Harbor Freight 1 5 Amp 12V Three Stage Onboard Battery Charger Maintainer Product Manual
2015-05-27
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REV 14h
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.
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© 2008 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.
Item 99857 For technical questions, please call 1-888-866-5797. Page 2
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.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling,
and all other information
provided with this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
General Battery Charger Safety
Warnings
WARNING Read all safety
warnings and instructions.
Failure to follow the warnings and
instructions may result in electric
shock, fire and/or serious injury.
Save all warnings and
instructions for future reference.
The term ″Battery Charger″ in the
warnings refers to your mains-
operated (corded) Battery Charger.
1. Work area safety
a. Keep work area clean and well
lit. Cluttered or dark areas invite
accidents.
b. Do not operate Battery Chargers in
explosive atmospheres, such as in
the presence of flammable liquids,
gases or dust. Battery Chargers
create sparks which may ignite the
dust or fumes.
c. Keep children and bystanders
away while operating a Battery
Charger. Distractions can cause you
to lose control.
Item 99857 For technical questions, please call 1-888-866-5797. Page 3
2. Electrical safety
a. Battery Charger plug must match
the outlet. Never modify the
plug in any way. Do not use any
adapter plugs with grounded
Battery Chargers. Unmodified plugs
and matching outlets will reduce risk
of electric shock.
b. Avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
c. Do not expose Battery Chargers
to rain or wet conditions. Water
entering a Battery Charger will
increase the risk of electric shock.
d. Do not abuse the cord. Never use
the cord for carrying, pulling or
unplugging the Battery Charger.
Keep cord away from heat, oil,
sharp edges or moving parts.
Damaged or entangled cords
increase the risk of electric shock.
e. When operating a Battery Charger
outdoors, use an extension cord
suitable for outdoor use. Use of a
cord suitable for outdoor use reduces
the risk of electric shock.
f. If operating a Battery Charger in a
damp location is unavoidable, use
a Ground Fault Circuit Interrupter
(GFCI) protected supply. Use of
a GFCI reduces the risk of electric
shock.
3. Personal safety
a. Stay alert, watch what you are
doing and use common sense
when operating a Battery Charger.
Do not use a Battery Charger
while you are tired or under the
influence of drugs, alcohol or
medication. A moment of inattention
while operating Battery Chargers may
result in serious personal injury.
b. Use personal protective
equipment. Always wear eye
protection. Safety equipment such
as dust mask, non-skid safety shoes,
hard hat, or hearing protection used
for appropriate conditions will reduce
personal injuries.
c. Do not overreach. Keep proper
footing and balance at all times.
This enables better control of the
Battery Charger in unexpected
situations.
d. Dress properly. Do not wear loose
clothing or jewelry. Keep your
hair, clothing and gloves away
from moving parts. Loose clothes,
jewelry or long hair can be caught in
moving parts.
e. Only use safety equipment
that has been approved by an
appropriate standards agency.
Unapproved safety equipment may
not provide adequate protection. Eye
protection must be ANSI-approved
and breathing protection must be
NIOSH-approved for the specific
hazards in the work area.
4. Battery Charger use and care
a. Do not force the Battery Charger.
Use the correct Battery Charger
for your application. The correct
Battery Charger will do the job better
and safer at the rate for which it was
designed.
b. Disconnect the plug from
the power source from the
Battery Charger before making
any adjustments, changing
accessories, or storing Battery
Item 99857 For technical questions, please call 1-888-866-5797. Page 4
Chargers. Such preventive safety
measures reduce the risk of starting
the Battery Charger accidentally.
c. Store idle Battery Chargers out
of the reach of children and do
not allow persons unfamiliar
with the Battery Charger or these
instructions to operate the Battery
Charger. Battery Chargers are
dangerous in the hands of untrained
users.
d. Maintain Battery Chargers. Check
for breakage of parts and any
other condition that may affect
the Battery Charger’s operation.
If damaged, have the Battery
Charger repaired before use. Many
accidents are caused by poorly
maintained Battery Chargers.
e. Use the Battery Charger
in accordance with these
instructions, taking into account
the working conditions and the
work to be performed. Use of
the Battery Charger for operations
different from those intended could
result in a hazardous situation.
5. Battery use and care
a. When battery is not in use,
keep away other metal objects,
like paper clips, coins, keys,
nails, screws or other small
metal objects, that can make a
connection from one terminal
to another. Shorting the battery
terminals together may cause burns
or a fire.
b. Under abusive conditions,
liquid may be ejected from the
battery; avoid contact. If contact
accidentally occurs, flush with
water. If liquid contacts eyes,
additionally seek medical help.
Liquid ejected from the battery may
cause irritation or burns.
6. Service
a. Have your Battery Charger
serviced by a qualified repair
person using only identical
replacement parts. This will ensure
that the safety of the Battery Charger
is maintained.
Battery Charger Safety Warnings
1. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
2. Avoid contact with battery acid. If
splashed, unplug Battery Charger
and immediately wash effected area
with clean water.
3. Turn vehicle OFF and allow to cool
before plugging in Battery Charger.
Remove keys from vehicle ignition
before plugging in Battery Charger.
4. Before operation, check to be
sure Battery Charger cables are
connected to the correct battery
posts. Red must be connected to
the Positive (+) terminal. Black cable
must be connected to the Negative (-)
terminal.
5. Keep Output Wires (12) and Power
Cable (8) clear of fan, fan belt,
pulleys and any other moving parts of
the engine.
6. Only use Battery Charger in a well
ventilated area to prevent build up of
explosive gasses.
Item 99857 For technical questions, please call 1-888-866-5797. Page 5
7. Do not allow the Red and Black
terminals of the Battery Charger or
the vehicle battery cables to touch.
Do not allow the Red cables to
touch the frame or any metal part of
the vehicle. Contact can cause an
electrical short resulting in sparks,
burn injury or damage to property.
8. Only use in 12 VDC systems. Do not
use in any other voltage system.
9. Do not attempt to start or jump a
vehicle with this Battery Charger
plugged in. Do not use this Battery
Charger to charge a dead, damaged
or severely discharged battery. This
charger is designed to “top off” and
maintain a battery at or near 12 VDC.
10. Do not leave the Charger unattended
when it is plugged into an electrical
outlet. Unplug the Charger from its
electrical outlet before leaving.
11. The battery charger may
get hot during use. The
charger’s heat can build
up to unsafe levels and
create a fire hazard if it does not
receive adequate ventilation, due to
an electrical fault, or if it is used in a
hot environment.
Do not place the charger on a
flammable surface. Do not obstruct
any vents on the charger. Especially
avoid placing the charger on
carpets and rugs; they are not only
flammable, but they also obstruct
vents under the charger.
12. This product is not a toy. Keep it out
of reach of children.
13. 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. In addition,
people with pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked
on.
• Properly maintain and inspect to
avoid electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit
Interrupter (GFCI) should also be
implemented – it prevents sustained
electrical shock.
14. WARNING: The cord of this product
contains lead, a chemical known
to the State of California to cause
cancer, and birth defects or other
reproductive harm. Wash hands
after handling. (California Health &
Safety Code § 25249.5, et seq.)
15. WARNING: The brass components
of this product contain lead, a
chemical known to the State of
California to cause cancer and birth
defects or other reproductive harm.
(California Health & Safety Code
§ 25249.5, et seq.)
16. The warnings, precautions,
and instructions discussed in
this instruction manual 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.
SAVE THESE
INSTRUCTIONS.
Item 99857 For technical questions, please call 1-888-866-5797. Page 6
GROUNDING
TO PREVENT
ELECTRIC SHOCK
AND DEATH FROM
INCORRECT GROUNDING
WIRE CONNECTION:
Check with a qualified
electrician if you are in doubt
as to whether the outlet is
properly grounded. Do not
modify the power cord plug
provided with the tool. Never
remove the grounding prong
from the plug. Do not use the
tool if the power cord or plug
is damaged. If damaged, have
it repaired by a service facility
before use. If the plug will not
fit the outlet, have a proper
outlet installed by a qualified
electrician.
Grounded Tools: Tools with Three
Prong Plugs
1. Tools marked with “Grounding
Required” have a three wire cord
and three prong grounding plug.
The plug must be connected to a
properly grounded outlet. If the tool
should electrically malfunction or
break down, grounding provides a
low resistance path to carry electricity
away from the user, reducing the risk
of electric shock. (See 3-Prong Plug
and Outlet.)
2. The grounding prong in the plug is
connected through the green wire
inside the cord to the grounding
system in the tool. The green wire
in the cord must be the only wire
connected to the tool’s grounding
system and must never be attached
to an electrically “live” terminal. (See
3-Prong Plug and Outlet.)
3. The tool must be plugged into an
appropriate outlet, properly installed
and grounded in accordance with all
codes and ordinances. The plug and
outlet should look like those in the
preceding illustration. (See 3-Prong
Plug and Outlet.)
Double Insulated Tools: Tools
with Two Prong Plugs
1. Tools marked “Double Insulated”
do not require grounding. They
have a special double insulation
system which satisfies OSHA
requirements and complies with the
applicable standards of Underwriters
Laboratories, Inc., the Canadian
Standard Association, and the
National Electrical Code. (See
Outlets for 2-Prong Plug.)
Item 99857 For technical questions, please call 1-888-866-5797. Page 7
2. Double insulated tools may be used
in either of the 120 volt outlets shown
in the preceding illustration. (See
Outlets for 2-Prong Plug.)
Extension Cords
1. Grounded tools require a three wire
extension cord. Double Insulated
tools can use either a two or three
wire extension cord.
2. As the distance from the supply
outlet increases, you must use a
heavier gauge extension cord. Using
extension cords with inadequately
sized wire causes a serious drop in
voltage, resulting in loss of power and
possible tool damage.
(See Table A.)
3. The smaller the gauge number of the
wire, the greater the capacity of the
cord. For example, a 14 gauge cord
can carry a higher current than a 16
gauge cord. (See Table A.)
4. When using more than one extension
cord to make up the total length,
make sure each cord contains at
least the minimum wire size required.
(See Table A.)
5. If you are using one extension cord
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (See Table A.)
6. If you are using an extension cord
outdoors, make sure it is marked with
the suffix “W-A” (“W” in Canada) to
indicate it is acceptable for outdoor
use.
7. Make sure the extension cord is
properly wired and in good electrical
condition. Always replace a damaged
extension cord or have it repaired by
a qualified electrician before using it.
8. Protect the extension cords from
sharp objects, excessive heat, and
damp or wet areas.
RECOMMENDED MINIMUM WIRE
GAUGE FOR EXTENSION CORDS*
(120/240 VOLT)
NAMEPLATE
AMPERES
(at full load)
EXTENSION CORD
LENGTH
25’
50’
75’
100’
150’
0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
TABLE A
* Based on limiting the line
voltage drop to ve volts at
150% of the rated amperes.
Symbology
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
VAC Volts Alternating Current
AAmperes
n0 xxxx/min. No Load Revolutions per Minute
(RPM)
Item 99857 For technical questions, please call 1-888-866-5797. Page 8
SPECIFICATIONS
Electrical Requirements 120 VAC / 60 Hz
Output Voltage 12 VDC / 1.5 Amps
Charging Method 3-Stage trickle charge
Status Indicators Red, Yellow and
Green LED lights
Overload Protection
On / Off trickle
charging with Thermal
Overload Protection
Additional Protection Short Circuit and
Polarity Protection
UNPACKING
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown on the cover of this manual as soon
as possible.
INSTRUCTIONS FOR
PUTTING INTO USE
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Unplug the tool from its
electrical outlet and
disconnect from battery
before assembling or making
any adjustments to the tool.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Mounting
1. The Battery Charger must be
mounted near the battery in the
engine compartment of the vehicle.
2. Leave at least 2-½” clearance in front
of the Output Wires (12) Plug.
3. You can mount the Charger on the
vehicle engine compartment wall
near the battery, or you can mount
it on a bracket held in place by the
battery.
4.
Bracket A (9)
Bracket B (6)
Front View with Brackets
Side View with Brackets
For Engine Compartment Wall
mounting, mark and predrill wall using
Bracket A (9) or Bracket B (6) as a
template. See Figure 1 above. Be
sure that there are no wires, hoses
or other components behind the wall
that will be damaged by drilling. Use
Item 99857 For technical questions, please call 1-888-866-5797. Page 9
Brackets A and B to grip the Battery
Charger. Attach to the compartment
wall using two Self Tapping Screws
(12).
5.
Side View of Brackets
Assembly
Slide Bracket C (5)
under Battery
Attach Output Wires
to Battery Terminals.
Bracket B (6)
Bracket A (9)
For mounting under the battery,
assemble Brackets A, B and C (9, 6
and 5) as shown in Figure 2 above.
6. Slide Bracket C (5) under the battery
to hold the Charger in place.
7. Be sure the Battery Charger is firmly
attached and will not come loose
during normal vehicle use or during
a sudden stop. Periodically check
the Charger to be sure it is still firmly
attached. A loose Battery Charger
can become damaged, or damage
vehicle components.
8. Be sure the vehicle ignition switch
is in the OFF position. Using the
vehicle battery clamp bolts, attach
the round connectors of the Output
Wires (12) to the battery. Be sure
the Red Output Wire is attached
to the Positive (+) terminal and the
Black Output wire is attached to the
Negative (-) terminal. Be sure all
connections are tight.
9. Keep Output Wires (12) and Power
Cable (8) clear of fan, fan belt,
pulleys and any other moving parts of
the engine.
Functions
When plugged in, this Battery
Charger will charge a 12 VDC battery,
and maintain the charge. You can see
the state of charge by observing the
LED lights on the Charger.
3 Stage Charging
This charger automatically works
in three stages, depending on the
condition of your battery.
Item 99857 For technical questions, please call 1-888-866-5797. Page 10
10. 1st stage: Constant Current. When
the battery is severely discharged,
the Charger applies Constant
Current. This stage speedily charges
the battery while protecting against
damage, loss of Hydrogen or even
explosion. The battery is charged to a
maximum of 14.8 VDC.
11. 2nd Stage: Constant Voltage. This
is a speed charge cycle for batteries
nearly full. It will top off the battery at
14.8 VDC, utilizing a 200 mA trickle
charge.
12. 3rd stage: Floating Constant Voltage.
This stage maintains a fully charged
battery in its best condition by
constantly applying small “ticks” of
charge. The battery will never fall
below 13.5 VDC.
OPERATING INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Tool Set Up
TO PREVENT
SERIOUS INJURY:
Use only an appropriate
extension cord in good
condition to operate this
Battery Charger.
See pages 6 and 7 of this
manual for information on safe
use of extension cords.
Work Piece and Work Area Set Up
1. Designate a work area that is clean,
ventilated and well-lit. The work area
must not allow access by children or
pets to prevent injury and distraction.
2. Route the power cord along a safe
route to reach the work area without
creating a tripping hazard or exposing
the power cord to possible damage.
The power cord must reach the work
area with enough extra length to
allow free movement while working.
3. To prevent electrical shock, avoid
moisture or water in the work area.
General Operating Instructions
1. Be sure the vehicle engine is OFF,
the engine is cool and the key is
removed from the ignition.
Item 99857 For technical questions, please call 1-888-866-5797. Page 11
2. Never “Jump” or attempt to start the
vehicle while the Battery Charger is
plugged in.
3. Do not attempt to charge a damaged
or “dead” battery with this tool. This
charger is designed to “top off” and
maintain vehicle batteries at or
near 12 VDC. Attempting to charge
damaged or discharged batteries with
this tool may cause the battery or the
charger to overheat, possibly causing
damage or explosion.
4. Plug your extension cord into the
Power Cable (8). Plug the extension
cord into a GFCI protected 120 VAC
outlet.
LED
Color Meaning
Green Charger is plugged in.
Yellow Charger is charging battery. Turns off after
battery is charged.
Red
Cannot charge. Battery voltage too low or
battery is not connected properly. Charger
cannot charge batteries with less than 9V.
5. Observe the LED lights on the
charger to determine the operational
status of the circuit and the charger.
6. Periodically check the Battery
Charger during operation to be sure it
does not overheat.
7. Before starting or operating the
vehicle, unplug and put away the
extension cord.
MAINTENANCE AND
SERVICING
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
TO PREVENT
SERIOUS INJURY
FROM TOOL FAILURE:
Do not use damaged
equipment. If abnormal heat
occurs, or Charger overheats,
have the problem corrected
before further use.
Cleaning and Maintenance.
1. BEFORE EACH USE, inspect the
general condition of the Charger.
Check for loose screws, misalignment
or binding of moving parts, cracked
or broken parts, damaged electrical
wiring, and any other condition that
may affect its safe operation.
2. AFTER USE, clean external surfaces
of the tool with clean cloth.
3. WARNING! If the supply cord of
this Battery Charger is damaged,
it must be replaced only by a
qualified service technician.
Item 99857 For technical questions, please call 1-888-866-5797. Page 12
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not operate. LED
lights off.
1. No power at outlet.
2. Cord not connected.
1. Check power at outlet.
2. Check that cord is plugged in.
LED lights on, but tool does
not charge battery
Loose or dirty connection at
battery terminals.
Check connections. Clean and
retighten.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect power supply before service.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/
OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
PARTS LIST
Part Description Qty.
1 LED Light 3
2 Top Cover 1
3 Radiator (not shown) 1
4 Printed Circuit Board 1
5 Bracket C 1
6 Bracket B 1
7 Bottom Cover 1
8 Power Cable 1
9Bracket A 1
10 2.5 x 12 Self Tapping Screws 4
11 Transformer 1
12 Output Wires 1
Item 99857 For technical questions, please call 1-888-866-5797. Page 13
ASSEMBLY DIAGRAM
1 2 4
5
6
7
8
12
11
10
9
Item 99857 For technical questions, please call 1-888-866-5797. Page 14
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.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only, and are not
available individually as replacement parts.