items | 1 |
| Output Wattage | 4000 watts |
| Power Source | Gas-Powered |
| Recommended Uses For Product | Camping, Commercial, Emergency , Outage, Residential |
| Running Wattage | 3200 watts |
| Runtime | 10 hours |
| Starting Wattage | 4000 watts |
| Tank Volume | 1.32 gallons |
| Total Power Outlets | 4 |
| Unit Count | 1 Count |
| Voltage | 120 volts_of_alternating_current |
| Warranty Description | 1 year limited warranty |
| Wattage | 3200 watts |
G**R
great value, quiet, economical on propane
I use this to power my Coleman trailer camper air conditioner. Works well, reasonably quiet though at full speed isn't as quiet as a Honda. For the money, a good buy and replaced my previous genny that was noisy. The indicators for oil work perfectly. It will not run inverter if it is 110 degrees outside, but it will run. Found that making sure it is out of direct sunlight helps. I use on propane, and find it fairly economical to run 20-24 hours on a tank. Also it is more compact (like the Honda) and easier to stow in my camper bulkhead. Starts up reliably on 2nd or third pull (from new hookup) and quick connect hose is a great improvement over threaded hose.
P**E
Power Up!
For the price, the inverter is a great buy. Nice quality and not loud at all. I was very surprised! I might have to do a review video on the inverter. As of now, I am not disappointed at all. However, only time will tell. Not sure how customer service will address issues, but we will see! Nice dual fuel inverter generator.
W**R
So far great
I thought it was going to be lighter and quieter than my old Champion 31. Itโs not. It does have higher watts, which is good. So far I have only been breaking it in but, it starts up easy and seems to work fine. I do like the propane option as well as having an hour meter , which is why I bought this vs buying the Champion version. It also costs less. If anything changes after I start using for real, I will update my review
N**D
Powerful and Quiet Generator for Home and RV Use
This generator is a game-changer! ๐ It's super powerful, yet surprisingly quiet, making it perfect for both home and RV use. The Aceup Energy 4000 Watt Inverter Generator is EPA compliant, so you can enjoy its benefits guilt-free. It's portable, so you can easily take it wherever you go without any hassle. The 149cc gas-powered engine ensures reliable performance whenever you need it. ๐๐กOne minor thing to consider is that the price might be a bit high for some budgets. ๐ธ However, considering the quality and convenience it offers, it's definitely worth the investment. If you want a reliable, quiet, and efficient generator for your home or RV, this one is a solid choice! ๐ก๐
R**Y
Great Buy
Arrived as scheduled with everything but gas. I put oil in and added some gas and it started right up. I ran it about 3 or 4 hours so far with a medium load and it handled it just fine. Trying to wait for the 25 hour break-in to put it a bit further to the test. So far everything is good and is relatively quiet compared to another one I had about the same size. Just have to talk a bit louder than normal when you're next to it. Very pleased so far, I hope it will last for a long time.
K**N
Worst experience ever!
I purchased this generator simply for the low price, huge mistake. I added oil and gas and tried cranking but not happening. I pulled the spark plug and it was wet from the gas so I tested the spark. No spark. I pulled a few more times and the spark mysteriously returned and the generator started. Still haven't figured that one out. When the generator started it ran for three seconds at wide open throttle and died. Tried several more times with the same results. I then noticed that the stepper motor on top of the carburetor had fallen apart. I brought the generator in the house and set it on the kitchen table so I could fish the broken parts from the generator. To my surprise gas began pouring from the generator. Now my wife is pissed. I contacted Amazon to try to get a resolution only to be told it was a nonreturnable item and I would have to contact the manufacturer. Good luck with that! They don't answer the phone number provided and the only response i got through email so far is suggestions on what the issues might be. ๐ค Amazon needs to step in and make this right. Refund my money or send me a working nondefected generator. Update: Amazon did provide a refund! Thanks
J**D
Powerful Aceup 4000 Generator with Impressive Value
Upgrade from a 2000 watt generator to the Aceup 4000 was a game-changer! This generator offers double the power at an unbeatable price point. Running our RV effortlessly with a 15000 BTU A/C unit and all lights on, it impresses with its quiet operation and user-friendly display. The easy-start feature is a winner, and at just around 50lbs, it's a breeze to transport. The build quality rivals models triple the cost, making it a steal for those seeking reliable power on the go.
K**S
Reliable start and decent performance so far
I received the product on time, though it didnโt come with gas. I added oil and some fuel, and it started easily. Iโve used it for around four hours with moderate load, and it managed well. I plan to wait until the 25-hour break-in to test it more thoroughly. Itโs pretty quiet compared to a similar model I had before, but you do need to speak a little louder nearby. Iโm happy with how itโs performing and hope it lasts a long time.
D**K
generator
The item is not damaged, meets the requirements, everything is as described. I RECOMMEND
A**N
Good generator for the price
Have yet to use long-term. First impressions that thing works great quiet, starts first pull. Then runs everything I need.
R**A
Muy completo
Este generador es mas pesado de lo que se ve, pero incluye todo lo necesario para poder, empezar a utilizarlo de inmediato, lo unico que me falto fue el adaptador para el tanque de gas ya que en mexico no tenemos ese tipo de conexion pero una vez lo tuve no me falto nada mas
F**L
Excelente
Muy bueno, fรกcil de prender, ahorra combustible, excelente precio
W**C
Great Product and for the right price
Here are the summary of my experience with this product: - Delivered quickly and the product is well packed. - Very easy to understand user manual. - The included engine oil is a conventional SJ-10W-40 which is very thoughtful of the manufacturer and is perfect for the break-in period. You can choose any other fully-synthetic oil to use after the first 25 to 30 hours of initial break-in. - The Dual fuel generator version can actually switch fuels automatically. It will prioritize propane and will switch to gasoline as soon as the propane tank is empty. - The pull start recoil works smoothly. It does not require more than 2 pulls to start the generator either on gasoline or propane. - The unit is well-built and it offers some of the features that even the 4000W Champion does not (like a digital display, digital fuel gauge, and oil tank filter). - Theafter sale customer support is also very good for a new brand. If you need immediate support then Champion cannot be beaten. Otherwise, AceUp team is responsive enough for non-uegent inquiries. It is worth mentioning that the team is located in Asia and they respond to email inquiries MON-FRI on their time zone. The team is very knowledgeable and responds daily. - Overall, I am very pleased.
Trustpilot
5 days ago
1 month ago