Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 19l
Visit our website at: http://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2019 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product
described herein. Tools required for assembly and service may not be included.
Read this material before using this
product. Failure to do so can result in
serious injury. SAVE THIS MANUAL.
Specifications
Continuous Power 120 Watts
Input Voltage 11 - 15 Volts DC
Output Voltage 105 - 125 VAC / 57.5 - 62.5 Hz
Fuse 20A
Indicator Green LED = power on
Output Wave Form Modified Sine Wave
Outlets 1 - 120V grounded AC
Features - Overload Shutoff @ 126 - 168W
2 - USB shared 5VDC, 3.1A
- Low Voltage Shutoff @ 9.5-10.5VDC
Important Safety Information
1. This product is not a toy. Keep
it away from children.
2. Use as intended only.
3. Inspect before every use; do not use
if parts are loose or damaged.
4. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
5. Do not plug small appliances into the
inverter to directly recharge their nickelcadmium batteries. Always use the
recharger provided with the appliance.
6. Keep inverter away from any direct
heat source or combustible material.
7. Do not use electrically powered products in
the presence of flammable gases or liquids.
8. Do not use this item in rain, on a
boat, or any other wet area. Do not
expose to direct sunlight or heat.
9. Delicate device, handle with care.
Do not drop or strike this item.
10. Do not open housing. Contains
no user-serviceable parts. Internal
parts may be electrified, even with
unit off and power disconnected.
11. Do not overload this device. This device
is designed for loads up to 120 Watts at
120 Volts AC only. Check the wattage
of any device before using this item to
power it. Some rechargeable appliances
may damage the Power Inverter or the
appliance. When first using a rechargeable
device, check its temperature for the first
10 minutes. If it becomes abnormally hot,
do not use this device with the Inverter.
12. This device is designed for use in
12 VDC, negative ground systems only.
13. Allow adequate ventilation. Do not
cover this unit while it is plugged
in. This unit generates heat; without
proper ventilation it may overheat,
potentially causing a fire hazard.
14. Leave this device unplugged whenever
the car’s engine is turned off. To
help prevent draining and perhaps
damaging the battery, only plug this
device in while the car’s engine is on.
Page 2 For technical questions, please call 1-888-866-5797. Item 56574
15. Switch any device to be powered off
before plugging into this device.
16. Stay alert. Do not use while tired
or under the influence of drugs,
alcohol, or medication.
17. Store idle equipment. When not
in use, this product must be stored
in a dry location to inhibit rust.
18. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close proximity to
heart pacemaker could cause pacemaker
interference or pacemaker failure.
19. Do not use with positive ground electrical
systems. (Most automobiles, trucks, and
RV’s have negative ground systems.)
20. Do not use this inverter to power
sensitive devices such as medical
devices or computers. Do not use
in ignition protected areas.
21. Maintain product labels and nameplates.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
22. The warnings, precautions, and
instructions discussed in this instruction
sheet cannot cover all possible conditions
and situations that may occur. It must
be understood by the operator that
common sense and caution are factors
which cannot be built into this product,
but must be supplied by the operator.
Operating Instructions
Read the entire Important Safety Information section at the beginning of this
document including all text under subheadings therein before set up or use of
this product.
1. Move the vehicle outside any enclosed
structure. Turn on the vehicle’s engine.
2. Plug the Inverter into the vehicle’s 12V
(cigarette lighter) socket. The Inverter’s
green LED power indicator will light up.
3. To power a device or appliance:
a. With the device or appliance switched
off, plug it into the Power Outlet or
the USB Outlet on the Inverter.
b. Turn on the device and/or appliance.
Note: The total wattage of all items plugged
into the Inverter must not use more than
120 watts during continuous operation,
otherwise the Inverter may overload.
Note: This unit has an automatic shut off
feature if output is over 126 watts or if input
voltage is under 9.9 VDC or over 15.5 VDC.
4. If device suddenly stops working,
internal fuse may be blown.
See Maintenance, Step 3.
NOTICE: Some rechargeable appliances
may damage the Inverter or the appliance.
When first using a rechargeable device,
check the Inverter’s temperature for the first
10 minutes. If it becomes abnormally hot,
do not use this device with the Inverter.
Note: Connect the Inverter while the vehicle’s
engine is running. Thereafter the engine
can be on or off. If running the Inverter
with the engine off, run the engine every
hour for at least 10 minutes to recharge the
battery. Doing this will help prevent any
unexpected shutdown of the equipment.
This will also help ensure that there will be
enough battery power to start the vehicle.
WARNING! Due to the risk of carbon
monoxide inhalation, do not run the
vehicle’s engine within an enclosed area.
5. After use, turn off the device, then
unplug it from the Inverter.
6. Unplug the Inverter from the 12V
(cigarette lighter) socket.
Page 3For technical questions, please call 1-888-866-5797.Item 56574
Maintenance
Procedures not specifically explained in this manual must be performed only by a
qualified technician.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Disconnect all loads from the inverter before performing any procedure in this section.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise or vibration
occurs, have the problem corrected before further use.
1. BEFORE EACH USE, inspect the
general condition of the tool. Check for:
a. loose hardware,
b. misalignment or binding
of moving parts,
c. damaged cord/electrical wiring,
d. cracked or broken parts, and
e. any other condition that may
affect its safe operation.
2. Keep this unit clean and dry. Disconnect
the unit before cleaning. Clean only the
outside of this unit with a soft, dry cloth.
3. This device does not contain any
user replaceable parts. Internal
fuse (20A) should be serviced
by a qualified technician.
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability
standards, and warrants to the original purchaser that this product is free from defects in materials
and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to
damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside
our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent,
special or consequential damages arising from the use of our product. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion
may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection verifies the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
Record Serial Number Here:
Note: If product has no serial number,
record month and year of purchase instead.
26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
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