Ampinvt 6000W Peak 18000W Pure sine Wave Inverter 48V DC to 120V 240V AC Split Phase Output, with ac Battery Charger, Low Frequency Off Grid Power System, for Sealed Gel Agm Flooded Lithium Battery

This inverter is a low frequency inverter meaning it is larger, due to the heavy transformer inside. The advantages is having a peak power rating that's higher than lighter budget high frequency inverters. Also, your max load can be unbalanced. In a high frequency 6kw inverter, it's really two 3kw inverters, one for each phase. That means each leg can only supply 3kw max, even if the other leg has no load. With a low frequency inverter, there's just one 6kw inverter driving a transformer that splits the phase. So, you can draw 4kw on one leg if needed. This was able to handle a 1hp jet pump, the kitchen stove and microwave easily. (not all at once) The fan is always running, but at low speed. The fan speeds up when the load is increased. Speed seems to be based on load, not temperature. This nice if you're trying to sleep, vs a fan that continuously cycles. The price is lower than other inverters, but I can see the quality inside and out. It's just a little big and if size is an issue, make sure it will fit. The unit comes with two flexible cables that weren't throw-away. I'm using LiFePO4 batteries, so had to set the charge voltage to 51.2V on the custom setting. Though the manual says "charge" voltage, it probably means maintenance voltage, looking at voltage spec given for AGM and Gel. It you don't understand the different modes, the manual adds more info, but it's still unclear. Also, this can be used in a solar application, but isn't a solar style inverter. The internal charger runs off 240V AC and not your panels. You would need a separate charging system that solar inverters would supply. Given the price of a separate 35A charger, this inverter is a good deal.

The inverter seems to work. I was able to put a large load on it, so that is OK.I have asked Ampinvt for documentation that describes the RS485 protocol, but they will not give it to me. This is very annoying because I need to control the inverter from my own computer. I have had to order the remote control, which is taking way too long to arrive, so that I can reverse engineer the communication between the two on the RS485 cable.I have sent several emails to different email addresses and have gotten stupid responses like telling me that the remote control will let me control it remotely, and "Sorry for that i can got that information."UPDATE: I attempted to connect this to "shore power" in my RV. The input has HOT1 and HOT2, no neutral or ground. Ampinvt tells me that it can only be connected to the two legs of hot that are 240V. This means that this split phase inverter cannot take split phase input. It is split phase output so that you can drive 2 different legs of 120V, but it cannot take 1 or 2 legs of 120V input.UPDATE #2: I attempted to clarification from Ampinvt regarding the ground and neutral connections because their connection documentation is incomplete. Their connection information does NOT include the ground connections or anything mentioning the neutral bond to ground that the USA code requires.They have NOT supplied me with a proper connection diagram that includes the ground connections, and they state in their email that you cannot connect the shore power ground to the RV chassis and also have the battery negative connected to the RV chassis at the same time. They claim that many RVs have this inverter installed in the USA, to which I responded that ALL of those RVs have battery negative connected to the chassis and that no sane installer will leave the shore power ground wire unconnected.I am getting an equally confused response regarding the neutral to ground bond that UL485 requires. This is a simple safety thing that gives the HOT1/HOT2 outputs of the inverter a path through the RV chassis back to neutral in the event of an accidental short. This ensures that in the event of a short, a person is not shocked when touching a metal part of the RV.UPDATE #3:It seems to have failed. It seems to work, but the amperage swings wildly when it charges or with loads. When it has nearly no load on it the DC amps oscillate between +2A and -10A. When it charges, the DC amps oscillate between -1A and +65A! I am afraid to run two appliances (3000W), because the amps will swing between over 200A and zero.After more than 20 emails over several weeks, where I provided the DC current sampled every 4.87ms that shows the DC current is oscillating at 60hz from zero to 2x of the load, they still failed to comprehend the problem. Ampinvt support is no better than random people, that know nothing about electricity or inverters, replying to emails where they read only a few of the words, and never refer to previous emails in the thread.I took it apart and found 3 burned chips on the logic board. I emailed a photo and finally they are sending replacement parts. They sent these parts via surface transportation! If your inverter fails, it will be a nightmare getting warranty support and you might need to be the one to swap the parts.

I had a problem with the inverter, I went to the customer service chat site and I got a response from them the same day. They were able to fix the problem, quickly. I use the inverter for my home solar system, it stopped working after 30 days the company sent me a replacement in less than 5 days. 2 months later the replacement inverter stopped working, the company honored the warranty and sent me a replacement mother board, I only had to pay for shipping.

Not hooked up yet, but this thing is impressive! This is not a toy. Should put it beside a lawn mower for visual scale. If weight and size are an indicator, I am going to be very pleased. Should be hooked up in a week or so, so I will come back to let you know if it disappoints. If I write nothing more, assume it is as great as I assume it will be.

I just received this inverter and have not tried it yet. This thing is massive and heavy. Looks like a descent product.However, there is missing screws. The frame is bent and damaged and there is no instruction manual. Not happy about all of that. This is why I am only giving it 2 stars right now.I am going to see how it performs but, I would not order again.

I gave it a 3 because I didn't really get to use it. I hooked up the power, it turned on...3 seconds later it turned off. Never to come on again, ordered a replacement.

The pure sine wave inverter has become an essential component in my power setup. Its ability to produce a clean and stable electrical waveform ensures the safe and efficient operation of sensitive electronics. Whether powering laptops, medical equipment, or other devices, this inverter provides a reliable and high-quality output, reducing the risk of damage. The versatile design makes it suitable for various applications, from camping to emergency backup power. The efficiency and precision of a pure sine wave inverter make it a must-have for anyone seeking a reliable and consistent power source for their electronic devices.

Works like a charm, its pretty big but runs quietly and efficiently ! Just converted my rv to solar and its doing its doing its job.