POWER 500W

Count on Cobra to Work, Play, or Get Away

$59.95

The POWER 500W Multipurpose Power Inverter with Fast Charge USB is perfect for travelers, campers, tailgaters, and RV enthusiasts who want to charge and power devices such as smartphones, laptops, entertainment devices, and small appliances.

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POWER 500W

Multipurpose 500 Watt Power Inverter

$59.95

Discounts for Military, First Responders, Teachers and Students throughID.me military, first responder, teacer and student discountsSee Terms

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POWER 500W POWER INVERTER

With 500 Watts of Modified Sine Wave power, you'll be able to charge and power your entertainment devices and appliances safely and reliably.

1Ideal for Entertainment Devices & Small Appliances

Provide the power to work, play, or get away with the POWER 500W inverter for your devices and appliances.

290% Efficient Modified Sine Wave

Highly efficient at converting DC to AC power, giving your devices and appliances longer run times and vehicle battery life.

3500 Watts Continuous /
1000 Watts Peak

500 Watts continuous can help safely power everything from fans to mini fridges to entertainment devices.

42 GFCI Protected AC Outlets

Easily power up to 2 of your entertainment devices or small appliances with GFCI protected AC outlets for each.

515W USB Fast Charge Ports

Quickly charge your smartphones, tablets, or other mobile devices from the convenient USB-A and USB-C ports.

6Pentagon Protection Safety

Built-in protection for Over Temperature, Reverse Polarity, Over Voltage, Low Voltage Alarm, and Low Voltage Cutoff.

ADDITIONAL FEATURES

2 Year Warranty

Industry-leading 2 year warranty provides complete peace of mind for your inverter

COBRA REMOTE COMPATIBLE

Monitor and charge devices with Fast Charge USB from anywhere inside your vehicle

16" #10 AWG AND 12V CABLES

Includes heavy-duty direct to battery and convenient 12V accessory power cables

Input/Output LED Indicator

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

INDUSTRY-LEADING SAFETY

When you need safe and reliable portable power,nothing comes close to a Cobra

Rugged Industrial Design

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

POWER YOU CAN TRUST

With a range of 400 to 3000 Watts, our family of reliable and dependable power inverters provides the power you need, whether it’s to work, play, or get away.

POWER WHERE YOU NEED IT

Our POWER 500W power inverter is small enough to fit just about anywhere but capable enough to charge and power your devices and small appliances.

PRO DRIVERS CAN COUNT ON COBRA

Our PRO 1500W, 2500W, and 3000W inverters provide all the power you might need to charge or operate devices, electronics, and standard appliances.

POWER TO GET THE JOB DONE

With our PRO series of power inverters, you’ll get the job done with 4 GFCI protected AC outlets and Cobra’s industry-leading Pentagon Protection built-in safety.

HAVE MORE FUN OUTDOORS

Whether you’re camping, tailgating, or on a road trip, you’ll have more fun outdoors knowing you can power the devices and appliances you need to entertain.

COMPARE MODELS

PURE SINE 400W

PURE SINE 400W

POWER 500W

POWER 500W

PRO 1500W

PRO 1500W

PRO 2500W

PRO 2500W

Output Waveform Pure Sine Modified Sine Modified Sine Modified Sine
Continuous/Peak Power 400W / 800W 500W / 1000W 1500W / 3000W 2500W / 5000W
Perfect For Pro Drivers
Campers
RV Enthusiasts
Travelers
Campers
RV Enthusiasts
Pro Drivers
Campers
RV Enthusiasts
Pro Drivers
Contractors
Campers
RV Enthusiasts
Can Power Medical Devices
Sensitive Electronics
Smartphones/Laptops
Entertainment Devices
Smartphones/Laptops
Entertainment Devices
Small Appliances
Smartphones/Laptops
Electronics
Entertainment Devices
Kitchen Appliances
Smartphones/Laptops
Electronics
Entertainment Devices
Power Tools
Kitchen/Bath Appliances
GFCI Protected AC Outlets 2 2 4 4
Volt/Watt Meter 2-Color LED 2-Color LED 7-Segment LED Display 7-Segment LED Display
Included Cables 16' #12 AWG and 12V Cables 16' #10 AWG and 12V Cables (2) 48" #4 AWG Cables (4) 48" #4 AWG Cables
Cooling Fans 1 1 2 2
Cobra Remote Controller with Fast Charge USB Compatible Compatible Compatible Compatible
3.0 Amp USB Fast Charge Ports USB-A / USB-C USB-A / USB-C USB-A / USB-C USB-A / USB-C
Efficiency Rating 90% 90% 90% 90%
Pentagon Protection Safety
2 Year Warranty
cETL Certified
Terminal Protector Boots
Mounting Kit for Remote Controller

COUNT ON COBRA FOR
POWER WHERE YOU NEED IT

Be prepared for the unexpected with Cobra’s safe, reliable, and efficient family of power inverters. Whether you're a game day tailgater, a professional driver, a contractor, or a commuter — we've got the power and innovative solutions you're looking for.

WHAT'S IN THE BOX

Included with your POWER 500W power inverter are 16" #10 AWG power cables and a 16" 12-Volt accessory cable.

Item # CPI500W

Weight:  1.41 lbs (639.6 g)

Depth:  2.83 in. (71.89 mm)

Width:  5.39 in. (137 mm)

Height:  7.01 in. (178.1 mm)

The fan does not run

This is normal.  The fan will only run when needed, if the inverter starts to get hot.

The output voltage is low

The voltage from your inverter is a little different than the voltage in your home.  The voltage in your home is called a “sine wave”, while the voltage from the inverter is a “modified sine wave”.  Because of this difference, you will need a  meter that measures “true RMS” voltage.  If your meter does not measure “true RMS”, then it will read low.

If it does not say “true RMS” on the front of your meter, then it is not a true RMS meter and it will read low.

My outlet tester shows an open ground

Outlet testers are intended for testing normal utility power in your home.  With normal utility power, the neutral and ground are connected together in your fuse box.  Outlet testers are designed under this assumption.

The outlet on your power inverter, however, is not configured exactly the same as in your home.  It is normal for an outlet tester to show an open ground. This does not indicate a problem with your inverter.

Does it matter where I mount my inverter?

Your power inverter is not weatherproof, so it needs to be installed where it will be protected from heat and moisture.  Keep a minimum 1 inch clearance around the inverter for ventilation.

The inverter can be mounted in any position -- horizontal, vertical, or upside-down.

My inverter makes a squealing sound (alarm sound)

If the battery voltage gets too low, your inverter will sound a low-voltage alarm.  This can happen for any of the following reasons:

-The battery is low and needs to be charged

-A loose connection with the battery cables

-A loose connection in the cigarette socket (if you are using a cigarette power cord)

-The battery cables to the inverter are too small

-The appliance is pulling excessive power from the battery

If you get low voltage alarm then try running the engine so that the alternator is supplying extra power.  If you get the alarm even with the alternator running, then check all the cable connections.  There might be a loose connection somewhere.

How much power can I draw from each AC outlet?

If your inverter has more than one AC outlet, the full inverter power is available from any of the outlets.

 

See more FAQs