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Cobra CPI1090 Operating Instructions Manual

Made by: Cobra
Type: Operating Instructions
Category: Inverter
Pages: 15
Size: 1.03 MB

 

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Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer Assistance

A1

Our Thanks to You

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

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Caution

Warning

Installation

Introduction

Thank you for purchasing the Cobra Power 

Inverter CPI1090. Properly used, this Cobra 

product will give you many years of reliable 

service.
How Your Cobra Power Inverter Works

The Cobra power inverter is an electronic product that has 

been designed and built to take low voltage DC (Direct 

Current) power from your automobile or other low voltage 

power supplies and convert it to standard 115 volt AC 

(Alternating Current) power like the current you have in 

your home. This conversion process thereby allows you  

to use many of your household appliances and electronic 

products in automobiles, RVs, boats, tractors, trucks and 

virtually anywhere else.

Customer Assistance 

Should you encounter any problems with this product,  

or not understand its many features, please refer to this 

owner’s manual. If you require further assistance after 

reading this manual, Cobra Electronics offers the  

following customer assistance services:

For Assistance in the U.S.A. 

Automated Help Desk English only.  

24 hours a day, 7 days a week 773-889-3087 (phone). 
Customer Assistance Operators English and Spanish.  

8:00 a.m. to 5:30 p.m. CT, Monday through Friday  

(except holidays) 773-889-3087 (phone). 
Questions English and Spanish.  

Faxes can be received at 773-622-2269 (fax). 
Technical Assistance English only.  

www.cobra.com (on-line: Frequently Asked Questions).  

English and Spanish. productinfo

@

cobra.com (e-mail).

For Assistance Outside the U.S.A. 

Contact Your Local Dealer

©2014 Cobra Electronics Corporation

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

Operating Instructions

Nothing Comes Close To A Cobra

™ 

1000 WATT POWER INVERTER

CPI1090

Printed in China 

Part No. 480-996-P

Version B

Nothing Comes Close to a Cobra

® 

For more information or to  

order any of our products,  

please visit our website:

www.cobra.com

The Cobra line of quality  

products includes:

 CB Radios
microTALK

®

 2-Way Radios

Radar/Laser Detectors
Mobile GPS Navigation Systems
HighGear

®

 Accessories

CobraMarine

®

 VHF Radios

Power Inverters
Accessories

CPI1090_MANL.indd   1-3

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A3

A2

Product Features

Intro

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Assistance

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Caution

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Introduction

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Power Button

Remote 

On/Off 

Switch 

Jack

AC Outlets

Negative Battery 

Cable Terminal 

(Black)

Positive Battery 

Cable Terminal 

(Red)

Cooling Fan

Contents

Introduction

Our Thanks to You . . . . . . . . . . . . . . . . . .  A1 

Customer Assistance  . . . . . . . . . . . . . . . .  A1 

Product Features  . . . . . . . . . . . . . . . . . . .  A2 

Important Safety Information . . . . . . . . . . .  1 

Quick Evaluation Before Installation . . . . . . . 4 

Installation

Installation Requirements   . . . . . . . . . . . . .  6 

Mounting  . . . . . . . . . . . . . . . . . . . . . . . . . .  7 

Connecting Cables  . . . . . . . . . . . . . . . . . . .  8 

Power Consumption   . . . . . . . . . . . . . . . .  12 

Operation

Turning Your Inverter On or Off . . . . . . . .  13 

Remote On/Off Switch  . . . . . . . . . . . . . . .  14 

Operating Indicators   . . . . . . . . . . . . . . . .  15 

Operating Limits   . . . . . . . . . . . . . . . . . . .  18 

Troubleshooting Guide . . . . . . . . . . . . . . .  19 

Specifications . . . . . . . . . . . . . . . . . . . . . .  20 

Warranty

Warranty   . . . . . . . . . . . . . . . . . . . . . . . . .  21

Customer Assistance

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 22 

Product Service  . . . . . . . . . . . . . . . . . . . .  22 

Optional Accessories Info   . . . . . . . . . . . .  23

 Features:

•  Two AC Receptacles
 5V/2.1 USB Output
•  Voltage & Power Meter

•  Remote On/Off Capable
•  Automatic Thermal 

Protection/Shutdown

•  Reverse Polarity 

Protection

•  Low Battery Alarm
•  Low Battery Shutdown

Voltage Input &  

Power Output  

Indicators

USB Outlet

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Intro

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Introduction

Important Safety Information

Important Safety Information 

Before installing and using your Cobra power inverter,  

please read these general precautions and warnings.

Caution and Warning Statements

To make the most of this inverter, it must be installed  

and used properly. Please read the installation and 

operating instructions carefully before installing and  

using it. Special attention must be paid to the CAUTION 

and WARNING statements in the manual. 

CAUTION Statements specify conditions which 

could cause damage to the unit or other equipment. 

WARNING Statements identify conditions that  

could result in personal injury or loss of life.

General Precautions

1.  Never install the inverter in a boat’s engine compartment 

where gas and battery fumes are present.

2.  Do not operate the inverter if it has been dropped  

or damaged in any way.

3.  Do not open the inverter; it contains no user-

serviceable parts. Attempting to service unit  

could cause electrical shock.

     NOTE Internal components remain  

charged after all power is disconnected.

4.  Do not expose the inverter to rain, snow,  

bilge water or spray.

5.  Do not obstruct the ventilation openings.
6.  Do not install the inverter in zero-clearance 

compartment.

CAUTION This inverter should be used in  

negative ground applications only.

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Important Safety Information

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Introduction

WARNING Power inverters contain components  

that tend to produce arcs or sparks. To prevent  

fire or explosion, do not install the inverter in  

areas or compartments containing batteries or 

flammable materials or in locations that require 

ignition-protected equipment.
WARNING To reduce the risk of fire, do not cover  

or obstruct the ventilation openings. Do not install 

inverter in zero-clearance compartment.

Proposition 65: Warning: Wash Hands After 

Handling Power Cord

The power cord on this product contains lead, a chemical 

known in the state of California to cause birth defects or 

other reproductive harm.

Caution: Rechargeable Appliances

Certain chargers for small nickel cadmium batteries  

can be damaged if connected to the Cobra 1000 watt 

inverter. Two particular types of equipment are  

prone to this problem: 

1.  Small battery-operated appliances 

such as flashlights, razors, and 

night lights that can be plugged 

directly into an AC receptacle to 

recharge.

2.  Certain battery chargers for 

battery packs used in hand  

power tools. These chargers have 

WARNING label stating that 

dangerous voltages are present  

at the battery terminals.

This problem does not occur with the vast majority of 

battery operated equipment. Most use a separate charger 

or transformer that is plugged into the AC receptacle 

and produces a low voltage output. If the label on the AC 

adapter or charger states that it produces a low voltage  

AC or DC output (less than 30 volts), the inverter will  

have no problem powering the adapter safely.

Cobra 1000 Watt Output Waveform

Some very sensitive electronic equipment may not operate 

satisfactory on “square wave” or “modified sine wave.” 
The output waveform is referred to as “square wave” or 

“modified sine wave.” It is a stepped waveform designed 

to have characteristics similar to the sine wave shape of 

utility power.
A waveform of this nature is suitable for most AC loads 

(including linear and switching power suppliers used in 

electronic equipment, transformers and motors).

Important Safety Information

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Introduction

Plug In Directly

Dangerous 

Voltages

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Quick Evaluation  

Before Installation

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Quick Evaluation  

Before Installation

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Quick Evaluation Before Installation 

This section provides you with basic information about the 

inverter and how to check its performance before installation.
Be sure to have on hand:
1. A 12 volt DC power source (such as a vehicle battery).

The power source must provide 

between 11 and 15 volts DC and  

be able to supply enough current to 

run the test load. As a rough guide, 

divide the wattage of the test load by 

10 to get the current (in amperes) 

the power source must deliver.

2. Cables to connect the power source to the inverter. 

Cables are supplied with the unit that are two feet  

long overall from the tip of the clamp shown to the 

stripped and tinned end for insertion in the Input  

End of the unit.
If user supplied cables are to be used, they must be  

as short and thick as possible in order to reduce the 

voltage drop between the power source and the inverter 

when it is drawing current from the power source.
If the cable suffers an excessive voltage drop, the inverter 

may shut down when drawing higher currents because 

the voltage at the inverter dropped below 10 volts.

3. A test load that can be plugged into the AC receptacle on 

the inverter for short term testing at a low power level. 

The following cables are recommended for testing low 

power level test loads only.

Test Load  

Minimum 

Power 

Cable Size

100W 

 # 16 AWG copper 

250W 

 # 12 AWG copper 

500W 

 # 8   AWG copper

To check your inverter’s performance before installation:

1.  Turn the inverter off.
2.  Connect cables to power input 

terminals.

3.  Connect cables to power source.
4.  Check to make sure all 

connections are secure.

5.  Turn the inverter on. If the power 

source is a DC power supply, 

switch it on first.

6. Plug in the test load.
The inverter should supply power  

to the load. If the inverter is not 

working properly, refer to the 

troubleshooting guide on page 20  

or power and protection indicators 

section on page 16.

            

 

 

 

NOTE A USB device can be 

used to check the output  

of the USB Outlet.

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Test Load

Power Button

Connect Terminals

Power Button

Connect Test Load

USB Outlet

Connect Power Source

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Mounting

Installation Requirements 

The inverter must be installed in an area that meets all  

of the following requirements:
A.  Dry  

Do not place in an area where water can drip  

or splash on the inverter.

B.  Cool 

Ambient air temperature should be between 30°F  

and 105°F (0°C and 40°C). The cooler the better.

C.  Ventilate 

Allow at least one inch (three cm) of clearance around 

the inverter for proper airflow. Make sure that ventilation 

openings on the ends of the unit are not obstructed.

D. Safe 

Do not install the inverter in the same compartment  

as a battery or in any compartment that contains  

flammable liquids such as gasoline.

E.  Close to Battery 

Install unit as close to battery as possible (without 

being in the same compartment) to minimize the  

length of cable required to connect the inverter to  

the battery. It is better and cheaper to run longer  

AC wires than longer DC wires (cables).

CAUTION To avoid fire, do not cover or  

obstruct ventilation openings. Do not install inverter 

in a zero-clearance compartment. Overheating may 

result.
CAUTION The inverter must only be connected to 

batteries with a nominal output voltage of 12 volts.  

It will not work with a 6 volt battery, and will be 

damaged if it is connected to a 16 volt battery.

WARNING This unit contains components  

which can produce arcs or sparks. To prevent  

fire or explosion, do not install in compartments 

containing a battery or flammable materials,  

or in a location which requires ignition  

protected equipment.
WARNING This unit is suitable for installation  

in negative ground applications only. Do not 

attempt to install to a positive ground application.

Mounting 

To mount your inverter:
1.
  Place the inverter on a flat surface with the  

mounting bracket against the mounting surface.

2.  Mount to secure surface using mounting hardware  

that is corrosion resistant (not included).

The inverter can be mounted horizontally or vertically. 

If mounted vertically, neither end of the unit should be at 

the top (to avoid foreign material from falling or settling 

into the unit).

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Mounting Hardware

DC 

TO A

C POWER INVER

TER

AC 1

15V/60HZ

Mounting Brackets

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Connecting Cables (included) 

Power wire and wiring are very important to the 

performance of the inverter. Because the inverter has a 

low voltage, high current input, low resistance wiring is 

essential between the battery and inverter. This is so it  

can deliver the maximum amount of energy to the load. 
Keep the cable length as short as possible, no more than 

four feet (one and a half meters). This will keep the voltage 

drop to a minimum.
If the cable has too much voltage drop, the inverter may 

shut down when drawing higher currents because voltage  

at the inverter may drop below 10 volts. If you must use 

longer cables, choose thicker cables, such as #2 AWG, 

and trim the ends of the cable to fit the terminals.

To connect the cables between the  

inverter and the battery:
1.
  Press the Power Button on the inverter to the off 

position. If the power source is a DC power supply, 

switch it off as well.

2.  Connect cable to the Power Input Terminals on input 

end of the inverter. The red terminal is positive (+) and 

the black terminal is negative (-). Insert the bare ends 

of the cables into the terminals and tighten the screws 

to clamp the wires securely.  

It is a good idea to check and tighten these screws 

from time to time. They can become loose by vibrations 

or thermal cycling.

3.  Connect cables to the power source:

a.  Connect the cable from the Negative (Black) 

Terminal of inverter to the Negative Terminal  

of the power source. Make a secure connection.

Connecting Cables

Connecting Cables

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CAUTION We recommend a main fuse in the 

battery’s positive cable to protect against DC  

wiring short circuits (external to the inverter).  

The fuse should be as close to the battery as 

possible. We recommend a Buss Fuse ANL-250  

or equivalent. The specific fuse ampere rating 

should be sized to allow operation of all your  

DC powered equipment.
CAUTION Remove any jewelry (watch, ring, etc.).  

Be careful not to short circuit the battery with any 

metallic object (wrench, etc.).

WARNING If you are making a permanent AC 

connection to the inverter, make sure that the AC 

wiring steps are performed before any DC wiring is 

done. (DC hook-up energizes internal components, 

regardless of the position of the On/Off Switch). 

Working on AC connections in such a circumstance 

may result in an electric shock.
WARNING 115 volt AC power is potentially lethal.  

Do not work on AC wiring when it is connected to  

the inverter (even if it is switched off) unless the  

DC power source is physically disconnected from  

the inverter. Also, do not work on AC wiring if it  

is connected to another AC power source such  

as a generator or the utility line.
WARNING You may observe a spark when  

making the connection because current can  

flow to charge the capacitors in the inverter.  

Do not make this connection in the presence  

of flammable fumes. Explosion or fire may  

result. Thoroughly ventilate the battery 

compartment before making this connection.

b.  Connect the cable from the Positive (Red) Terminal 

of the inverter to the Positive Terminal of the power 

source (the battery’s main fuse or the battery selector 

switch, if you’re using one). Make a secure connection.

You might observe a spark when you make this connection 

since current can flow to charge capacitors in the inverter. 
All power connections to your Cobra inverter must  

be Positive to Positive and Negative to Negative.

CAUTION Electrical installations must meet  

local and national wiring codes, and should be 

performed by a qualified electrician.
CAUTION Do not connect the inverter and another 

AC source (such as a generator or utility power)  

to the AC wiring at the same time. The inverter  

will be damaged if its output is connected to AC 

voltage from another source. Damage can even 

occur if the inverter is switched off.
CAUTION Do not connect the inverter to an AC 

branch circuit that has high-power consumption 

loads. It will not operate electric heaters, air 

conditioners, stoves, and other electrical  

appliances that consume more than 1000 watts.
CAUTION Loose connectors result in excessive 

voltage drop and may cause over heated wires  

and melted insulation.
CAUTION Reverse polarity connections (positive  

to negative) will blow internal fuses in the inverter 

and may permanently damage the unit. Such damage 

is not covered by the warranty.

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Connecting Cables

Connecting Cables

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Power Consumption 

For each piece of equipment you will be operating from  

the inverter, you must determine the battery’s reserve 

capacity (how long the battery can deliver a specific amount 

of current – in automotive batteries, usually 25 ampere) or 

ampere-hour capacity (a measure of how many amperes a 

battery can deliver for a specified length of time). 

Example – Reserve capacity: a battery with a reserve 

capacity of 180 minutes can deliver 25 ampere for 180 

minutes before it is completely discharged.
Example – Ampere-hour capacity: a battery with an 

ampere-hour capacity of 100 ampere-hours can deliver 

5 ampere for 20 hours before it is completely discharged.

To determine the battery ampere-hour  

capacity you require:
1.
  Determine how many watts each piece of equipment 

consumes. This can normally be found on the product 

label. If only the current draw is given, multiply the 

current draw by 115 to get the watt consumption.

2.  Estimate the time (in hours) that each piece of equipment 

will be running between battery charging cycles.

3.  Calculate the total watt-hours of energy consumption 

(power x operating time) using the average power 

consumption and the total estimated running time  

(in hours). Power x Operating Time = Watt-Hours.

4.  Divide the watt-hours by 10 to determine how many 

battery (12 volt) ampere-hours will be consumed.

Power Consumption

Power On and Off

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Laptop

100 watts x 2 hours  

= 200 watt-hours

Blender

300 watts x 15 minutes  

= 75 watt-hours

Turning Your Inverter On or Off 

Be sure to have your power inverter properly installed 

before attempting to turn the unit on (see installation 

page 6).
To turn the power inverter on:
1.
  If a DC power supply is being used as the power 

source, switch it on

2.  On the Output End, press the Power Button to on.

 

The inverter is now ready to deliver AC power to your loads. 

If several loads are to be operated by the inverter, turn  

them on separately, after the inverter has been turned on

This will ensure that the inverter does not have to deliver 

the starting currents required for all the loads at once.

NOTE The Power Button turns the control circuit  

in the inverter on and off. It does not disconnect 

power from the inverter.
When the button is in the off position, the inverter  

draws no current from the battery. When it’s in the 

on position, but no power is being supplied to a 

load, the inverter draws less than 500 milliamperes 

from the battery. This is low current draw. It would 

take more than a week to discharge a 100 ampere-

hour battery at this rate depending on the age of 

the battery. 

Power Button

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

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Nothing Comes Close to a Cobra

14

Remote On/Off Switch (not included)  

An optional Remote On/Off Switch (see page 24 to order 

accessories) can be connected to the Remote Jack 

allowing you to turn the Cobra power inverter on or off 

from a convenient location when the inverter is installed  

in an out of reach location.

Remote On/Off Switch

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Operating Indicators

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Remote Switch

Remote Jack

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operating Indicators 

Indicators at the Output End of the unit show the unit’s 

power status and alarms for conditions that could cause  

it to shut down.

 

 

 

 

 

Power on – The Voltage Input  

and Power Output indicators 

automatically toggle between input 

and output values at three-second 

intervals. The three LEDs indicate 

the mode the meter is in and the 

three digits indicate the voltage  

or power value. 
Current Overload Protection –  

If the inverter is overloaded,  

it will shut down to protect itself. 

The meter will flash as shown to 

indicate Overload Protect.
To restore normal operation, 

disconnect the excessive load  

and turn the unit Off and On  

again using the Power Button.
Short Circuit Protection – If the 

AC output of the inverter is short-

circuited for one second or more, 

it will shut down to protect itself. 

The meter will flash as shown to 

indicate Short Circuit Protect and 

an alarm will sound.
To restore normal operation, 

disconnect the short circuit and 

turn the unit Off and On again 

using the Power Button.

Over Current

Short Circuit

Output Watts

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Nothing Comes Close to a Cobra

16

Operating Indicators

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Operating Indicators

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Low Voltage Protection – If the 

DC input voltage drops below  

the alarm threshold of 11.3V the 

meter will flash as shown to 

indicate Low Voltage Protection, 

but the unit will continue to 

operate. If the input voltage drops  

to 10.0V or less, the inverter will 

shut down to protect itself, the 

meter will continue to flash as 

shown, and an alarm will sound.
To restore normal operation, return 

the DC input voltage to at least 

12V. The inverter will automatically 

return to normal operation.
 High Voltage Protection – If the 

DC input voltage rises above 15.0V, 

the inverter will shut down to protect 

itself, the meter will flash as shown 

to indicate Over Voltage Protection, 

and an alarm will sound.
To restore normal operation, return 

the DC input voltage to less than 

15V. The inverter will automatically 

return to normal operation.

High Voltage

Low Voltage

Over Temperature Protection –  

If the internal inverter temperature 

rises above the alarm threshold, 

the meter will flash as shown, an 

alarm will sound to indicate Over 

Temperature Protect, and the unit 

will continue to operate. If the 

internal temperature rises to 40ºC 

(104ºF), the inverter will shut down 

to protect itself, the meter will 

flash as shown and the alarm will 

continue to sound.

NOTE Internal inverter temperature 

can rise due to being operated in a 

high heat environment or due to the 

fan or vents being blocked during 

operation (even in relatively cool 

outside air).
To restore normal operation, turn 

the unit Off and allow it to cool. 

The inverter will automatically 

return to normal operation after  

it has cooled.

High Temperature

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

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18

19

Nothing Comes Close to a Cobra

Troubleshooting Guide

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Operating Limits 

Power Output

The inverter can deliver 1000 watts for about 60 minutes. 

The inverter must cool for 15 minutes before it can 

resume operation at 1000 watts. Note: The wattage  

rating applies to resistive loads.
The inverter will operate most AC loads within its power 

rating. Some induction motors used in freezers, pumps, 

and other motor-operated equipment require very high 

surge currents to start. The inverter may not be able  

to start some of these motors even though their rated  

current draw is within the inverter’s limits. The inverter  

will normally start single phase induction motors rated  

at one-half HP or less.

Input Voltage

The inverter will operate from input voltage ranging  

from 10 volts to 15 volts. Optimum performance will  

occur when the voltage is between 12 volts and 14 volts. 

If the voltage drops below 11.3V+/-0.3V, an audible low 

battery warning will sound. The inverter will shut down if 

the input voltage drops below 10.3V+/-0.3V. This protects 

the battery from being over-discharged. It will restart when 

the input voltage exceeds 12V+/-0.3V.
The inverter will also shut down if the input voltage 

exceeds 15.5V+/-0.5V. This protects the inverter  

against excessive input voltage. Although the inverter  

has protection against over-voltage, it may still be 

damaged if the input voltage were to exceed 16 volts.

Operating Limits

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Problem/Symptom
Low output voltage 
No output voltage 
 

 

No output voltage 

after prolonged use
 

 

 

 

 

 

 

 

No output voltage, 

“Protect” indicator 

lighted
 

 

No output voltage 

No output voltage 

 

 

Low battery alarm 

on all the time

Possible Causes
Overload 
Low input  

voltage
 

Thermal  

shutdown
 

 

 

 

 

 

 

 

High input  

voltage
 

 

 

Short circuit 

Inverter  

switched off
No power  

to inverter
Reverse  

DC polarity
Poor DC wiring
Poor battery 

condition

Solution
Reduce the load.
Recharge battery. 

Check connections 

and cable.
Allow inverter  

to cool off.
Reduce load, 

continuous 

operation input 

current required.
Improve ventilation; 

Make sure ventilation 

openings in the 

inverter are not 

obstructed.
Reduce ambient 

temperature.
Make sure  

the inverter is 

connected to  

12V battery.
Check regulation  

of charging system.
Check load for 

proper operation.
Turn inverter on

Check wiring  

to inverter.
Observe  

correct polarity.
Check connections.
Make sure battery  

is fully charged.

Troubleshooting Guide 

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21

Nothing Comes Close to a Cobra

®

20

Warranty and Trademark 

Acknowledgement

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Warranty

Specifications 

Continuous output power (1 hour)   . . . . . . . . . . .  1000W
Surge rating (0.1 second)  . . . . . . . . . . . . . . . . . .  2000W
Peak efficiency (12V – 1⁄2 load)   . . . . . . . . . . . . .  > 88%
Efficiency (full load, 12V) . . . . . . . . . . . . . . . . . . .  > 83%
No load current draw . . . . . . . . . . . . . . . .  < 0.6A (12.6V)
Output waveform (resistive load) . . .  Modified sine wave
Output frequency  . . . . . . . . . . . . . . . . . . . .  58HZ – 62HZ
Output voltage  . . . . . . . . . . . . . . . . . . . . . .  109V – 120V
USB output   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5V
Input voltage  . . . . . . . . . . . . . . . . .  10.4VDC – 14.4VDC
Alarm voltage (unload)   . . . . . . . . . . . . . . .11.0V – 11.6V
Shutdown voltage (unload)  . . . . . . . . . . .  10.0V – 10.6V
Operating temperature range . . . . . . . . . . . . .  0°C – 40°C 

(32°F – 104°F)

Storage temperature range   . . . . . . . . . . . .   -40°C – 85°C 

(-40°F – 185°F)

Protection   . . . . . . . . . Overload, short-circuit, overtemp,

reverse polarity, under/over voltage  

Notes

All protection is automatically recovered.
To protect the battery, if the unit needs to be restarted 

after low voltage protection, the voltage of DC input should 

be above 12V. 
To extend the life of the fan, it will stop when there is no 

load. The speed of the fan increases as the load increases.
The unit is completely insulated in input and output for 

added safety.

Specifications 

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Operation

Limited Two-Year Warranty  

For Products Purchased in the U.S.A.

Cobra Electronics Corporation warrants that its Cobra power 

inverter, and the component parts thereof, will be free of defects 

in workmanship and materials for a period of two years from the 

date of first consumer purchase. This warranty may be enforced by 

the first consumer purchaser, provided that the product is utilized 

within the U.S.A. 
Cobra will, without charge, repair or replace, at its option, defective 

power inverters, products or component parts upon delivery to the 

Cobra Factory Service department, accompanied by proof of the 

date of first consumer purchase, such as a duplicated copy of a 

sales receipt. 
You must pay any initial shipping charges required to ship the 

product for warranty service, but the return charges will be at 

Cobra’s expense, if the product is repaired or replaced under 

warranty. This warranty gives you specific legal rights, and you 

may also have other rights which may vary from state to state.
Exclusions: This limited warranty does not apply:
1.  To any product damaged by accident.
2.  In the event of misuse or abuse of the product or  

as a result of unauthorized alterations or repairs.

3.  If the serial number has been altered, defaced, or removed.
4.  If the owner of the product resides outside the U.S.A.
All implied warranties, including warranties of merchantability  

and fitness for a particular purpose are limited in duration to the 

length of this warranty. Cobra shall not be liable for any incidental, 

consequential or other damages; including, without limitation, to 

damages resulting from loss of use or cost of installation. 
Some states do not allow limitations on how long an implied warranty 

lasts and/or do not allow the exclusion or limitation of incidental or 

consequential damages, so the above limitations may not apply to you.

For Products Purchased Outside the U.S.A.

Please contact your local dealer for warranty information.

Trademark Acknowledgement  

Cobra

®

, Nothing Comes Close to a Cobra

®

 and the snake  

design are registered trademarks of Cobra Electronics  

Corporation, USA. Cobra Electronics Corporation™ is a  

trademark of Cobra Electronics Corporation, USA.

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Nothing Comes Close to a Cobra

22

Maintenance 

Very little maintenance is required to keep the inverter operating 

properly. The exterior of the unit should be cleaned periodically 

with a damp cloth to prevent accumulation of dust and dirt. At the 

same time, tighten the screws on the DC input terminals. Be sure 

vents and fans are free of dust or debris.

Product Service 

For any questions about operating or installing this new Cobra 

product, or if parts are missing…

PLEASE CALL COBRA 

FIRST

…do not return this product to the store. See customer 

assistance on page A1.
If your product should require factory service, please call Cobra 

first before sending your power inverter. This will ensure the 

fastest turn-around time on your repair. You may be asked  

to send your power inverter to the Cobra factory. 
It will be necessary to furnish the following to have the product 

serviced and returned.
1.  For warranty repair include some form of proof-of-purchase, 

such as a mechanical reproduction or carbon copy of a sales 

receipt. If you send the original receipt, it cannot be returned. 

2.   Send the entire product.
3.  Enclose a description of what is happening with the power 

inverter. Include a typed or clearly printed name and address  

of where the power inverter is to be returned.

4.  Pack power inverter securely to prevent damage in transit.  

If possible, use the original packing material.

5.   Ship prepaid and insured by way of a traceable carrier  

such as United Parcel Service (UPS) or Priority Mail to  

avoid loss in transit to:  

Cobra Factory Service 

Cobra Electronics Corporation 

6500 West Cortland Street 

Chicago, Illinois 60707 USA.

6.   If the power inverter is in warranty, upon receipt of your power 

inverter, it will either be repaired or exchanged depending on the 

model. Please allow approximately three to four weeks before 

contacting Cobra for status. If the power inverter is out of 

warranty, a letter will automatically be sent informing you  

of the repair charge or replacement charge.

If you have any questions, please call 773-889-3087 for assistance.

Optional Accessories 

Info

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer Assistance

Maintenance and  

Product Service

Intro

Operation

Customer

Assistance

Warranty

Notes

Notice

Main Icons

Secondary Icons

Caution

Warning

Installation

Customer Assistance

Optional Accessories 

You can find quality Cobra products and accessories at your 

local Cobra dealer, or in the U.S.A., you can order directly 

from Cobra.

Ordering from U.S.A.

Call 773-889-3087 for pricing or visit www.cobra.com.
For credit card orders, Call 773-889-3087 (Press 1 from 

the main menu) 8:00 a.m. to 5:30 p.m. CT, Monday through 

Friday.
Make check or money order payable to:  

Cobra Electronics, Attn: Accessories Dept. 

6500 West Cortland Street, Chicago, IL 60707 USA
To order online, please visit our website: www.cobra.com

 

 

 An optional Remote On/Off Switch can be 

connected to the Remote Jack allowing you 

to turn the Cobra CPI 1000 inverter on or off 

from a convenient location when the inverter  

is installed in an out of reach location.

Remote On/Off 

Switch (CPI A20)

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24

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