300W Car Power Inverter, DC 12V to AC 110V/220V

12V DC to 110V/220V AC car inverter provides 300W continuous power and 600W peak power, modified sine wave output, quick charging devices such as laptops, tablets, and USB port for usb-compatible electronics when you're on the move, with multi protections and durable housing.
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Delivery date: 6-12 days
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Power up your electronics with 300 watt car inverter. This power inverter for car converts your vehicle's battery of 12V DC to 110V/220V 50Hz/60Hz, and has multi-protections to prevent your devices from damage, ideal for use on vacations, work trips, camping and anywhere AC power is needed.


Model ATO-C300W 
Input Voltage DC 12V DC 24V
Output Voltage AC 220V±10V/AC 110V±10V
Continuous Power 300W
Peak Power 600W
Output Frequency 50Hz±1Hz/60Hz±1Hz
Output Waveform Modified Sine Wave
USB Port Dual USB: 5V 2.1A MAX AUTO
Efficiency ≥87%
Low Voltage Alarm 10.5V±0.5V 21V±0.5V
Low Voltage Shutdown 9.8V±0.5V 20V±0.5V
High Voltage Alarm 15.5V±0.5V 31V±0.5V
High Voltage Shutdown 15.5V±0.5V 31V±0.5V
Output Jack Universal socket
Cooling Fan 2-stage temperature control
Overload Protection >300W
Overheat Protection >60℃
Short Circuit Protection Yes
Size 120*97.5*53mm
Weight 0.64kg
Warranty 1 year

Tips: Modified sine wave or pure sine wave car power inverter, which one is better?

Pure sine wave power inverter can provide high-quality AC power which is the same as the grid power and power any kind of loads, but it has higher requirement in technique and cost. However, modified sine wave power inverter can meet most of our electricity demands with high efficiency, low noise and favorable price. Therefore, modified sine wave car inverters are the mainstream products in the market. By the way, modified sine wave power inverters should avoid the sensitive load, such as motors, compressors and so on, which require a much larger start-up current (about 5-7 times) than the current required to maintain normal operation. In short, if you need to run an electronics or appliance with large current start-up, pure sine wave inverter is your best choice.


Existing reviews
Great car inverter perfect for travel
I bought this 150w car Inverter for my RV. It's compact and easy to use, making it a must-have for any trip. I highly recommend it to anyone who needs a portable power source.
Petro j | 3/28/2023 3:13 AM
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Durable car inverter
300W car inverter I purchased is a high quality device that can handle multiple electronic devices at the same time with no loss in performance or efficiency. I would recommend it to anyone who needs a reliable power source.
Emily Grace | 3/28/2023 3:11 AM
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Great value for the price
The 300W car power inverter is small and quiet. I use it for work travel to keep my laptop charged. It has two USB ports for charging other devices. USB ports at one time with no issues. Great device for the price.
Beckly Smart | 10/28/2022 1:12 AM
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Wonderful 300W car inverter
My work requires me to drive, but sometimes there is not enough time to power my devices. With this 300W car inverter, I can charge my phone, iPad and laptop at the same time without worrying about my devices not charging.
Tatiane Sousa | 10/24/2022 7:22 PM
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Useful car inverter
The 300W car inverter is by far the best I have ever used. It mounts in my semi truck and with my fridge, grill and oven plugged in. I can use all three at the same time without losing power or blowing a fuse.
cheryl dietrich | 10/24/2022 1:53 AM
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7 days of farm holiday living with this car charger
I bought this to run my auto inflatable bed and charge my laptop and phone with no issues using two USBs at the same time, perfect for these functions.
Nikhil Lermei | 4/27/2022 3:20 AM
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As described, works great
I think this 300 watt car power inverter is worth the money. I need it to charge the computer during a long trip. It works perfectly.
brook Bazell | 4/25/2022 8:28 PM
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Quiet and convenient
When several people need to charge their mobile phones, I can still use my laptop, which is very suitable for travel or business trip. At present, it works very well.
Alfonse Locker | 4/25/2022 8:21 PM
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Great buy
I bought this for camping. The 300W car inverter can provide a USB port for charging mobile phones and portable speakers. If you also want to use it when camping, an extension cord is recommended.
Boley Davis | 4/25/2022 1:01 AM
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Works as expected
I bought it according to the product description and it did not disappoint. This car power inverter is very convenient and compact, easy to store and pack.
Seon Garcia | 4/25/2022 12:44 AM
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Good item
300W car inverter arrived on time, exactly as described by the seller. The car power inverter is very suitable for the project I want.
Doublin Williams | 4/25/2022 12:20 AM
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Does what I need it to do
I bought a 300W car power inverter for a camping water heater. It is compact and convenient. However, make sure to check the power of the equipment you plan to use first.
patton Johnson | 4/22/2022 2:16 AM
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I have plugged in to charge various phones and it's worked flawlessly with no sound. I will be back to buy another soon. I really like this product. Good car power inverter.
Alston John | 1/18/2022 11:56 PM
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Universal car power inverter
This car power inverter is very versatile. It can charge electronic devices. I use it to charge the batteries of ipad, mobile phones and cameras. As long as I plug it into the wall charger, it can work normally. Very practical and recommended to buy.
Silvia Darquea | 12/3/2020 7:12 PM
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Car inverter for my laptop
I want to buy a car inverter for my laptop. Could your 300 watt power inverter be used with the cigarette lighter?
Kraus K | 4/12/2020 10:07 PM
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Responded by
Yes, our 300W car power inverter has special connector and cable for cigarette lighter. It's very easy to use 12V DC car power to run your Laptop.
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