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    2500 Watt Pure Sine Wave Power Inverter, 48V DC to 120V AC

    5 out of 5 based on 4 reviews | Write a review
    2500 watt pure sine wave power inverter with 5000 watt peak power are available for input DC 12/24/48V and output AC 100/110/220/230/240V for your choice. Best DC to AC inverter features durable aluminum alloy housing, intelligent cooling fan, built-in fuse and a multi-protections against under/over voltage, overload, over temperature and short circuit (reverse polarity connect) for safely charging your devices.
    SKU: ATO-PI-2500W
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Favorable price 2500 watt pure sine wave power inverter, converting 12V/24V/48V DC energy to AC household power with 2 AC outlets and 1 USB port for powering devices such as cell phone, lights, tablets, TV, computer, fan, refrigerattor, washing mashine, microwave oven, power tool, etc., during vacation, on the road trip, work trip, in the car or even at power outage.


    • Provides 2500W continuous DC to AC power and 5000W surge power
    • Pure sine wave inverter, capable of producing clean & stable electricity
    • Soft-start technology
    • USB charging port for powering your phone, laptop, etc.
    • Aluminum alloy casing with good heat dissipation
    • Multiple protections against under and over voltage, over load, over temperature, short circuit and input polarity reverse connection
    • ON/OFF switch design, easy to use
    • Intelligent cooling fan, long working life

    Note: Refrigerators or devices similar to refrigerator loads need to choose an inverter with a power of more than 10 times.


    Model ATO-PSWI-2500
    Output Power 2500 Watt
    Peak Power 5000 Watt
    Phase 1- Phase (L, N, G), Do Not provide split phase configuration (L1, L2 + N, G)
    Input Voltage* DC 12V DC 24V DC 48V DC 12V DC 24V DC 48V
    Input DC Voltage Range 10-15.5V 20-31V 40-61V 10-15.5V 20-31V 40-61V
    Output Voltage* 100V AC or 110V AC or 120V AC ±5% 220V AC or 230V AC or 240V AC ±5%
    No-load Current (less-than) 1.3A 0.8A 0.6A 1.3A 0.8A 0.6A
    Output Frequency* 50Hz±0.5Hz or 60Hz±0.5Hz
    Output Wave Pure sine wave
    Waveform Distortion THD<3% (linear load)
    USB Port 5V 1A
    Outlets Type 2*Universal outlet and 4*USA outlet
    Max. Working Efficiency 90.0%
    Low Voltage Alarm 10.5V±0.5V 21V±0.5V 42V±1V 10.5V±0.5V 21V±0.5V 42V±1V
    Low Voltage Shutdown 10V±0.5V 20V±0.5V 40V±1.5V 10V±0.5V 20V±0.5V 40V±1.5V
    Low Voltage Recovery 13V±0.5V 24V±0.5V 48V±1V 13V±0.5V 24V±0.5V 48V±1V
    Over Voltage Shutdown 15.5V±0.5V 31V±0.5V 61V±1V 15.5V±0.5V 31V±0.5V 61V±1V
    Over Voltage Recovery 14.8V±0.5V 29.5V±0.5V 59V±1V 14.8V±0.5V 29.5V±0.5V 59V±1V
    Protection Low voltage, Over voltage, Over load, Over temperature, Short circuit, Input polarity reverse connection
    Cooling Way Intelligent air cooling
    Remote Control* Wired control (2m) or Wireless control (30m)
    LCD Display Display input voltage, output voltage, frequency, power, waveform, battery capacity
    Operating Temperature ﹣10℃~ +50℃
    Storage Temperature ﹣30℃~ +70℃
    Humidity ≤90%, non-condensing
    Dimensions (W*H*D) 398*180*130mm
    Package Size (W*H*D) 470*245*195mm
    Net./Gross Weight 5.6kg/6.9kg
    Certificate CE, RoHS
    Warranty 12 Months


    2500 Watt Pure Sine Wave Power Inverter Details

    Wiring Diagram

    12v 24v power inverter wiring
    Note: The wiring of 48V inverter is similar to the 24V inverter, and the batteries are connected in series.

    LCD Display (Optional)

    The LCD display will show input voltage, output voltage, frequency, power, waveform, and battery capacity.

    Pure sine wave inverter LCD dispaly

    Protection Functions & Applications

    pure sine wave power inverter protections

    Pure sine wave power inverter applications

    • Reverse Polarity Protection
      Auto protection when input positive and negative polarities are reversely connected – The fuse blown out.
    • Short Circuit Protection
      Automatically self-protect when short circuit occurs – Red LED light ON.
    • Low Voltage Protection
      Automatically protect when in low voltage – Alarm first, the voltage continuously reduces, the red light is on and the inverter shuts down.
    • Over Voltage Protection
      Automatically protect when in high voltage – Red LED light is on, and the inverter automatically shuts down.
    • Over Temperature Protection
      Automatically self-protect when at high temperature – Alarm first, the temperature continuously rises, the red light is on and the inverter shuts down.
    • Overload Protection
      Automatic self-protection when there is overload – Red LED light is on and the inverter automatically shuts down.

    Tips: What is a modified sine wave power inverter?

    The modified sine wave power inverter emerged in recent years aiming at the shortcoming of squre wave power inverter. The output waveform has a time interval from the maximum value in the positive direction to the negative value in the negative direction. The use effect is improved. Modified sine wave power inverters generally use non-isolated coupling circuits.

    Modified sine-wave power inverter not only saves cumbersome industrial frequency transformers, but also significantly increases the inverting efficiency by 90%. Modified sine-wave power inverter uses PWM to generate the modified sine-wave output. Due to the use of dedicated intelligent circuits and high power field effect transistors, the power loss of the system is greatly reduced. It also increased the soft start function to ensure the reliability of the inverter. If the demand for power quality is not very high, it can meet the needs of most of the power equipment. However, it still has 20% harmonic distortion. It will cause problems in the operation of precision equipment, and also cause high frequency interference to the communications equipment.

    In this video, ATO makes a simple test on the input and output voltage of 1000W 24 DC to 220V AC pure sine wave power inverter. And, this power inverter is used to power a cell phone and a fan which work normally.

    How to Diagnose Inverter Problems and Repair
    An inverter is a power conversion device. The basic working principle of an inverter is to convert direct current into high-frequency, high-voltage alternating current through pulse width modulation (PWM) technology. The core part of the inverter is a PWM integrated controller, which is responsible for generating PWM signals and converting DC power to AC power through MOS switching tubes. A blown fuse is one of the most common reasons why an inverter has no output. This video will show you how to perform a simple diagnosis of a failed inverter and how to fix the problems.

    Existing reviews of 2500 Watt Pure Sine Wave Power Inverter, 48V DC to 120V AC
    High quality pure sine wave power inverter
    I have used it for about 4 months. Now a mini fridge, microwave and crockpot connected to it and this pure sine wave inverter hasn't given me any issues. Excellent!
    From: Drew | Date: 25/04/2022
    Was this review helpful? Yes No (0/0)
    This is the best inverter I found on the Internet. Using the correct wire gauge, fuses and a good quality disconnect. This pure sine wave inverter is awesome it works everything I needed to do during the day.
    From: Paulo | Date: 11/04/2022
    Was this review helpful? Yes No (0/0)
    Solid and nice pure sine wave inverter
    I have had this inverter for almost two months and I'm very satisfied. It was better than I was expected. However, very robust and solid. Feels like it will stand the test of time! Definitely recommend!!
    From: Colleen | Date: 23/03/2022
    Was this review helpful? Yes No (0/0)
    High quality 2500w power inverter
    Looks very well built and high quality power inverter. I have had this unit working daily for 3 weeks. This inverter is pure sine wave output, so it can power my electric drill and saw, and also run my mini fridge. I also used it for a camping last weekend. No issue happens and very happy with it.
    From: Darcy | Date: 06/01/2020
    Was this review helpful? Yes No (0/0)
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