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ZETAWALE

2500W Pure Sine Wave Inverter with Built-in ATS 12V DC to 120V AC for RVs

Based on 462 reviews
Condition: New
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$229.99
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Nov 5
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At a glance

Condition
New
Set
12V-2500W Built-in ATS
Model
ZT-GT-RV2500
Dimensions
14.09"L x 9.53"W x 4.29"H
Weight
8.2 lb
Color
black
Power Source
Battery Powered
Warranty
24 Months Warranty

Features 8

  • 2500W Pure Sine Wave Inverter Reliable Power for RV Appliances- The 2500W pure sine wave inverter converts 12V DC battery power into clean 110V/120V AC electricity, delivering 2500W continuous output and up to 5000W peak surge power. Designed to power compatible refrigerators, microwaves, coffee makers, TVs, laptops, and other household electronics, its pure sine wave output helps reduce electrical buzzing and interference compared with modified sine wave inverters. Ideal for RVs, camper vans, motorhomes, and off-grid battery systems. Requires an external 12V battery, sold separately.
  • Built-In ATS Automatic Shore Power & Battery Switching- Featuring an integrated Automatic Transfer Switch (ATS), this 2500W inverter automatically selects between external AC shore power and battery-powered inverter output. When compatible shore power is available, the unit supplies AC input power to connected loads through bypass mode. If shore power is interrupted, it automatically switches to inverter power from the connected 12V battery, then returns to AC bypass mode when shore power is restored. Enjoy convenient power source switching without manually changing connections. Transfer time may cause a brief interruption to sensitive equipment.
  • Designed for RV Electrical Systems & Hardwired Installation- Built for RV owners, camper van builders, motorhome travelers, and off-grid enthusiasts, this inverter with ATS features a hardwired AC input connection for integration with compatible shore power and onboard electrical systems. The Live, Neutral, and Ground connection design supports permanent installations in properly configured RV power setups. Whether you're parked at a campground with shore power or camping off-grid, the automatic switching function helps simplify AC power management. Installation should follow the product manual and applicable electrical requirements.
  • Built-In Heat Sinks, Intelligent Cooling & 5-Layer Protection- Designed with internal heat sinks that help transfer heat away from key electronic components, this inverter uses a coordinated cooling system rather than relying only on the outer housing for heat dissipation. Intelligent cooling fans help remove accumulated heat during operation, supporting more consistent performance under demanding loads. Built-in protection against overload, over-voltage, under-voltage, overheating, and short circuits helps safeguard the inverter and connected equipment during abnormal operating conditions.

Description

1. What is the function of a battery inverter? A: The battery inverter is pivotal in solar energy systems, as it seamlessly transforms the direct current (DC) power from solar panels into alternating current (AC) power, ensuring compatibility with the electrical grid and enabling usage in diverse appliances and devices. Its absence renders the electricity from solar panels unusable. 2. What's the difference between a Modified Sine Wave (MSW) inverter and a Pure Sine Wave (PSW) inverter? A: The MSW inverter is very noisy and has a rugged waveform which can negatively affect how your appliances work On the other hand, the PSW inverter features a cleaner output, with a smooth and consistent waveform that is even cleaner than the grid. Inductive loads, such as microwave ovens and motors, operate faster, quieter, and cooler when connected to the PSW inverter. Note: We used to measure the waveform quality using THD (total harmonic distortion). PSW inverter: less than 3%; The grid: less than 5%; MSW inverter:20%-40%. 3. Can this ZETAWALE inverter be connected to 120V shore power? A: Yes, this inverter can be connected to 120V shore power, it has the capability to power your appliances efficiently and reliably. ZETAWALE delivers reliable power solutions for RV adventures, off-grid living, emergency backup, and daily energy needs. Featuring pure sine wave inverter technology, smart protection, and easy-to-use designs, we help customers convert power safely and efficiently anywhere. Designed for explorers, DIY enthusiasts, and families, ZETAWALE combines performance, durability, and innovation to keep essential devices powered when it matters most. Yes. ZETAWALE focuses on durable power solutions with advanced pure sine wave inverter technology, intelligent protection systems, and strict quality control. Our products are designed to deliver safe, stable, and reliable power for RVs, off-grid living, emergencies, and everyday use. Our team is always ready to assist 24/7 dedicated support. For any questions or assistance, please reach out through our after-sales email or official website. Lightweight and flexible, this solar panel conforms to curved RV roofs for convenient power generation on every adventure. Dependable backup power for refrigerators, lights, TVs, laptops and other compatible essentials in cabins and workshops. Built-in ATS switches between shore power and battery power, keeping compatible RV essentials running wherever you travel. A flexible solar panel and 2500W ATS inverter create a practical RV power solution for camping and off-grid travel. Reliable mobile power for work lights, laptops, fans and compatible tools in work vans, trucks and jobsite setups. High-capacity power for compatible tools, appliances and essential equipment in garages, trucks and backup power setups. Power your laptop, TV, lights and small appliances with clean 120V AC power during RV trips and outdoor adventures. Efficient 48V power for refrigerators, lights, TVs and electronics in off-grid cabins and battery-based energy systems. Powerful 48V energy conversion for compatible workshop equipment, freezers, lighting and off-grid backup applications. Keeps your sump pump running during outages with clean 1500W power, automatic backup switching and a built-in 25A charger.

Specs 25

Brand ZETAWALE
Recommended Uses For Product Home, Car, Power Outage, Vehicles, Truck, Outdoors, Boat, RV, Trip,Off-Grid Solar
Power Source Battery Powered
Wattage 2500 watts
Model Name 2500 Watt
Number of Outlets 2
Input Voltage 12 V DC
Standby Power Shutoff 91%

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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.

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Top Amazon Reviews

Great value for money, works as expected.
Set name: 12V-4000W pure sine wave inverter
I am used to expensive marine grade inverters that produce a real pure sine wave. So i was not expecting a huge amount from these, as the price is 1/10th of the units i am used to. The units i am used to have been working away 24/7 for over 20 years with no issues, a tough act to follow. I got 3 of these for a house project, all 3 arrived properly packed. I unpacked and tested all 3, they all worked perfectly, no issues. Setup is easy, as would be expected, the hardwire connections are not really industrial grade, but they are adequate (barely). The remote is nice, easy to read in daylight or night. The battery percentage is not calibrated for LiFePo4 batteries, so do not use it to give you an accurate SOC status. But in truth you should never use the inverter to give you that data, you must get it from the battery itself, as the inverter will measure line voltage including the drop due to its own load. Use a Victron battery monitor or similar. I ramped up testing on each unit, from light loads to full bore, in incremental steps. Up to about 1200w it produces 120VAC from 1200 to 3800w it produces a clean and steady 118VAC 60hz. I have seen reviews where there were complaints that the voltage dropped below 110VAC on medium to high loads. My units worked as expected, but you must use suitable DC cables to power the unit. I tossed the DC cables that were provided in the box, they were worthless. I used properly made short run 2/0 AWG marine cables to power them, If the run was longer (>6ft) i would use 4/0 cables instead. The fan is fairly noisy, only has 2 speeds on and off. A variable speed fan would be a much better solution and would have added about 10 cents to the build cost. The fan came on around 1500w for my tests, but it would depend on the ambient temp for each case. As i planned to have these in a separate equipment room, the fan noise is not an issue. There is a slight delay ramping up the output power, but nothing i tested (heaters, induction cooktops, hair drier, tools, etc) complained or failed to work correctly. The delay you see on is just in the display updates, rather than the power itself. I put an oscilloscope on one of the output ports when it was producing 3000w of power, the sine wave is still clean. As someone else mentioned there is a tiny amount of top wave clipping, but the waveform is sufficiently clean to power everything i tested. I do not plan on using these for computers etc, for that i installed a Xantrex Prosine2.0, cost far more than all 3 of these, but i know they are totally clean waveforms. The waveform on these inverters is actually better than the Honda EU2000/EU2200/EU3000 generators. I cannot speak to the longevity of these inverters. If i find failures or issues down the road, i will update this review accordingly. So far i am very happy with them. ... show more
Reviewed in the United States on April 6, 2026 by netzien
This actually works 😁
Set name: 12V-2500W Built-in ATS
I don’t write reviews often This inverter and I have had a great first impression O yea it switched from city to back up and back seamlessly for my (back up battery for pellet stove diy project) Yes it is pure sign wave Yes it switches fast with out interference and yes it had a neutral to ground bond auto switching relay so no floating neutral This review is based on temporary test to see if unit would work After full installation and some real life scenarios I will update ... show more
Reviewed in the United States on October 4, 2026 by Dick Tracy
Solar panels, 220v panel and circuits, Zetawale inverter juice!!
Set name: 48V-2500W pure sine wave inverter
I can't say enough good things about this 48v Zetawale inverter. I bought two so that I can supply a 220v panel and added a Victron 48v charge controller. All three units worked the first time I turned them on! Now I have a 220v panel with 2500 watts on each leg. Each unit has a screen to tell the battery charge and usage. If you are thinking eg4, skip the headache and buy this Zetawale inverter. I can't say how long it will last but it sure is good to have a system work the day you install it. ... show more
Reviewed in the United States on October 2, 2026 by Gracie
Really good but could be great!
Set name: 12V-1500W pure sine wave inverter
Purchased the 1.5kw to replace a 1kw inverter that ran just about everything in my RV EXCEPT the 900w microwave. The remote control is the only issue I have with it it's quite thick for mounting in the relatively thin RV walls. I may gut it and make a flatter, surface mount remote control.. If they produced a Bluetooth + app controller I would buy it in a heartbeat! I do wish the display showed AC watts, but for now I do the calculations. The biggest reason I chose this unit was the wired AC out connection! I have a 3 input transfer switch (Shore, Generator, Inverter). The hard wire leaves the 4 outlets on the unit available (but I don't use now that the transfer Switch takes care of that). My Coleman Mach classic runs great on the inverter! So does the microwave & coffee maker BUT NOT At The Same Time!!! It handled starting inductive loads with ease. I suggest increasing the size and type of the DC cable. I needed 1m to reach the battery. I used 4 gauge pure copper tinned wire. The voltage drop across the wire at full load is <.4v, much better than the wire that came with it. Don't use Aluminum copper clad cable. It is prone to corrosion and failure at the connectors. Yes aluminum is less expensive but... ... show more
Reviewed in the United States on November 22, 2025 by P. Rowe
Great value, easy install, powerful.
Set name: 12V-2500W Built-in ATS
I bought one of these about six months ago for my RV. It works flawlessly. I can run the microwave while my wife uses her hair drier. It recently failed for no reason I could identify, so I e-mailed customer service late in the day Saturday 9/5/26. Based on previous experiences with many other vendors, I was prepared for a contentious and time consuming process. I got a response within 12 hours! They asked a couple of basic technical questions, and I was asked to provide my purchase invoice and to run a basic test. I responded but forgot to attach the jpegs, but I got a response Sunday, indicating that they were shipping me a new unit immediately, but could I send the jpegs requested? (I did, of course). I just got the new unit today, Tuesday 9/8/26. This is a very good company! Customer service that others should emulate. ... show more
Reviewed in the United States on September 9, 2026 by Rodolph Millan
48V 4000 Watt Pure Sine Wave Inverter - Overall Great!
Set name: 48V-4000W pure sine wave inverter
Only a couple of issues and neither is worth losing a Star for. My unit arrived without any sort of manual in the box, packaging was clearly a new unit, simply missing any sort of paperwork. No problem, went to the makers website; ooops no manual online BUT an easy to find contact and got a great response same day - now that's awesome service! I've set up enough of this type of unit that a manual wasn't critical for operation, very self explanatory BUT another brand I have in another building does NOT allow you to mount vertically. Simply inquired of the maker and YES you can mount this vertically. I had two reasons, simply a better fit in my location of choice and most important, it has two very nice cooling fans but for low power usage I want convection to carry moderate heat and save on a tiny bit of power when appropriate --- this 48v 4000w unit will need the fans facing the ceiling to achieve this minor detail. The one item I might drop a star on but won't; at my age of worn out joints, lol, the hardwire AC out is VERY inconvenient to access. It's NOT standing on my head that is the issue, it is tilted back toward the mounting board thus must bend the wires going in to the absolute perfect angle and it's so close to the mounting board that you have to feel around to get the wires in place prior to tightening the screws. This design could definitely use some work but hey, done right, it's only a one time endeavor. So far it's performing precisely as expected but I will note that I have not yet put a major long load on it. I did throw an 80 volt chainsaw battery on the charger, a 13.5 amp power saw and a 6.7 amp hammer drill on it simultaneously for a full minute and the inverter had no issues at all. Granted the cooling fans engaged but it never waivered. ... show more
Reviewed in the United States on February 6, 2026 by MMAC
Works as advertised
Set name: 12V-2000W pure sine wave inverter
Excellent inverter. Constant Ac 120 volts. No strange noise coming out of the inverter.
Reviewed in the United States on September 4, 2026 by Francisco
DO NOT SWAP THE SIGNAL CABLE!
Set name: 12V-2000W pure sine wave inverter
Works. I was able to test Coffee Maker, circular saw not under cutting load, and 16" chain saw all successfully. Unit was plenty quiet. Cons - I could find no online documentation from the vendor. I found a generic site that had some stuff but not all the details. Package included OK paper documentation. Oddities - The included power cable is metric 1x25 which google indicates is about 3 AWG and is almost 2 ft long but I only got this detail after receiving the paper docs. I was also annoyed that unit itself has no included display. I was also annoyed that the published dimension for the unit did NOT include the mounting plate so the Widths is about 1" (or more likely 2.5 cm) wider than published. Last gripe, I accidentally "broke" it. The signal cable from the unit to the remote display was annoyingly long. I easily replaced it with a port compatible 2 ft phone cable. My eyes are not great but they both looked like 4 wire cables. This short cable did NOT work at all. When I went back to the original cable the Power ON/OFF button worked but NOTHING showed up on the display. Could not get the display to work. I don't really need a remote ON/OFF as the unit already has one. I contacted the vendor by email and have not heard back yet. ... show more
Reviewed in the United States on March 9, 2026 by Eric P. Chipko
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