Cobra CPI480

800W Max Output Power Inverter


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This item has been discontinued

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Give Yourself A Boost

Take your work or play with you and not have to worry about where to plug your devices in. The dual outlets and the single USB port will provide a charge to all of the devices that you need. The small size makes this perfect for family trips, business trip, or the road trip that you have been always wanting to go on!

General Features:

  • Cobra Power Inverter
  • Power Handling:
    • RMS: 400 watts
    • Peak: 800 watts
  • Includes a 5V USB output
  • Converts power into a 120 VAC outlet
  • Ideal for powering cell phones, iPods, laptops, blackberrys, and more!
  • Cigarette lighter cord and direct-to-battery cables included
  • Dual AC outlets
  • Pentagon protection against:
    1. Thermal shutdown
    2. Reverse polarity protection
    3. Over-voltage shutdown
    4. Low voltage shutdown
    5. Low voltage alarm
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Continuous Power: 400 watts
  • Surge Power: 800 watts
  • Output Waveform: Modified sinewave
  • Output Voltage Range: 115 VAC RMS +/- 5%
  • Output Current: 3.5 Amps
  • Output Frequency: 60 Hz +/- 2 Hz
  • Input Voltage: 12.5 VDC +/- 20%
  • Low Voltage Alarm: 10.5 VDC +/- 3%
  • Low Voltage Cutoff: 9.5 VDC +/- 3%
  • No Load Input Current: <0.5 Amp
  • Weight: 1.5 lbs
  • Dimensions: 6-1/4"D x 4-3/8"W x 2-1/4"H

Product History:

Cobra CPI-480 thumbnail
(newest, current model)
Cobra CPI475 thumbnail
(previous model, replaced by Cobra CPI480)

General Features

Type of Inverter
This is the way in which the power inverter will convert the power.

AC to DC: Converts common household AC power to DC Power.

DC to AC: Converts DC power to the common household AC power. Often times these converters can be plugged into the vehicles cigarette lighter.

DC to AC
Maximum Power Output
This is the maximum amount of power that the unit will produce at a given time. Usually this is not the amount of power that is continuously being produced.
800 watts
Continuous Power Output
This is the average amount of power that the unit will produce. If you have specific needs, it is more effective to consider the RMS power output rather than the max power output. Continuous power output is also referred to as a RMS power rating.
400 watts
Number of Power Outlets
This is the total number of outlets that the power inverter, power strip, or other power device has.
USB Port
This means that the item has a USB port. The port can be used to provide the unit with updates or to transfer data on to it.
Fan Cooled
A great feature to have if a power inverter generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the inverter from overheating (burning).
Rack Mountable
Some units can be mounted to a rack for organization and convenience.
Battery Cables Included
Battery cables included means that the unit comes with battery cables and clips to connect the unit to the vehicle's battery.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


West Palm Beach, FL

John M. Lamb

November 16, 2012

I purchased the Cobra CPI 480 to power my computer, printer, hot box and charge various walkie talkies and recharge power tool batteries. It is the best charger I have purchased. It has never let me down and the ease of installation made the purchase even sweeter. It took ten minutes to hook it directly to my truck battery and the compact size allowed me to fit it at arms reach for easy on/off situations. The cooling fan keeps the unit charging all day. I work from my "office" truck.

53 of 63 found this helpful

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Mankato, MN

cpi 480

March 31, 2014

Bought it for our vacation to charge the laptop and batteries as I drive and so far works still. connection is a little picky when plugging it in but I can deal with it. Haven't tried anything over 200watts yet and haven't connected directly to the battery as I had planned but its worth it for the small appliances. I would recommend this for anyone seeing that in stores you can only get cheap 100 watts for this same price. I approve.

53 of 64 found this helpful

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McAllen tx

cobra inverter

February 17, 2013

Great item great product use it anywhere you want. Highly recommended.

53 of 64 found this helpful

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Gardena, CA

Wonderful for camping and laptop

October 7, 2010

I bought this for running my laptop while in the car, but is has proved to be much more valuable. Blowing up airbeds when camping plugging i the coffee maker in the desert. this is a must have for the off road bag

53 of 65 found this helpful

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Browse 2 questions and 6 answers
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Why did you choose this?
Sonic Electronix Store
Priced right for my needs
ryan n on Sep 3, 2016
Excellent Value!
Brian S on Nov 8, 2014
use in RV to run TV and DVD w/o using generator
david t on May 27, 2015
How long will the Cobra CPI480 400W inverter run if motor is not running?
Webby on Aug 14, 2014
Best Answer: If your engine is not running, the inverter will run only if directly connected to your vehicle battery or if your DC Power (Cigarette Lighter) is connected to the vehicle's battery and able to have power through it without the key in the ignition. That being said, "how long" is probably not something you want to put to the test because if you run it without ever turning your vehicle on, your vehicle battery will die since it will not have a charging system.

If you need your inverter to run for an hour or so without your engine on, then you will need to make sure you are connected to the battery directly (constant source) and you will be fine so long as your vehicle battery is not on its last legs.
Reply · Report · natev on Aug 14, 2014
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Cobra CPI480