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Cobra CPI-2500 Operating Instructions Manual

Made by: Cobra
Type: Operating Instructions
Category: Inverter
Pages: 14
Size: 1.05 MB

 

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A1 English

Our Thanks To You

Introduction

Thank you for purchasing the Cobra

®

CPI 2500

inverter. 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 6:00 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

Customer Assistance

© 2003 Cobra

®

Electronics Corporation

6500 West Cortland Street

Chicago, Illinois 60707 USA

www.cobra.com

Operating Instructions

Nothing Comes Close To A Cobra

English

2500 WATT POWER INVERTER

CPI 2500

Printed in China 

Part No. 480-060-P

 


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Features

• Three AC Receptacles
• Current Meter
• Remote On/Off Capable
• Automatic Thermal

Protection/Shutdown

• Reverse Polarity Protection
• Low Battery Alarm
• Low Battery Shutdown

A3 English

A2 English

Controls / Indicators 
and Product Features

Introduction

Introduction

AC Outlets

Current 

Meter

Positive Battery 

Cable Terminals

(Red)

Negative Battery 
Cable Terminals
(Black)

Ground
Terminal

Cooling Fans

Table of Contents

Introduction

Our Thanks to You  . . . . . . . . . . . . . . . . . . A1
Customer Assistance  . . . . . . . . . . . . . . . . A1
Controls and Indicators  . . . . . . . . . . . . . . A2
Product Features  . . . . . . . . . . . . . . . . . . . A2
Important Safety Information  . . . . . . . . . . . 1
Quick Evaluation Before Installation . . . . . . .4

Installation

Installation Requirements  . . . . . . . . . . . . . . 6
Mounting  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting Cables  . . . . . . . . . . . . . . . . . . . 8
Power Consumption  . . . . . . . . . . . . . . . . . 12
Ground Wiring  . . . . . . . . . . . . . . . . . . . . . 13

Operation

Turning Your Inverter On or Off  . . . . . . . . 14
Remote On/Off Switch  . . . . . . . . . . . . . . . 15
Power and Protection Indicators  . . . . . . . 16
Operating Limits  . . . . . . . . . . . . . . . . . . . . 17
Troubleshooting Guide  . . . . . . . . . . . . . . . 18
Specifications  . . . . . . . . . . . . . . . . . . . . . . 19

Warranty

Warranty  . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Customer Assistance

Maintenance . . . . . . . . . . . . . . . . . . . . . . . .21
Product Service  . . . . . . . . . . . . . . . . . . . . 21
Accessories and Order Form  . . . . . . . . . . 22

On/Off Power 

Switch

Remote 

On/Off 
Switch 

Jack

Power & Protection

Indicators

 


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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.

Continued...

CAUTION

 


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English

Important Safety
Information

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.

Caution: Rechargeable Appliances

Certain chargers for small nickel cadmium batteries 
can be damaged if connected to the Cobra

®

2500W

inverter. Two (2) 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
a 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

®

2500W 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).

Plug In Directly

Dangerous Voltages

Important Safety
Information

Introduction

 


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English

Quick Evaluation 
Before Installation

Introduction

Quick Evaluation 
Before Installation

Introduction

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:

A 12 volt DC power source (such as a vehicle battery).

1. 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.

A set of cables to connect the power source to the
inverter (not included).

The cables must be as short and thick as possible in
order to reduce the voltage drop between the power
source and the inverter when 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. 

#4 AWG stranded copper cable is recommended. 
It should be no longer than 1.5 meters (4 ft.). 

The end of the cable that connects to the inverter must
have its insulation stripped off for about 

1

2

inch (1.25 cm)

back from the end, exposing the bare copper. 

The other end of the cable, which connects to the power
source, must be terminated with a lug or other connector
that provides a secure, low resistance connection. 

For example, if the power source is a battery, the cable
must be terminated with a battery terminal that clamps
to the post on the battery. 

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 (see page 14

for details). If the power source is
a DC power supply, switch it Off
as well.

2. Connect cables to Power Input

Terminals (see page 8 for details).

3. Connect cables to power source

(see page 8 for details).

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 18 
or Power and Protection Indicators
section on page 16.

Power Supply

Test Load

On/Off Switch to Off

Connect Terminals

Connect Power Source

On/Off Switch to On

Connect Test Load

 


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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 1 inch (3 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.

Installation

Mounting Brackets

Mounting Hardware

Installation 
Requirements

Installation

 


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Connecting Cables (not 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. 

Use only copper wire. Aluminum wire has about 

1

3

more

resistance than copper wire of the same size, plus it is
difficult to make good, low-resistance connections to
aluminum wire.

We recommend two #4 AWG copper cables (90°C
insulation rating) as the minimum size for connections
between the battery and inverter.

Keep the cable length as short as possible, no more
than 4 ft. (1.5 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. Turn the On/Off Switch on the inverter to the Off

position. If the power source is a DC power supply,
switch it Off as well.

2. On the end of the cable that connects to the inverter,

strip back the insulation about 

1

2

inch (1.25 cm),

exposing the bare copper conductor.

3. Connect cables to the Power Input Terminals on right

side panel of the inverter. The red terminals are positive
(+) and the black terminals are negative (-). Insert the
bare ends of the cables into the terminals and tighten
the screws to clamp the wires safely.

4. Connect cables to the power source:

a. Connect each cable from the Negative (Black)

Terminals of inverter to the Negative Terminal
of the power source. Make a secure connection. 

b. Connect each cable from the Positive (Red)

Terminals of the inverter to the Positive Terminal
of the power source (the battery’s main fuse or 
the battery selector switch, if you are using one).
Make a secure connection.

Continued...

Connecting Cables

Connecting Cables

Installation

Installation

On/Off Switch to Off

Strip the Insulation

Insert Bare Cables

Connect Cables

 


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10 English

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 2500 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.

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.

NOTE  If only one power source is used, connect both
cables from the negative terminal of the inverter to the
negative terminal of the power source. Then connect
both cables from the positive terminals of the inverter
to the positive terminal of the power source.

Connecting Cables

Connecting Cables

Installation

Installation

 


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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 ten (10) to determine how many

power supply’s (12 volt) ampere-hours will be consumed.

Ground Wiring

There is a screw on the rear panel for Chassis Ground.
This is to connect the chassis of the inverter to ground.

The Chassis Ground Screw must be connected to a
grounding point, which will vary depending on where 
the unit is installed. Use a #8 AWG copper wire 
(preferably with green/yellow insulation) to connect 
the chassis ground screw to the grounding point.

In a Vehicle: Connect the Chassis Ground to the 
chassis of the vehicle. 

In a Boat: Connect to the Boat Grounding System

In a Fixed Location: Connect the Chassis Ground Screw
to earth ground by connecting to a ground rod (a metal
rod pounded into the earth) or other proper service
entrance ground.

Chassis Ground

Power Consumption

Ground Wiring

Installation

Installation

Laptop

100 Watts x 2 hours 
= 200 Watt-Hours

TV/VCR (up to 25")

115 Watts x 3 hours
= 345 Watt-Hours

Blender

300 Watts x 15 min 
= 75 Watt-Hours

 


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14 English

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 left side panel, switch the On/Off Switch 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.

To Turn the Power Inverter Off:

1. On the left side panel, switch the On/Off Switch to Off.

NOTE  The On/Off Switch turns the control circuit 
in the inverter On and Off. It does not disconnect
power from the inverter.

When the switch 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 the
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. 

Remote On /Off Switch (not included)

An optional Remote On/Off Switch (not included) can be
connected to the Remote Jack allowing you to turn the 
Cobra

®

CPI 2500 Inverter On or Off from a convenient location

when the inverter is installed in an out of reach location.

Power On & Off

Operation

Remote On /Off Switch

Operation

On/Off Switch to On

Remote Switch

Remote Jack

On/Off Switch to Off

 


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Power & Protection
Indicators

Operation

Operating Limits

Operation

Power and Protection Indicators

The Power and Protection Indicators include a green light,
a red light, an alarm and a current meter.

Green Light

Power On – The green light should remain On steady. 

Red Light and/or Alarm

Current Overload – The red light will turn On momentarily,
then the inverter will shutdown. The inverter will
continue to check for appropriate current levels while
trying to restart the load.

Voltage Overload – The red light will turn On and the
inverter will shutdown. The inverter will continue to
check for appropriate voltage levels while trying to
restart the load.

Voltage Shortage – As a warning that the voltage is 
getting low, the internal alarm will sound. When the
voltage is too low, the inverter will shutdown and the
red light will turn On. The inverter will continue to
check for appropriate voltage levels while trying to
restart the load.

Temperature Overload – The red light will turn On
momentarily, then the inverter will shutdown. The
inverter will continue to check for appropriate
temperature levels while trying to restart the load.

NOTE A momentary sound of the internal alarm
and/or flash of the red light is normal at start up.

Current Meter 

The current meter indicates the
current drawn from the battery. It
will not indicate the current drawn
by other loads also connected to 
the battery.

For long term operation, the current
meter should remain in the middle 
of the bar graph.

Operating Limits

Power Output

The inverter can deliver 2500 watts for about 60 minutes.
The inverter must cool for 15 minutes before it can
resume operation at 2500 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 

1

2

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 10.5V+/-0.3V, an audible low
battery warning will sound. The inverter will shut down if
the input voltage drops below 9.5V+/-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 15.75V+/-0.75V. 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.

0 Plugs at 0%

1 Plug at 40%

 


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Specifications 

Operation

Specifications

Continuous output power (1 hour)  . . . . . . . . . . . 2500w
Surge rating (0.1 second)  . . . . . . . . . . . . . . . . . . 5000w
Peak efficiency (12V – 1⁄2 load) . . . . . . . . . . . . . . > 88%
Efficiency (full load, 12V)  . . . . . . . . . . . . . . . . . . . > 83%
No load current draw . . . . . . . . . . . . . . . . < 0.5A (12.6V)
Output waveform (resistive load)  . . . Modified sine wave
Output frequency  . . . . . . . . . . . . . . . . . . . . 58HZ – 62HZ
Output voltage  . . . . . . . . . . . . . . . . . . . . . . 109V – 120V
Input voltage . . . . . . . . . . . . . . . . . . 10.4VDC – 14.4VDC
Alarm voltage (unload)  . . . . . . . . . . . . . . .10.2V – 10.8V
Shutdown voltage (unload)  . . . . . . . . . . . . . 9.2V – 9.8V
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.

18 English

Troubleshooting Guide

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

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

If you have any questions about operation or installing your new
Cobra

®

product, or if you are missing parts…

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 First Class 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 3 – 4 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.

Maintenance and 
Product Service

Customer Assistance

20 English

Limited 1-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 one (1) year 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.

Warranty

Warranty

 


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22 English

Name

Address (No P.O. Boxes)

City

State/Province

Zip

Country

Telephone

Credit Card Number         Type:  

Visa   

Mastercard   

Discover

Exp. Date

Customer Signature

Item #

U.S. Cost Each

Qty

Amount

U.S. Subtotal

(Tax if Applicable)

Shipping/Handling

Total

Optional Accessories

You can find the Remote On/Off Switch described 
above along with other 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, complete and return this 
order form to fax number 773-622-2269. Or call 
773-889-3087 (Press 1 from the main menu) 
8:00 a.m. to 6:00 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

The Cobra

®

line of quality
products includes:

CB Radios 

microTALK

®

Radios

Radar/Laser Detectors

Safety Alert

®

Traffic

Warning Systems

Accessories 

GPS (Global 
Positioning System) 

HighGear

Accessories

Amount Shipping/Handling*

$10.00 or less . . . . . $3.00

$10.01-$25.00 . . . . . $5.50

$25.01-$50.00 . . . . . $7.50

$50.01-$90.00 . . . . $10.50

$90.01-$130.00 . . . $13.50

$130.01-$200.00 . . $16.50

$200.01 plus . . . . . 10% of

purchase

Tax Table

Ohio, Wisconsin add 5%

Indiana, Michigan add 6%

California add 7.25%

Illinois add 8.75% 

*For AK, HI and PR add additional $26.95 for FedEx Next Day 

or $10.95 for FedEx 2nd Day. Excludes weekend and holiday
shipments.

Please allow 2-3 weeks for delivery in the U.S. Prices subject 
to change without notice.

An optional Remote On/Off Switch can be
connected to the Remote Jack allowing you to
turn the Cobra

®

CPI 2500 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)

Accessories and 
Order Form

Customer Assistance