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โก Power up quietly, run longer, and stay ahead of the outage curve!
The Aceup Energy 4000 Watt Inverter Generator features a robust 149cc 4-stroke engine delivering 4000 peak watts and 3200 running watts. Designed for portability and quiet operation at just 60 decibels, it runs up to 5 hours on a single 1.32-gallon tank. Equipped with an intelligent digital display and multiple outlets including RV-ready connections, itโs EPA compliant and perfect for home backup, camping, or RV use. Parallel capability and fuel-saving eco mode make it a versatile, reliable power solution backed by a 2-year warranty.



































| ASIN | B0CWN8C57T |
| Additional Features | Automatic Shut Down, Digital Display, Extra-Long Run Time, Fuel Gauge, Super Quiet |
| Best Sellers Rank | #35,455 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #109 in Outdoor Generators |
| Brand | Aceup Energy |
| Brand Name | Aceup Energy |
| Color | Yellow and Black |
| Customer Reviews | 4.5 out of 5 stars 247 Reviews |
| Engine Displacement | 149 Cubic Centimeters |
| Engine Power Maximum | 7 Horsepower |
| Engine Type | 4 Stroke |
| Frequency | 60 Hz |
| Fuel Type | Gasoline |
| Ignition System Type | recoil start |
| Included Components | Manual, Oil funnel * 2, Spark plug wrench |
| Is Electric | No |
| 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 | AI4000s |
| Model Number | AI4000s |
| Output Wattage | 4000 |
| 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 | 1.0 Count |
| Voltage | 120 Volts (AC) |
| Warranty Description | 1 year limited warranty |
| Wattage | 3200 watts |
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.
P**.
ABSOLUTELY AWESOME!
Purchased this generator to replace the 2000 watt generator that stopped working. The Aceup 4000 has twice the power at an amazing deal!! This generator is quiet and runs our RV with a 15000 btu a/c with all the lights on with no problem! I love the display. It shows everything. It starts first pull. If youโre wanting a powerful generator at an incredible deal this is the one to purchase. It weighs around 50lb and is easy to move around. The build quality compares to generators that would cost you 3 times the amount of money!
K**E
Reliable small engine so far
Able to start quickly after adding oil and gas, I used it for a few hours with no issues. I've been cautious during the break-in period but am satisfied with its quiet operation compared to a similar model I used before. It just requires speaking a little louder nearby. Happy with how it performs and hoping it will stay durable over time.
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
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.
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.
S**.
20 hours of continuous m use and still going
This generator is great, after adding oil and gas it started right up, I am currently under a blizzard with no power and I am running my heat furnace, charging devices and my fridge with no problems and on ECO mode it lasts 5-7 hours on a full tank. Iโm on about 20 hours of use and before refueling I let it cool off for about 30 min and then start it again. No issues so far.
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
D**K
generator
The item is not damaged, meets the requirements, everything is as described. I RECOMMEND
P**.
You won't go wrong with this Genny!
This is a great generator. I did a whole lot of research on the different generators based on longevity, durability, cost, fuel efficiency, Real wattage and I found this one. I needed an inverter generator because I was using sensitive electronics while on the road in my van. This generator runs my smart tv, PS5, electric heater in winter, and portable AC in the summer. It works flawlessly. Real world run time at half load is about 9.5 hours (I run it on Eco mode) and the tank is just a little over 1 gallon. This unit was $559 with an instant $50 off coupon, so $509 CAD, which was great for this size of inverter generator. This unit starts on one pull every time. You won't go wrong with this unit.
D**N
Generator works amazingly well
Needed a generator for my son and I as we are soon building 2 cabins . It arrived in pristine condition. Read the instructions and filled it with oil .Then topped up with gas , turned selector to choke and gave it a pull .. it attempted to fire first pull, second pull fired right up and turned selector to run and it purred away . Can not get over how QUIET this runs , can talk normally with it running and can be heard easily. Amazing generator for its size and power . Like that it has several different power options so covers everything we need it for . My son is thinking we might grab a second one .
D**N
Good value for money
Arrived quickly and undamaged. Startup was uncomplicated with only a few pulls of the starter rope. Performed a couple of hours of break-in run time with two oil changes to eliminate any metal residue from break-in. Unit is louder than I had hoped, but in a workable range. I might invest in sound dampening housing to keep good relations with neighbors in the event of a power outage. We are home emergency users, not RV users. Features are excellent, including a clear set of performance readouts. Good value for money IMHO.
M**N
Good price and capable
So far very impressed. Right out of the box I added the oil and fuel and it started In a couple pulls. I purchased it specifically for RV use. I like the digital display. I it running the AC in my 5th wheel and it works great. I wish it was a little quieter but itโs ok. The output was only 40% to power the trailer and run the AC
Trustpilot
3 days ago
4 days ago