CPI480 400-watt inverter from Cobra

This 400-watt inverter from Cobra is ready for work — or the weekend. It converts your car's battery power so you can power up laptops, blenders, small appliances, and even many large flat-screen TVs from your vehicle. Whether you're finishing a report on the road or blending up beverages at a tailgate party, you'll have all the power you need. In addition to the two AC outlets, you'll also find a USB output for charging phones, tablets, handheld video games, laptops, and more. Cobra includes a cigarette lighter adapter and direct-to-battery cables.

Product Highlights:

  • 400 watts continuous, 800 watts peak power
  • dual AC outlets and USB output
  • compact design is ideal for travel
  • cigarette lighter cord and direct-to-battery cables included
  • 6-9/16"W x 2-13/16"W x 4-1/4"D
  • warranty: 2 years
  • Our 60-day money-back guarantee

Cobra CPI480 Reviews

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Nice power inverter

Written By AmauryJVL, San Juan, PR on Wednesday, May 08, 2013

Crutchfield Customer Review (What's this?)

So every year i like to add Christmas lights to my ford escape and in 2012 i went and added 4 sets of led outdoor lights and it was super bright. the inverter didn't hesitate and never overheated or anything. Great product and free fast shipping to PR what more to ask

Hands-on research

What's in the box?

Download owner's manual

  • DC to AC inverter
  • 27" Cigarette lighter adapter cable
  • 28" 12-gauge cable with terminal clamps
  • Operating Instructions
  • Product Registration card

Product Research


Overview: The Cobra CPI 480 power inverter provides household (AC) power from a DC power source, such as your vehicle's battery, cigarette lighter, or power port. The inverter has two 3-pronged AC outlets to power small appliances or a laptop, as well as a USB charging port (Type A) for your mobile phone, tablet, iPod, or other USB devices.

Typical Uses: The CPI 480 provides 400 watts of continuous power, and is recommended for powering small appliances and office equipment. It comes with a cigarette lighter cable for use inside of your vehicle, and a direct-to-battery cable with terminal clamps, so you can use the inverter outside of the vehicle.

Protection Circuits: The CPI 480 has a number of protection circuits for safe operation. These circuits include: overload, short-circuit, over-temperature, reverse polarity, and under/over voltage. The inverter has a cooling fan that increase speed as the load increases and stops when there is no load.

Alarm: The inverter has a built-in alarm that will sound when the DC input voltage is getting low (10.2-10.8V). The inverter will shut down when the voltage gets down to 9.2-9.8V.


  • Output Voltage: 109-120 Volts AC; 60 Hz (+/- 2 Hz)
  • Output Power: 400 Watts maximum continuous
  • Surge Rating Power: 800 Watts peak (0.1 second) (startup capacity)
  • Peak Efficiency (12V--1/2 Load): 88%
  • Efficiency (12V--full load): 83%
  • Output Waveform (resistive load): Perfect modified sine wave
  • USB Output: 5 Volts DC continuous
  • Input Voltage: 10.4 to 14.4 Volts DC
  • Shutdown Voltage: 9.2-9.8 Volts DC
  • Operating Temperature: 32°F to 104°F

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