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OPERATOR’S MANUAL
750 Watt Power Inverter
Model No.
28.71495
Read and follow all Safety
Rules and Operating Instructions
before Every Use of this Product.
SAVE THESE INSTRUCTIONS.
Sears Brands Management Corporation,
Hoffman Estates, IL 60179 U.S.A.
00-99-001006/00
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TABLE OF CONTENTS
SECTION PAGE
IMPORTANT SAFETY INSTRUCTIONS 2
FEATURES 3
BEFORE USING YOUR POWER INVERTER 3
CONNECTING INVERTER CABLES 5
OPERATING INSTRUCTIONS 6
POWER SOURCE 8
LED DISPLAY 8
IF THE INVERTER FUSE BLOWS 9
TROUBLESHOOTING 9
SPECIFICATIONS 11
BEFORE RETURNING FOR REPAIRS 11
DIEHARD ONE-YEAR FULL WARRANTY
When operated and maintained according to all supplied instructions, if this DieHard
product fails due to a defect in material or workmanship within 1 year from the date of
purchase, return it to any DieHard outlet in the United States for free replacement.
This warranty gives you specic legal rights, and you may also have other rights which
vary from state to state.
Sears Brands Management Corporation, Hoffman Estates, IL 60179
FOR CUSTOMER ASSISTANCE OR REPLACEMENT PARTS,
CALL TOLL-FREE FROM 7 AM TO 5 PM CT
MONDAY THROUGH FRIDAY: 1-800-732-7764
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IMPORTANT: READ AND SAVE THIS SAFETY AND INSTRUCTION MANUAL.
SAVE THESE INSTRUCTIONS – The 71495 offers a wide range of features to
accommodate your needs. This manual will show you how to use your inverter
safely and effectively. Please read, understand and follow these instructions and
precautions carefully, as this manual contains important safety and operating
instructions. The safety messages used throughout this manual contain a signal
word, a message and an icon.
The signal word indicates the level of the hazard in a situation.
Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided,
could result in moderate or minor injury to the operator or bystanders.
Indicates a potentially hazardous situation which, if not avoided,
could result in damage to the equipment or vehicle or
property damage.
Safety messages in this manual contain two different type styles.
Unnumbered type states the hazard.•
Numbered type states how to avoid the hazard.•
The icon gives a graphical description of the potential hazard.
Pursuant to California Proposition 65, this product contains chemicals
known to the State of California to cause cancer and birth defects or
other reproductive harm.
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IMPORTANT SAFETY INSTRUCTIONS1.
SAVE THESE INSTRUCTIONS
Risk of electric shock or re.
Keep out of reach of children.1.1
Keep the inverter well ventilated in order to properly disperse heat generated 1.2
while it is in use. Make sure there are several inches of clearance around the
top and sides and do not block the slots of the inverter.
Make sure the inverter is not close to any potential source of ammable 1.3
fumes, gases or clothing.
Do not place the inverter in areas such as battery compartments or engine 1.4
compartments where fumes or gases may accumulate.
Keep the inverter dry.1.5
DO NOT allow the inverter to come into contact with rain or moisture.1.6
DO NOT operate the inverter if you, the inverter, the device being operated 1.7
or any other surfaces that may come into contact with any power source are
wet. Water and many other liquids can conduct electricity, which may lead to
serious injury or death.
Do not place the inverter on or near heating vents, radiators or other sources 1.8
of heat or ammable materials.
Do not place the inverter in direct sunlight. The ideal air temperature for 1.9
operation is between 50° and 80°F.
Only connect the power inverter to a 12-volt accessory outlet. Do not attempt 1.10
to connect the inverter to any other power source, including an AC power
source. Connecting to a 6-volt or 16-volt battery will cause damage to
the inverter.
Make sure the AC plug connection is tight.1.11
Do not modify the inverter in any way including cables, plugs or switches as it 1.12
may result in property damage or personal injury.
Incorrect operation of your inverter may result in damage and personal injury. 1.13
The inverter output is 110V AC and can shock or electrocute
the same as any ordinary household AC wall outlet.
Do not open – No user serviceable parts inside.1.14
This device does not include an internal Ground Fault Circuit 1.15
Interrupter (GFCI).
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FEATURES2.
3
1
4
5
2
6
Battery Clips1.
12 Volt Power Plug2.
Digital Display3.
LED Display4.
On/Off and Display Switch5.
AC Outlets6.
BEFORE USING YOUR POWER INVERTER3.
NOTE: This inverter is designed to be used with a single battery, up to group 31 type
and 130 Ah or smaller in size. Do not use with any larger battery type. Do not use
with multiple batteries connected in parallel.
NOTE: Do not use the inverter with a product that draws a higher wattage than the
inverter can provide, as this may cause damage to the inverter and product.
When you turn on a device or a tool that runs on a motor, the device basically goes
through two stages:
Start Up – Requiring an initial surge of power (commonly known as the 1.
“starting or peak load”).
Continuous Operation – Power consumption drops (commonly known as 2.
the “continuous load”).
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The wattage (WATTS) or amperes (AMPS) can normally be found stamped or
printed on most devices and equipment, or in the user’s manual. Otherwise, contact
the manufacturer to nd out whether the device you want to use is compatible with a
modied sine wave.
To calculate the wattage: Wattage = AMPS x 120 (AC Voltage).
To calculate the starting load: Starting Load = 2 x WATTS. In general, the start up
load of the device or power tool determines whether your inverter has the capability
to power it.
To calculate the continuous load: Continuous Load = AMPS x 120 (AC Voltage).
Always run a test to establish whether the inverter will operate a
particular piece of equipment or device. In the event of a power overload, the inverter
is designed to automatically shut down. This safety feature prevents damaging the
inverter while testing devices and equipment within the wattage range of the inverter.
If a device does not operate properly when rst connected to the inverter, turn
the inverter ON, OFF, and ON again in quick succession. If this procedure is not
successful, it is likely that the inverter does not have the required capacity to operate
the device in question.
This inverter is designed to power 100 watt devices or less when
used with the vehicle 12 volt accessory port. To use the full 750 watt output you must
use the battery clips adapter and connect the inverter directly to the battery.
NOTE: The 100 watt limit is to accommodate the fuse ratings for all vehicles. Some
vehicles may allow the full output. If the vehicle’s fuse blows when you switch on
the device you are trying to use, you have to either use a smaller device or use the
battery clips adapter and connect the inverter directly to the battery.
This inverter uses a nonsinusoidal waveform. Therefore we do not
recommend you use it to power the following devices:
Switch Mode Power Supplies;1.
Linear Power Supplies;2.
Class 2 Transformers;3.
Line Filter Capacitors;4.
Shaded Pole Motors;5.
Fan Motors;6.
Microwave Ovens;7.
Fluorescent and High Intensity Lamps (with a Ballast); and8.
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Transformerless Battery Chargers.9.
Doing so, may cause the device to run warmer or overheat.
CONNECTING INVERTER CABLES4.
The inverter and power source must be in the OFF mode.
Make sure you connect your inverter to a 12-volt power supply only.
Inverter connection:
Decide whether you want to use the 12 volt power plug (100 watts 1.
maximum) or the battery clamps (full inverter capacity).
Locate the positive and negative plastic terminals located on the back of 2.
the inverter and remove the terminal caps completely.
Install the positive (red) cable ring lug onto the positive (red) terminal screw. 3.
Install the negative (black) cable ring lug onto the negative (black) terminal
screw. Tighten each terminal so that the cable cannot come loose.
Connecting inverter cable to a vehicle (100 watts maximum):
DC Outlet
DC Plug
Remove the cigarette lighter from its outlet.1.
Push the 12-volt power plug rmly into the outlet.2.
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Connecting inverter cables to 12V battery or 12V power source:
NEGATIVE GROUNDED SYSTEM
Keep hands, hair, clothing and jewelry clear of battery terminals.1.
Wear eye protection and clothing protection.2.
Connect the positive (red) inverter terminal cable to the power source 3.
positive (+) or battery terminal. Make sure the connection is secure.
Connect the negative (black) inverter terminal cable to the power source 4.
negative (-) or battery terminal. Make sure the connection is secure.
To disconnect the inverter, reverse the above steps.5.
NOTE: The internal speaker may make a brief “beep” when the inverter is being
connected to or disconnected from the 12-volt power source.
Failure to make the correct connections will result in blown fuses
and permanent damage to the inverter.
OPERATING INSTRUCTIONS5.
Connect the inverter (see “CONNECTING INVERTER CABLES” section.1.
Make sure the device to be operated is turned OFF.2.
Plug the device into the inverter AC outlet.3.
Press and hold the ON/OFF switch to turn the inverter on. (The internal 4.
speaker will make a brief “beep”. This is normal.) The Output Wattage LED
will glow and the digital display will show .
Turn the device on. The display will now show the total wattage used by the 5.
device. To change the digital display, briey press the ON/OFF switch.
To disconnect, reverse the above procedure.6.
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NOTE: If more than one device is to be powered, start one device at a time to avoid
a power surge and overloading the inverter. The surge load of each device should
not exceed the inverters Continuous Operation wattage rate.
If there is a short circuit or power surge in the device, will display
and the alarm will sound. Press the ON/OFF switch to turn off the alarm. If the
displays after several attempts, there is a short circuit or the device requires more
“starting” or “peak” load than the inverter is capable of providing.
If you are using the power inverter to operate a battery charger,
monitor the temperature of the battery charger for about 10 minutes. If the battery
charger becomes abnormally warm, disconnect it from the inverter immediately.
NOTE: You can use an extension cord from the inverter to the device without
signicantly decreasing the power being generated by the inverter. For best
operating results, the extension cord should be no longer than 50 feet.
Using the USB Port
The USB port provides up to 500mA at 5V DC.
Plug the device into the USB port.1.
Turn the USB device on.2.
Reverse these steps when nished using the USB port.3.
Using the Inverter to Operate a TV or Audio Device:
The inverter is shielded and ltered to minimize signal interference. Despite this,
some interference may occur with your television picture, especially with weak
signals. Below are some suggestions to try and improve reception.
Make sure the television antenna produces a clear signal under normal 1.
operating conditions (i.e. at home plugged into a standard 120-volt AC wall
outlet). Also, ensure that the antenna cable is adequately shielded and of
good quality.
Try altering the position of the inverter, antenna cables, and television 2.
power cord. Add an extension cord from the inverter to the TV so as to
isolate its power cord and antenna cables from the 12-volt power source.
Try coiling the television power cord and the input cables running from the 3.
12-volt power source to the inverter.
Afx one or several “Ferrite Data Line Filters” to the television power cord. 4.
Ferrite Data Line Filters can be purchased at most electronic supply stores.
NOTE: You may hear a “buzzing” sound being emitted from inexpensive sound
systems when operated with the inverter. This is due to ineffective lters in the
sound system’s power supply. Unfortunately, this problem can only be resolved by
purchasing a sound system with a higher quality power supply or higher quality lter.
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POWER SOURCE6.
Your average automobile or marine battery at full charge will provide an ample power
supply to the inverter for approximately 3 hours when the engine is off. The actual
length of time the inverter will function depends on the age and condition of the
battery and the power demand being placed by the device being operated with
the inverter.
If you decide to use the inverter while the engine is off, we recommend you turn OFF
the device plugged into the inverter before starting the engine. To maintain battery
power, start the engine every 2 to 3 hours and let it run for approximately 10 minutes
to recharge the battery.
Although it is not necessary to disconnect the inverter when turning over the engine,
it may briey cease to operate as the battery voltage decreases. While the inverter
draws very low amperage when not in use, it should be unplugged to avoid
battery drain.
LED DISPLAY7.
The LED display identies the current status of the inverter.
VOLTS IN: The voltage of the vehicle’s battery, Portable Power jump starter or DC
power source.
VOLTS OUT: The voltage supplied to the device through the AC receptacle.
OUTPUT WATTAGE: The power or wattage supplied to the device plugged into
the inverter.
An audio alarm will sound when any of the following codes display. To stop the
alarm, press the ON/OFF switch:
• – The inverter is not functional. See warranty and call Customer Service
1-800-732-7764 (Hours: 7:00 am to 5:00 pm CST).
• – The vehicle’s battery voltage is more than 15.5-volts. The inverter will
automatically restart after the voltage drops below 15.0-volts.
• – The continuous load demand from the device exceeds the inverter’s
wattage output.
• – The inverter is overheated and automatically turns off for a period of 1
to 3 minutes to cool. Make sure the inverter is well ventilated. It will automatically restart after it cools.
• – The vehicle’s battery voltage is less than 10.5-volts.
• – Short circuit, power surge or overload in the device.
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IF THE INVERTER FUSE BLOWS8.
Your power inverter is tted with a fuse, which should not have to be replaced under
normal operating conditions. A blown fuse is usually caused by reverse polarity or a
short circuit within the device or equipment being operated.
If the fuse does blow, take the inverter to a qualied technician for repair.
TROUBLESHOOTING9.
PROBLEM REASON SOLUTION
Alarm is On Display shows . Device
has a short circuit or
demands too much surge
power.
Display shows . 12-volt
battery is too low.
Display shows voltage in
between 10.5 and 11.0-volts.
Cycle the inverter power OFF
and ON.
If problem persists, use a
larger inverter or a smaller
device.
Remove the defective device.
See warranty and call
Customer Service 1-800-7327764 (Hours 7:00 am to 5:00
pm CST).
Recharge/replace battery
12-volt battery is low.
Recharge/replace battery.
The inverter will automatically
shut off after battery voltage
reaches 10.5-volts.
Display shows . 12-volt
voltage is too high.
Display shows.Device
demands more than the
inverter’s continuous power
rating.
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If in a vehicle, repair/replace
the alternator or charging
system.
Use a properly sized and
rated 12-volt battery.
If the input voltage returns to
15-volts or less, the inverter
will automatically restart.
Cycle the inverter power OFF
and ON.
If problem persists, use a
larger inverter or a smaller
device.
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PROBLEM REASON SOLUTION
Alarm is On (Continued) Display shows . Inverter
is too hot.
Inverter does not turn on. Poor contact at terminals
Fuse is blown.
Increase the ventilation to the
inverter.
Move the inverter to a cooler
area.
Reduce the power
consumption of the device.
The inverter will automatically
reset after cooling.
Check for poor connection
to battery or power supply.
Make sure connection points
are clean. Rock the clamps
back and forth for a better
connection.
A blown fuse is usually
caused by reverse polarity
or a short circuit within the
inverter.
To replace, contact a qualied
service technician who will
diagnose the inverter and
replace the fuse(s) with the
appropriate replacement(s).
Inverter may be defective.
See warranty and call
Customer Service 1-800-7327764 (Hours 7:00 am to 5:00
pm CST).
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SPECIFICATIONS10.
Maximum Continuous Power 750 Watts
Surge Capacity (Output Wattage) 1500 Watts
No Load Current Draw <0.6 Amps
Wave Form Modied Sine Wave
Input Voltage Range 10.5 - 15.5V DC
Low Battery Alarm 10.7V - 11.3V DC
Output Voltage 110V - 125V AC
Low Battery Shutdown 10.2V - 10.8V DC
High Battery Shutdown 15V - 16V DC
Optimum Efciency >85%
Dimensions 8.5”L x 5.5”W x 2.75”H
Weight Approximately 3.5 lbs.
AC Outlets Two, 110V AC 3-Prong
DC Outlet One, USB 5V, 0.5 Amp
Fuse Not user replaceable
BEFORE RETURNING FOR REPAIRS11.
When an UNKNOWN OPERATING PROBLEM arises, please read the complete
manual and call the customer service number for information that will usually
eliminate the need for return.
If the above solutions do not eliminate the problem or for information about troubleshooting
or replacement parts, call toll-free from anywhere in the U.S.A.
1-800-732-7764
7:00 am to 5:00 pm Central Time Monday through Friday
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