4000 Watt Inverter Pure Sine Wave Power Inverter 12V to 110V 120V AC, 7000W Surge Peak Power for 2s, 2025 New Invention, FCC Approved, Compatible with Lithium Battery,for Car Off-Grid Solar RV Vehicle
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Availability:
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Wednesday, Sep 24
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Size: 4000W
Features
- 4000W Pure Sine Wave Inverter with 7000W Surge Peak Power for 2 SecondsThis is 4000W continuous output power inverter pure sine wave with 7000W surge peak power for 2 seconds, and very suitable for high-power inductive loads, such as air conditioning, double door refrigerators, water pumps, heaters, and other electric tools.
- 2025 New Upgraded Adjustable Input Voltage functionThe new 2025 upgraded 4000 watts pure sine wave power inverter comes with an adjustable input voltage function, making it more compatible with lithium batteries. This capability reduces battery draw, protects battery health, and extends your battery life. (Please refer to the manual to customized input voltage)
- LCD display and screen restThe LCD display shows the batteries status, input dc voltage, output ac voltage, load watts and some protection codes. After one minute of no operation, the LCD screen will shut down. LCD is very convenient to know the usage status of the inverter.
- Battery Monitor Remote Controller & USB fast chargerThe 30ft 4P4C RJ10 remote controller is more convenient for you to turn inverter on/off far away. Remote battery monitoring helps you know the battery status at any time and avoid battery damage caused by frequent low power. PD36W USB-C and 3.6A USB-A two different types ports are very convenient for us to charge and power smartphones, entertainment devices, small-sized appliances, and other mobile devices, such as floodlights, TVs, laptops, tablets, starklink, etc.
- Upgraded 8 Advanced Protections4000W pure sine inverter including Short circuit protection, Input over-voltage/under-voltage protection, Output short-circuit protection, Over-load protection, Over-temperature protection, Low-input alarm. And 2025 upgraded Low-Output Voltage Protection also provide more stable voltage protection to your loads.
- Advanced Inverter MaterialsThis pure sine wave inverter 4000w chose durable large shell aluminum alloy case, much better the power inverter from drops and bumps, also provides better heat dissipation than other inverters. Built-in ETL listed transformer, UL458 listed fuses, UL458 listed PCB, also protect you from fire and electric shock. And this 4000 watt inverter has been FCC approved, providing advanced anti-interference technology and pure sine wave to your AC appliances such as speaker, radio, and other radio related appliances.
- More Widely UsedWidely applications for Indoor and outdoor uses- Ideal for RVs, Boats, and power failure emergencies with this 4000W heavy duty inverter, equipped with 4*AC outlets with a 40A hardwire terminal for high power appliances, such as microwave, a/c, coffer maker, freezer, fridge, pump, laser printer, electric tools, etc.
- What You Get An 4000w pure sine wave inverter, a 30ft remote controller, a instruction manual, 4 pairs of Battery Cables, a friendly and patient customer after-service. 18-Months Warranty. Product liability insurance is covered by AIG insurance company. And support 24/7 real-person customer service contact.
Brand: VOLTWORKS
Recommended Uses For Product: Home, Office, Vehicle
Power Source: Solar and Battery Powered
Wattage: 4000 watts
Model Name: VS-4000KAR
Product Dimensions: 14.3 x 8 x 6.8 inches
Item Weight: 15.43 pounds
Item model number: VS-4000KAR
Date First Available: August 8, 2024
Manufacturer: VOLTWORKS
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 24
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Size: 1500W
In a sea of look-alike inverters from unknown brands on Amazon, how does one decide what to buy? This is a detailed review of a Voltworks 1500W continuous (3100W 2 sec peak) inverter, why I bought it and how it has performed over the first month. Why Voltworks: I chose this company as it has been around for several years and has an online reputation for producing decent products and standing behind its 18-month warranty. I believe that it also manufactures Giandel and Leesky inverters, offered with slightly different features and prices. Though my inverter has had no problems so far, I asked customer service several questions and received answers within a day or so. “Alice” was clearly not reading from a call-center script, with detailed replies to difficult questions. In the box: The cardboard box has internal foam for protection, and includes the inverter, cables, remote control, spare fuses, and user manual packed neatly. The inverter itself measures approx. 8x13x4”, weighs 8.6 lbs, and appears solidly built — all metal and with heat-disippating fins all around. The 2’ red and black battery cables are paired 16mm2, which works out to almost 2AWG, i.e., better than the 4AWG cables in the Amazon listing. The wired remote control has 4 screws for attachment, 2 each of 2 types for use on different surfaces, and 3 spare 40A fuses are also included. A sheet of paper states that included pads are to be attached to the inverter base plate, but mine came with 4 cushioned pads already installed. Initial start-up: A key thing to remember is that before using it for the first time (or after a long period of no usage), the inverter must be run without a load for 30-60 minutes. This is to allow the capacitors time to charge properly, otherwise one risks the possibility of an explosion or reduced life expectancy. After an initial 30-minute warmup, the inverter did make some sound on the first load test, but quieted down on subsequent trials. Loads tested: I am using it in a house emergency generator system powered by my Toyota Prius, whose 12V circuit can spare a continuous 1200W at best, far below the inverter’s 1500W rated capacity. It is good practice to select an inverter rated 25% above its anticipated load anyway. With some combination of full-size fridge, small space heater, rice cooker, fans and lights (not all at the same time), I tested continuous loads up to 900W and initial surges well above that when appliances were turned on, as measured by a watt meter that shows range. I did not test the USB or hardwired outlets. System controls: The inverter’s low voltage cutoff system worked as stated in the manual, switching off momentarily at the voltage I set and restarting seconds later when the voltage had increased to normal levels. My setup does not need the remote control with 15’ cable, but it worked fine. The inverter’s fans were not noisy, and turned on only when the load or temperature exceeded certain levels. The approx. 1”x4” display has lots of data but was easy to read, and output wattage shown was consistent with that of my external watt meter. Connections: Input cable connections are covered with plastic caps for protection from shorts — a nice touch, though it means that cables to the battery can exit in only one direction if the (optional) caps are used. I spliced an additional cable to the included 3’ 14AWG ground cable and connect it to the earth with an aluminum tent peg. Note that per a Voltworks online video, opening the inverter to replace fuses requires unscrewing the output side plate’s 4 screws and sliding out the center panel of the top plate, after disconnecting the cable feeding the display. I am not sure this will be quite as easy as demonstrated. Potential improvements: * The almost flush, black power switch on the black side plate is hardly visible, especially in low-light emergency conditions, and should be a brighter color. * The 28 page user manual is far better than those of some competitors. However, it does have several errors; I was told that an updated version is being rolled out. * The included battery cables, while adequate, do not match the quality of Voltworks cables I purchased for use elsewhere in my system. Those are rated for 105C, with thicker and better-finished heat shrinks, and smaller 10mm lugs. Conclusion: All in all, I am pleased with this purchase and will rate it 5 stars for initial product quality and responsive customer service. I hope this review has been helpful, and commit to updating it as my experience warrants over the next few years.
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Reviewed in the United States on September 1, 2025 by CDS
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My initial experiences with VOLTWorks were less than ideal, primarily due to an unusual incident involving a malfunctioning unit that produced louder-than-expected humming sounds. I reached out to VOLTWORKS support, who proved to be both helpful and diligent in their responses and follow-up communications. Subsequently, I was provided with a replacement unit. After a disappointing experience with an earlier model, I put the new device through rigorous tests under various load conditions. Its real-world performance was conclusively demonstrated during a recent power outage caused by a wildfire in my home state of New Jersey. The inverter effectively powered crucial refrigerated items, preserving medication and food, for over 24 hours without fail. Throughout this duration, it functioned flawlessly, showing no signs of issues such as noise, buzzing, or overheating. This device is exceptional and lives up to the high standards I had anticipated.
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Product works REALLY well, can't complain about it's functionality one bit! Plug in and USB options work great and have had zero issues. The only issue I have is that the screen is only visible if you are looking straight at it, if you look at an angle then you can't read it at all, just looks blank. Other than that, it is very sturdy and work remarkably well!
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Reviewed in the United States on July 8, 2025 by Mitch U.
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