4000 Watt Dual Fuel Inverter Generator with Bluetooth® Control Start and Display, RV Ready, Electric Start, Quiet for Outdoor Camping, Home Backup, Garden，PGMA Compliant

(Updated review:) I am changing my review to 5 stars as after correspondence with MaxpeedingRods and going through their checks they have stood up and done what’s right and stood behind their product by replacing our Generator. I believe that there was a fluke issue with the original one and it originally worked 100% only to later loose the electronic start function. I have no reason to believe that this is a systemic issue and think that it was just our luck of the draw to have that issue. The new generator works flawlessly. When a company like MaxpeedingRods stands behind their product we can tell that they are a company that we would like to continue to do business with and recommend their products to our family and friends. For full disclosure I paid for the first generator out of pocket full price and with the issue and going through their resolution they replaced it. Knowing this you can feel safe in spending money with them for an investment such as this. Thank you MaxpeedingRods! (Original review for reference:) I am going to say it’s a wonderful product with at this point questionable support. I am going through their support for the last week with limited effective responses. If this changes I will change my review to 5 stars but at this point the electric start has failed and they are sending me thru the same tests multiple times. When it arrived everything worked flawlessly and now only the electronic start functions do not work and I eagerly want a resolution but so far I’m just getting scripted responses from the app at first and now via email. If they help me resolve this it will truly be a quality generator however the support has to stand up and provide true assistance for this to happen. I believe they can if they are willing. (Final thoughts) as you can tell if you read everything they did stand behind their product and I once again commend them for it.

Started great, good looking machine, remote start is awesome. Now the bad, after putting in new oil and hooking it to a brand new freshly filled 30lb LP cylinder the generator ran good for 20 minutes and then shut off on its own. Now it shuts off after less than a minute of running every time. Flashes a C02 or maintenance light once and shuts down. It's outside, so a C02 issue is non-existent. Im talking to the manufacturer through their app, slow responses but promising to "send me parts" the last thing I want to do is tear apart a brand new generator to fix a factory lemon. I bought this for an ice fishing trip and I leave this week, now I'm in a bind. Don't buy this unless you want to be frustrated and work on a brand new machine after 20 minutes of idle time.

As a bare generator it worked well. Powered my 12k BTU portable AC, fridge, some electronics and a blower fan with a 20lb propane tank for over 12 hours no hiccups. The major issue was complete loss of bluetooth functionality, the app and even the onboard lcd screen displaying usage % etc. This left me in a bit of a limbo with hurricane beryl as I wasn’t sure how it would fare overnight. Luckily we got power back in 16 hours. I seriously needed bluetooth to monitor it from the other side of the house while it was on the front porch. It was never exposed to any rain. I emailed [email protected] and exchanged 4 emails. One asked to send them a video of the unit not displaying the bluetooth LED which I did. After that I was told to wait 1-2 business days and one week later I have still not heard a response. Even with the $200 coupon this unit sits at a pricey $899. At that price point the main reason I purchased it was limited availability of other bluetooth-enabled generators. Really you are limited to this one, the MXR4000, Honda 2200i, Ecoflo and Ryobi. Apart from the other MXR none of them are rated for more than 3000 watts. So I bought this one. Now if bluetooth is unreliable and nonfunctional, at $899 you can most definitely proceed with buying a much more powerful inverter generator lacking bluetooth well within 6000W territory. I will update the review and rating once I hear a final usable solution from MXR. For now, I find 3 stars generous simply as it kept us reasonably comfortable with a cold fridge for 14 hours (which one can argue any number of other generators could have done and more at $899).. UPDATE: Customer service was generous in offering a partial refund for the bluetooth malfunction to be used towards the bluetooth surge plug. Happy with their service, increased to 5 stars. They offered to replace it but since it functions as a regular generator I opted for a bluetooth plug and only lose the remote start capability which is fine

I needed a generator for a small off grid cabin to charge up the lithium battery pack and I decided to go with the dual fuel MXR4000GT and it has been great so far. Starts up easily on both gasoline and propane even in cold temperatures. I saw a few people mentioning theirs leaks fuel (user error!) that happens when you fill the tank beyond the red bar at the top of the tank... Due to the unit being compatible with a fuel transfer pump there is an overflow to avoid pressurizing the fuel system. Now the 1.1gallon tank is a bit on the small side and if you are always running it like I am (60-85% load) you will only get 2-3hrs on the fuel tank without the fuel transfer pump addon. But that's why I opted for the dual fuel version so that I can run it on 30lb propane tanks with the same 60-85% load I'm getting around 18hrs per tank. I did the effeciency calculations: 1.1gallons of 91 produced 5.5kwh which is 14.8% effeciency and a 30lb propane tank produced 33.5kwh which is 17.8% effeciency. So definitely better running it on propane. It's also pretty quiet depending on the load with it only getting relatively loud above 2000w. In terms of max power output it will hold 3300w @119v charging batteries on both gasoline or propane at 700ft AMSL pushing even slightly beyond that bogs down the engine before tripping the overload. But as always for longevity continues loads like battery charging should be kept below 85% or ~2700w which this unit does happily. After the 25hr break in period on dyno oil I used amsoil 4 stroke synthetic 10w-30 which made a dramatic difference in cold start performance for those using this unit in cold regions. Overall I'm happy with the unit considering the price and features compared to a 3x as expensive Honda with similar running watts. It comes with a 2 year warranty as well. And weighs just 50lbs so it's easy to move around compared to similar spec generators

Product does not charge its own battery, battery slowly discharges while running until display and Bluetooth stops working. Generator seems to run ok and is quite, Bluetooth was nice when it was working but it would not restart using Bluetooth after it was shut down via Bluetooth. Cold starting using the pull cord was not as great as some reviews stated at -20C would not start after several pulls needed to be warmed up then started first pull. Hoping this is just a defective unit and the vendor will ship a new one. But they have not responded to my inquiry. I will start return process through Amazon if they don’t respond.

The inverter would no longer run I contacted the supplier and they send an other new unit I paid for shipping only Great product

Works good, not too heavy. Electric start.

Although dealing with customer service was a bust as starter is defective, however, it has outlasted any of the other generators that i have tried. Lower rating is only because I could not get any satisfaction when I attempted to get a replacement starter after weeks of trying. It does start up easily with pull cord.