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

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

$69.71
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| 20 review(s) | Add your review
300w car inverter with intelligent cooling fan for sale, input voltage DC 12v and peak power 600w. 12 volt inverters come with USB port 5v 2.1A, efficiency ≥87%. The power converter for car has temperature protection, overvoltage protection, short circuit protection, and cell PTC protection.
Free shipping
Delivery date: 6-12 days
SKU: ATO-CI-300W
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  • Overview
  • Specs
  • FAQ
  • Reviews
Overview

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.

Note: Refrigerator or similar to the refrigerator load equipment, need to choose 10 times more power inverter.


Feature

  1. The vehicle power inverter's body is made of aluminum-magnesium alloy, which has been polished by ion oxidation and has a good heat dissipation effect.
  2. The casing of the car inverter is insulated against static electricity and is sturdy and durable.
  3. The output socket of is equipped with a protective door design and is compatible with 98% of the world's power plugs, making it safer to use.
  4. The power inverter for a car has forward and reverse polarity protection functions to effectively reduce machine damage.
  5. DC input positive pole, red terminal DC- is connected to the positive pole of the battery.
  6. DC input negative pole, black terminal DC- is connected to the negative pole of the battery.
  7. The cigarette lighter inverter's smart fan rotates silently, and the product dissipates heat quickly, achieving intelligent energy saving.
  8. Rubber power cord withstands high temperatures and is a 67% more heat-resistant patch, high-quality dual control chip.
  9. Temperature protection, short circuit protection, and overcurrent protection.
  10. Overvoltage protection, reverse connection protection, impact protection.
  11. Overload protection, low voltage protection, cell PTC protection.

Detail

Intelligent cooling fan

Intelligent Cooling Fan

After the temperature reaches 45°C, the 12 volt inverter will automatically start the fan to dissipate heat, effectively reducing energy consumption. The fan adopts a ball structure, which has a long life, high speed, and low noise.
Output socket

Output Socket Type

The output socket is designed with a protective door for better safety performance. It also has dual 2.1A USB interfaces and the power inverter efficiency is as high as 90%. It is compatible with 98% of the world’s power plugs.
SMT dual control chip

SMT Control Chip

Using SMT's high-quality dual-control chip, the 300w power converter for car has temperature protection, short-circuit protection, over-current protection, impact protection, and cell PTC protection.

 

Applications

Video camera

Camera

Printer

Printer

Flashlight

Flashlight

Electric fan

Fan

Specs
Model ATO-CI-300W
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

 

FAQ

How to choose a car power inverter?

  1. Waveform: Give priority to a sine wave or modified sine wave inverter. Sine wave inverters provide a stable power supply, which is essential for sensitive electronics. Modified sine wave inverters are also acceptable for most appliances. Avoid square wave inverters as they can cause power instability and potential damage to your devices.
  2. Shell Material: Choose a car inverter with a metal shell. Metal casings offer superior heat dissipation, preventing the inverter from overheating. They also enhance safety by reducing the risk of fire.
  3. Weight: Prefer heavier inverters when sizes are comparable. A heavier inverter typically indicates a thicker shell and a robust internal transformer, which contribute to better heat dissipation and the ability to drive high-power loads for extended periods.
  4. Protection Functions: Ensure the inverter has comprehensive protection features. Key protection functions include input under-voltage protection, over-voltage protection, over-temperature protection, output overload protection, and output short-circuit protection. Additionally, audible and visual alarms are crucial for promptly addressing any issues.
  5. Conversion Efficiency: Look for an inverter with a conversion efficiency of over 90%.
    Higher conversion efficiency means longer battery usage time and less heat generation. This efficiency is vital for the overall performance and longevity of both the inverter and your battery.
  6. Output Socket Form: Verify that the inverter’s output socket matches your electrical plugs. Ensure compatibility with national standard two-phase and three-phase plugs to avoid any inconvenience with your appliances.
Write your own review
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Existing reviews
Handy for road trips
Picked up this 300W car inverter to keep my laptop and a few gadgets charged during long drives, and it’s been convenient. The fan keeps it from overheating even after a few hours. Just be careful not to push it too close to the 300W limit. Overall, it’s a solid backup for light to medium use on the road.
Angelo Chaucer | 4/28/2025 12:49 AM
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Useful and reliable 300W car power inverter
I've had this 300W car power inverter for over 2 years now, taken it on multiple cross country trips, including ones that have involved car camping. Since then this inverter has powered laptop, iPad, and phone. I recommend this car inverter.
Jacob Smith | 11/4/2024 11:13 PM
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Good Power Rating and Load Requirements
Users should carefully match the power rating of the inverter with the power requirements of their connected loads. Oversizing or undersizing the inverter can impact its efficiency and overall performance.
Lachlan lanna | 11/27/2023 12:28 AM
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Very compact and suitable
Purchasing this car power inverter was a wise choice for me. The 110V/220V output allows me to connect various devices, has multiple protection functions such as overheating protection and overload protection, and is very compact and suitable for placement in the car for easy use.
Lucas huang | 10/31/2023 1:21 AM
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Inefficiency
The efficiency of the inverter is not up to par. Some power is lost during the DC to AC conversion process.
Jocasta lusion | 10/30/2023 9:50 PM
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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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Awesome
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 inverter.com
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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