Enjoy fast, free delivery, exclusive deals, and award-winning movies & TV shows with Prime
Try Prime and start saving today with fast, free delivery

FREE Returns

FREE delivery Tuesday, May 7

Or fastest delivery Friday, May 3. Order within 21 hrs 38 mins

Select delivery location

Only 5 left in stock - order soon.

$$110.00 () Includes selected options. Includes initial monthly payment and selected options. Details

Enhancements you chose aren't available for this seller. Details

${cardName} not available for the seller you chose

${cardName} unavailable for quantities greater than ${maxQuantity}.

Ships from

Amazon

Ships from

Amazon

Sold by

MBM Sales

Sold by

MBM Sales

Returns

Eligible for Return, Refund or Replacement within 30 days of receipt

Returns

Eligible for Return, Refund or Replacement within 30 days of receipt

This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.

Read full return policy

Support

Product support included

Support

Product support included

In the event your product doesn't work as expected or you need help using it, Amazon offers free product support options such as live phone/chat with an Amazon associate, manufacturer contact information, step-by-step troubleshooting guides, and help videos. By solving product issues, we help the planet by extending the life of products. Availability of support options differ by product and country. Learn more

Payment

Secure transaction

Payment

Secure transaction

We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more

Details

Add a gift receipt for easy returns

FREE Returns

Looks and functions as if it were new. Item may not come in original packaging.

FREE delivery Wednesday, May 8

Select delivery location

Only 1 left in stock - order soon.

$$110.00 () Includes selected options. Includes initial monthly payment and selected options. Details

Enhancements you chose aren't available for this seller. Details

${cardName} not available for the seller you chose

${cardName} unavailable for quantities greater than ${maxQuantity}.

Sold by Amazon Warehouse and Fulfilled by Amazon.

Other sellers on Amazon

New & Used (4) from $69.54 & FREE Shipping.

Add an Accessory:

$119.95

Added to Cart

An error occurred when processing your request.

$188.25

Added to Cart

An error occurred when processing your request.

$268.74

Added to Cart

An error occurred when processing your request.

VIDEO

Introducing Cobra's Range of Power InvertersCobra electronics

Image Unavailable

Image not available for
Color:

To view this video download Flash Player

Cobra PURE SINE 400W Power Inverter, Portable – 400 Watt Car Charger, 2 Grounded AC Outlets, 2 Fast Charge USB Ports and Remote Controller (CPIALCDG1) Compatible

Visit the Cobra Store

4.2 603 ratings

| Search this page

$110.00

FREE Returns

$69.54

FREE Returns

Available at a lower price from other sellers that may not offer free Prime shipping.

Style: 400 Watt Pure Sine

Pattern Name: Power Inverter

{"desktop_buybox_group_1":[{"displayPrice":"$110.00","priceAmount":110.00,"currencySymbol":"$","integerValue":"110","decimalSeparator":".","fractionalValue":"00","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"PLbA3wiZBEXlprhKjLRcRKgX6FuVU400pqD1UOhuRa4b4fYl%2F5JEfmodAPAP5GCEPJa8PynxL8GGWbNVCUboveD7YJqbTtkXRegtqPfEvIMHuKEnqDq%2B9ODuF8KWMF53zfoo7%2B6qfAZIMmfZstm7KrFPRJ2mFWecGnYkXAqiN1Rax4V1qC1W6Q%3D%3D","locale":"en-US","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}, {"displayPrice":"$69.54","priceAmount":69.54,"currencySymbol":"$","integerValue":"69","decimalSeparator":".","fractionalValue":"54","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"PLbA3wiZBEXlprhKjLRcRKgX6FuVU400nyE2c4mviObmoOV5ccit05B%2FiiLy45cCOCj%2FGQw62kArp2fUS7lCOk7mg8ForgDwozHh275lwPMHrRzxEtrKkgXtd%2F1f%2F57cNL3D%2BVOQUZbrTQqAbH6l9VHuVh3lXt2o7LvFYmrCk9Q2N4t4I3c9kAETNWMa7LpO","locale":"en-US","buyingOptionType":"USED","aapiBuyingOptionIndex":1}]}

Purchase options and add-ons

Brand	Cobra
Recommended Uses For Product	Vehicle
Power Source	Battery Powered
Wattage	400 watts
Model Name	CPI400PSW

About this item

400W CONTINUOUS / 800W PEAK POWER - With 400 Watts of Pure Sine Wave power, you'll be able to charge and power your medical devices, sensitive electronics, smartphones, laptops, entertainment devices, and other mobile devices - safely and reliably.
COBRA REMOTE CONTROLLER COMPATIBLE - Monitor and charge portable devices with Fast Charge USB from anywhere inside your vehicle. The remote includes 3.0 AMP USB-A and USB-C fast charge ports.
2 GFCI PROTECTED AC OUTLETS - Easily power up to 2 of your medical devices, electronics, or small appliances with this portable charger, includes GFCI protected AC outlets for each.
HEAVY DUTY CABLES - Includes 16 12 AWG and 12V Cables, both direct-to-battery and convenient car accessories.
PENTAGON PROTECTION SAFETY and 2 YEAR WARRANTY - To keep you safe, the PURE SINE 400W includes 5 levels of protection: Over Temperature, Reverse Polarity, Over Voltage, Low Voltage Alarm, and Low Voltage Cutoff; and industry-leading 2-year warranty.

Report an issue with this product or seller

Save on Quality Tripod by AmazonBasics

AmazonBasics 60-Inch Lightweight Tripod with Bag, 2-Pack

AmazonBasics Lightweight Mini Tripod, 4-Pack

AmazonBasics 50-Inch Lightweight Tripod with Bag, 4-Pack

Similar item to consider

Amazon Basics 750W Car Power Inverter 12V to 110V for Vehicles, Grey, 8.34 x 5.2 x 2.2 inches

(76)

$46.24

Frequently bought together

Cobra PURE SINE 400W Power Inverter, Portable – 400 Watt Car Charger, 2 Grounded AC Outlets, 2 Fast Charge USB Ports and Remo

$110.00

Get it as soon as Tuesday, May 7

Only 5 left in stock - order soon.

Sold by MBM Sales and ships from Amazon Fulfillment.

Cobra CPIALCDG1 Remote Controller – Compatible with Cobras Professional Grade Power Inverters, Remote On/Off, 4 Mounting Opti

$54.64

Get it as soon as Tuesday, May 7

In Stock

Ships from and sold by Amazon.com.

Total price:

To see our price, add these items to your cart.

Try again!

Details

Added to Cart

One of these items ships sooner than the other.

Show details Hide details

Choose items to buy together.

603
7 offers from $36.14
603
1 offer from $199.95
1,952
Amazon's Choice
in Power Inverters
1 offer from $32.97
64
1 offer from $37.99
3,402
1 offer from $45.99
2,788
1 offer from $69.99

From the brand

Cobra Radar

Visit the Store
Two Way Radio

Visit the Store
CB Radio

Visit the Store
Marine Radio

Visit the Store
Dash Cameras

Visit the Store
Power

Visit the Store

From the manufacturer

Power Where You Need It

PURE SINE 400W

The PURE SINE 400W Power Inverter with Fast Charge USB is perfect for pro drivers, travelers, campers, and more who want to power medical devices like CPAP machines or sensitive electronics like laptops, gaming systems, and entertainment devices.

What's in the Box

COBRA REMOTE COMPATIBLE

Monitor and charge devices with Fast Charge USB from anywhere inside your vehicle
#12 AWG & 12V CABLES INCLUDED

Includes heavy-duty direct-to-battery cable and convenient 12V accessory cable
EXTREME SAFETY

When you need safe and reliable portable power, nothing comes close to a Cobra
INPUT/OUTPUT INDICATOR

A 2-color LED indicator lets you know your power inverter status at all times
RUGGED INDUSTRIAL DESIGN

Designed to look and work great in your car, truck, RV, or semi

1 REMOTE COMPATIBLE 2 WHAT'S INCLUDED 3 EXTREME SAFETY 4 INPUT/OUTPUT INDICATOR 5 RUGGED DESIGN

Cobra Power Inverters

	PURE SINE 400W	POWER 500W	PRO 1500W	PRO 2500W	PRO 3000W
Customer Reviews	603	603	603	243	603
Price	$110.00	—	$199.95	$279.63	—
Output Waveform	Pure Sine	Modified Sine	Modified Sine	Modified Sine	Modified Sine
Continuous/Peak Power	400W / 800W	500W / 1000W	1500W / 3000W	2500W / 5000W	3000W / 6000W
Perfect For	Pro Drivers & Campers	Travelers & Campers	Pro Drivers & Campers	Drivers, Contractors & Campers	Drivers, Contractors & Campers
Can Power	Medical Devices & Electronics	Electronics & Small Appliances	Electronics & Appliances	Power Tools & Appliances	Power Tools & Appliances
GFCI Protected AC Outlets	2	2	4	4	4
Volt/Watt Meter	2-Color LED	2-Color LED	7-Segment LED Display	7-Segment LED Display	7-Segment LED Display
Cooling Fans	1	1	2	2	2
3.0 Amp USB Fast Charge Ports	USB-A / USB-C	USB-A / USB-C	USB-A / USB-C	USB-A / USB-C	USB-A / USB-C
Efficiency Rating	90%	90%	90%	90%	90%
Pentagon Protection Safety	Yes	Yes	Yes	Yes	Yes
Cobra On/Off Remote Control	Compatible	Compatible	Compatible	Compatible	Included
Terminal Protector Boots	No	No	Yes	Yes	Yes

Compare with similar items

	This Item Cobra PURE SINE 400W Power Inverter, Portable – 400 Watt Car Charger, 2 Grounded AC Outlets, 2 Fast Charge USB Ports and Remote Controller (CPIALCDG1) Compatible	Recommendations Cobra PRO 1500W Professional Grade Power Inverter, Portable – 1500-Watt Car Charger, 4 Grounded AC Outlets, 2 Fast Charge USB Ports and Remote Controller (CPIALCDG1) Compatible	dummy BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Grey	dummy Energizer 400 Watt Dual Power Inverter, DC 12V to 110V AC Converter, Modified Sine Wave Car Inverter, 110 Volts AC Outlet, with 2 USB Ports and Car Cigarette Lighter Adapter	dummy Amazon Basics 750W Car Power Inverter 12V to 110V for Vehicles, Grey, 8.34 x 5.2 x 2.2 inches
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$110.00	$199.95	$72.99	$46.97	-11% $46.24 Typical: $51.86
Delivery	Get it as soon as Tuesday, May 7	Get it as soon as Tuesday, May 7	Get it as soon as Tuesday, May 7	Get it as soon as Tuesday, May 7	Get it as soon as Tuesday, May 7
Customer Ratings	4.2603	4.2603	4.52,788	4.21,087	4.376
Value for money	3.2	3.2	4.2	4.0	4.5
Noise level	3.6	3.6	3.9	3.7	—
Charging power	3.1	3.1	4.0	—	4.2
Easy to use	3.2	3.2	—	4.4	—
Sold By	MBM Sales	Amazon.com	BESTEK.	TECHBUY	Amazon.com
power outlets	4	4	4	—	—
output voltage	—	—	110 volts	110 volts	110 volts
input voltage	12 volts	12 volts	12 volts	12 volts	12 volts
output power	400 watts	1500 watts	500 watts	—	750 watts
style	400 Watt Pure Sine	1500 Watt	—	Heavy-duty	750W Power Inverter
weight	1.98 pounds	3.85 pounds	2.2 pounds	—	2.55 pounds

What's in the box

CPI400PSW Power Inverter

16 Inch #10 AWG Power Cables

16 Inch 12 Volt Accessory Cable

Quick Start Guide

Product guides and documents

User Guide (PDF)

User Manual (PDF)

Looking for specific info?

Product information

Product Dimensions

8.86 x 5.39 x 2.83 inches

Item Weight

1.98 pounds

ASIN

B08L8G9N9V

Item model number

CPI400PSW

Customer Reviews

4.2 603 ratings

4.2 out of 5 stars

Best Sellers Rank

#15,009 in Automotive (See Top 100 in Automotive)
#52 in Power Inverters

Date First Available

October 15, 2020

Manufacturer

Cobra

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

Would you like to tell us about a lower price?

Product Description

Harness the power of your vehicle's DC battery! Power up your next pregame, add the convenience of home appliances on your next road trip, or even turn your car into a mobile office. The Cobra PURE SINE 400-Watt Power Inverter turns your car battery into usable A/C household current. It is ideal for medical equipment & sensitive electronics, as well as pro drivers, campers, RV enthusiasts, or for when a power outage occurs. Count on Cobra for power where you need it. Includes 16" #12 AWG power cable, 16" 12V accessory cable, and quick-start guide.

Customer reviews

4.2 out of 5

603 global ratings

How customer reviews and ratings work

Customers say

Customers like the value and quality of the power inverter. They say it's a great product, reliable and holds up well. That said, some complain about the smell and disagree on performance.

AI-generated from the text of customer reviews

15 customers mention11 positive4 negative

Customers like the value of the inverter. They say it's a great product, with a sleek look and a low-cost power solution.

"right out of the box this thing has a sleek look that is eye popping, like that matters but cool never the less also its very light weight and so..." Read more

"...Great solution considering this lower price point. Note - Cooling fans are relatively loud in a car, and initially had a strong plastic smell...." Read more

"Absolute trash of a product. Wouldn't even power my 100watt labtop without beeping continuously and turning on and off...." Read more

"Very nice inverter, great quality! Will really run those watts it shows :)" Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the power inverter. They mention that it holds up well, is reliable, and is stable.

"Very nice inverter, great quality! Will really run those watts it shows :)" Read more

"Great inverter, holding up well" Read more

"Nice and quite. Stable...." Read more

"Powerful and Reliable..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the power of the inverter. They mention that it powers their TV and satellite dish in RV, and that it can run their laptop and charge tablets.

"...I was able to run my laptop and charge tablets...." Read more

"Ok, so the unit is great. It powers everything I need no problem and doesn't even break a sweat...." Read more

"Powers my tv and satellite dish in RV..." Read more

29 customers mention9 positive20 negative

Customers are mixed about the performance of the power inverter. Some mention that it works great, while others say that it won't even turn on. Some say that the touch screen stops working, the USB C port stopped working, and the invertor won''t stop beeping that it has low voltage.

"Absolute trash of a product. Wouldn't even power my 100watt labtop without beeping continuously and turning on and off...." Read more

"...it into the 2021 RAV4, the car I bought this for, and the touch screen stops working plus the gauges jump around...." Read more

"...And I've had zero issues since then. The unit works great The only complaint I have with it is that it constantly beeps when The ignition is set to..." Read more

"The intermittent but constant beeping when my cpap is not engaged is annoying...." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the smell of the power inverter. They mention that it smells funny when first purchased.

"...Cooling fans are relatively loud in a car, and initially had a strong plastic smell. But over time the smell has dissipated...." Read more

"It starts to smell. And it pulls the battery." Read more

"...I was driving and smelled electrical burning. The unit stopped working and smells burnt." Read more

"The product smelled funny when first purchased. Used once to charge a cell phone and now doesn't work...." Read more

Reviews with images

See all photos

Sort reviews by

Top reviews from the United States

Translate all reviews to English

There was a problem filtering reviews right now. Please try again later.

Aaron Paul

Great road trip companion

Reviewed in the United States on March 28, 2024

Style: 500 WattPattern Name: Power InverterVerified Purchase

I bought this for our road trip from St. Louis to Orlando. I was able to run my laptop and charge tablets. It was nice to be able to plug it into the 12 V cigarette outlet and not have to run a heavier gauge wire into the cabin of the vehicle. It does have a low voltage alarm, which will sound and shut itself off. This really only occurred when we would start the car so just make sure that it’s off prior to starting.

Helpful

Paul

Works great

Reviewed in the United States on March 30, 2024

Style: 400 Watt Pure SinePattern Name: Power InverterVerified Purchase

Been using for a couple months to run laptop, 3d printers, low battery alarm is helpful

Helpful

walter tobar

Muy bueno

Reviewed in the United States on March 25, 2024

Style: 3000 WattPattern Name: Power Inverter + Remote Power ControlVerified Purchase

Muy bueno trabajo excelente el invertidos lo recomiendo

Helpful

Translate review to English

Nice and quite. Stable.

Reviewed in the United States on October 5, 2022

Style: 1500 WattPattern Name: Power InverterVerified Purchase

A ventilator humidifier will not work on this power inverter but other DME (Durable Medical Equipment) works just fine.

4 people found this helpful

Helpful

Dylan

Horrible product

Reviewed in the United States on December 2, 2023

Style: 400 Watt Pure SinePattern Name: Power InverterVerified Purchase

Absolute trash of a product. Wouldn't even power my 100watt labtop without beeping continuously and turning on and off. Couldn't even hook a type c to it to charge my iPad made the screen unresponsive. It's not a product you would use all the time so of course the first time I go to use it it's after the return window. Now it won't even turn on and the alligator clips they sent to hookup to your battery never even worked. Will never buy a product from these guys again.

Helpful

Dale

Top notch features. Buy it.

Reviewed in the United States on August 17, 2023

Style: 400 Watt Pure SinePattern Name: Power InverterVerified Purchase

I love the features on this thing. The fact that it has a low voltage cut off and warning is just great. Then I don’t have to add any additional 12 V cut off switches in my car or anything and it makes the wiring easier and cleaner. This thing is great. I can run a gaming laptop pulling 200 watts and charge my portable power bank at the same time off of this and neither one of them cuts off.

3 people found this helpful

Helpful

Dale T.

Good power in a small package

Reviewed in the United States on July 12, 2022

Style: 3000 WattPattern Name: Power Inverter + Remote Power ControlVerified Purchase

I haven’t used this a whole lot yet, but I’ve installed this in my camper van so it’ll see quite a bit of use. I really don’t hear it at all. So far I’ve only used it to power my 700 watt microwave and no issues. It has a lot of safety features which I’m not a real big fan of, but it did alert me to a failing battery I had that was dropping to a very low voltage..I did have an issue with the first one I received. I think a return somehow got shipped as a new one but that was taken care of right away.. I do like the remote also since the unit isn’t easily visible.

2 people found this helpful

Helpful

kevin barber

Not useable in MY 2021 Toyota RAV4

Reviewed in the United States on December 12, 2022

Style: 400 Watt Pure SinePattern Name: Power InverterVerified Purchase

Works like a dream in my older Toyota Tundra but plug it into the 2021 RAV4, the car I bought this for, and the touch screen stops working plus the gauges jump around. My guess is it's generating RFI and the RAV4 circuits aren't shielded against it. So YES it's useable, just not for the vehicle I need it to work in.

2 people found this helpful

Helpful

Top reviews from other countries

Translate all reviews to English

JeepSuds

Simple and Effective

Reviewed in Canada on February 2, 2024

Style: 3000 WattPattern Name: Power Inverter + Remote Power ControlVerified Purchase

Bought this to power Halloween decorations from my Jeep and this thing still had power left to use even after plugging in 12 animated figures and 3 huge blowup props. Now to have it permanently installed in the Jeep 😊

Michael T.

Not sure about the 500W rating...

Reviewed in Canada on June 4, 2022

Style: 500 WattPattern Name: Power InverterVerified Purchase

Got this because it is generally reviewed as quality brand. First of these portable inverters I have used. Tried it out today to make sure it worked, while hooked up directly the battery of my SUV it would NOT run: a full size fridge, a full size freezer. It would run (even when only hooked up to the cigarette lighter): one element of a small space heater, cell phone etc.
I was hoping it would run a single fridge or freezer (in the event of a power outage), and should have based on the 500W rating. Or perhaps the initial surge of the appliance turning on was simply too much for it (believe it is rated to 1000W surge), but anyhow, if you too were hoping to use it for that - get a bigger model!

Amazon Customer

onduleur parfait pour mon chalet

Reviewed in Canada on October 15, 2023

Style: 1500 WattPattern Name: Power InverterVerified Purchase

arrived de Mon coli en 1 temp record installer dams Mon chalet fonctionne bien

Translate review to English

Mike Joseph

Worked sometimes

Reviewed in Canada on August 15, 2021

Style: 500 WattPattern Name: Power InverterVerified Purchase

This is made with cheap plastic one drop and it can break. While plugged into the cigarette outlet it would turn off. It was really good when it worked powered up most small 120v devices.

Diego

Not Pure Sine

Reviewed in Canada on July 28, 2021

Style: 500 WattPattern Name: Power InverterVerified Purchase

Listed as Pure Sine in the description, but it is not. It's a Modified Sine Wave.

See more reviews

Amazon Prime includes:

Add an Accessory:

Cobra PURE SINE 400W Power Inverter, Portable – 400 Watt Car Charger, 2 Grounded AC Outlets, 2 Fast Charge USB Ports and Remote Controller (CPIALCDG1) Compatible

Purchase options and add-ons

About this item

Similar item to consider

Frequently bought together

Similar items that may deliver to you quickly

From the brand

Cobra Radar

Two Way Radio

CB Radio

Marine Radio

Dash Cameras

Power

From the manufacturer

Power Where You Need It

PURE SINE 400W

What's in the Box

COBRA REMOTE COMPATIBLE

#12 AWG & 12V CABLES INCLUDED

EXTREME SAFETY

INPUT/OUTPUT INDICATOR

RUGGED INDUSTRIAL DESIGN

Cobra Power Inverters

Compare with similar items

What's in the box

Product guides and documents

Videos

Videos for this product

Introducing Cobra's Range of Power Inverters

Looking for specific info?

Product information

Warranty & Support

Feedback

Where did you see a lower price?

Product Description

Customer reviews

Customers say

Reviews with images

Top reviews from the United States

There was a problem filtering reviews right now. Please try again later.

Top reviews from other countries