katbo KTB-BC1801 User manual

Model : KTB-BC1801
Model : KTB-BC1806
Model : KTB-BC1803
Automatic Battery Charger/Maintainer
OWNERS MANUAL
KTB-BC1801/1806 KTB-BC1803
PLEASE SAVE THIS OWNERS MANUAL AND READ BEFORE EACH USE. This manual
will explain how to use the battery charger safely and effectively. Please read and follow these
instructions and precautions carefully.

•1•
MPORTANT SAFETY INSTRUCTIONS
WARNING – RISK OF EXPLOSIVE GASES
WORKING IN THE VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES
GENERATE EXPLOSIVE GASES DURING NORMAL OPERATION. FOR THIS REASON,
IT IS IMPORTANT THAT YOU FOLLOW THESE INSTRUCTIONS EACH TIME YOU USE
THE CHARGER.
To reduce the risk of a battery explosion, follow these instructions and those published
by the manufacturer of the battery and any equipment you intend to use in the vicinity
of the battery. Review the cautionary markings on these products and on the engine.
WARNING:This product contains chemicals
known to the state of California to cause
cancer and birth defects or other reproductive
harm. Wash hands after handling.
•Keep out of reach of children.
•Use the battery charger on LEAD-
ACID,GEL and AGM-type rechargeable
batteries with recommended rated4.5- 32
Ah (6V) ,4.5- 120 Ah (12V) and 4.5-75Ah
(24V, KTB-BC1806), as used in
automobiles, trucks, tractors, airplanes,
vans, RVs, trolling motors, etc. This charger
is not intended to supply power to low-
voltage electrical systems, other than in a
motor-starting application.
WARNING: Do not use battery charger with
dry cell batteries that are commonly used with
home appliances. These batteries may burst
and cause injury or damage to property.
•Use only attachments recommended or sold
by the battery charger’s manufacturer. Use
of non-recommended attachments may
result in a fire, electric shock or injury.
•Locate the battery charger’s power cord so
it cannot be stepped on, tripped over, or
subjected to damage or stress.
•Do not operate the charger if it has received
a sharp blow, been dropped, or otherwise
damaged in any way. Take it to a qualified
professional for inspection and repair.
•Do not disassemble the charger. Take it to a
qualified professional when service or repair
is required.
•To reduce the risk of electric shock, unplug
the charger from the outlet before
attempting any maintenance or cleaning.
•Do not use an extension cord.
•Always charge the battery in a well-
ventilated area.
•Do not set the charger on flammable
materials, such as carpeting, upholstery,
paper, cardboard, etc.
•NEVER smoke or allow sparks or flames in
the vicinity of the battery or engine.
WARNING: RISK OF EXPLOSIVE GAS.
•Operate the charger as far away from the
battery as DC charger cables permit.
•Do not expose the charger to rain or snow.
•NEVER charge a frozen battery.
•NEVER set a battery on top of the charger.
•NEVER place the charger directly above a
battery being charged. Gases from the
battery will corrode and damage the charger.
•NEVER touch the battery clamps together
when the charger is energized.
•When disconnecting the battery charger, pull
by the plug, not by the cord. Pulling on the
cord may cause damage to the cord or plug.
•Do not operate the charger with a damaged
cord or plug.
•NEVER allow battery acid to drip onto the
charger.
•NEVER overcharge a battery.
PERSONAL SAFETY PRECAUTIONS
•Wear complete eye protection and
protective clothing when working near
lead-acid batteries. Always have someone
nearby for help.
•Have plenty of fresh water, soap and baking
soda nearby for use, in case battery acid
contacts your eyes, skin, or clothing. Wash
immediately with soap and water and seek
medical attention.
•If battery acid comes in contact with eyes,
flush eyes immediately for a minimum 10
minutes and get medical attention.
•Neutralize any acid spills thoroughly with
baking soda before attempting to clean up.
•Remove all personal metal items from your
body, such as rings, bracelets, necklaces
and watches. A battery can produce a short
circuit current high enough to weld a ring to
metal, causing a severe burn.
•Do not drop a metal tool onto the battery.
•If it is necessary to remove the battery from
the vehicle to charge it, always remove the
grounded terminal first.

•2•
ASSEMBLY INSTRUCTIONS
Remove all cord wraps and uncoil the cables prior to using the battery charger.
FEATURES/CONTROL PANEL
LED INDICATORS
CLAMPS REVERSED (red) LED
flashing: The connections are reversed.
CHARGING (yellow) LED lit: The
charger is charging the battery.
CHARGING (yellow) LED flashing:
The charger is in abort mode.
FULL (green)
LED pulsing: The battery is fully charged
and the charger is in maintain mode.
NOTE: See the Operating Instructions
section for a complete description of the
charger modes.
DIGITAL DISPLAY
The display will show the battery VOLTAGE
when the charger is not charging a battery.
When it goes into charging mode, the
display will automatically change to ON (to
show charging has started) and then show
the percent-of-charge of the battery being
charged and either 6,12 or 24 (the voltage
of the battery, determined by the charger). If
you manually stop the charging process (by
pressing the SWITCH button) before the
battery is fully charged, the display will show
OFF.
NOTE: During charging, the display will go
into sleep mode and will not show the
percentage of charge or voltage of the
battery. To turn the display back on, press
any button.
•Battery % – The Digital Display shows an
estimated charge percent of the battery
connected to the charger battery clamps.
•Voltage – The Digital Display shows the
voltage at the charger battery clamps in DC
volts, or the voltage of the battery, depending
on what mode the charger is in.
SWITCH BUTTON
Use this button to set the maximum charge
rate. Press the button until the desired
charge rate is selected.
2A(SLOW) – For charging small
batteries, such as those commonly used in
garden tractors, snowmobiles and
motorcycles.
Also used to maintain fully charged large
batteries.
6A (FAST) – For charging automotive,
marine and light truck batteries. Not intended
for industrial applications.
MAINTAINING (red) LED- Desulfation mode,
A special mode of operation designed for
sulfated batteries.
When Dormancy mode press the SWITCH
Button to turn on display.
GROUNDING AND AC POWER CORD CONNECTIONS
This battery charger is for use on a nominal
120 or 220 volt circuit. The plug must be
plugged into an outlet that is properly
installed and grounded in accordance with
all local codes and ordinances. The plug
pins must fit the receptacle (outlet). Do not
use with an ungrounded system.
NOTE: Pursuant to Canadian Regulations,
use of an adapter plug is not allowed in
Canada. Use of an adapter plug in the
United States is not recommended and
should not be used.

•3•
USING AN EXTENSION CORD
The use of an extension cord is not
recommended. If you must use an
extension cord, follow these guidelines:
•Pins on plug of extension cord must be the
same number, size, and shape as those of
plug on charger.
•Ensure that the extension cord is properly
wired and in good electrical condition.
•Wire size must be large enough for the AC
ampere rating of charger.
OPERATING INSTRUCTIONS
WARNING: A spark near battery may cause
a battery explosion.
IMPORTANT: Do not start the vehicle with
the charger connected to the AC outlet, or it
could result in damage to the charger
NOTE: This charger is equipped with an
auto-start feature. Current will not be
supplied to the battery clamps until a battery
is properly connected. The clamps will not
spark if touched together.
CHARGING A BATTERY IN THE VEHICLE
1. Turn off all the vehicle’s accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Place the charger on a dry, non-
flammable surface.
5. Lay the AC/DC cables away from any
fan blades, belts, pulleys and other
moving parts.
6. For a negative-ground vehicle (as in
most vehicles), connect the charger’s
POSITIVE (RED) clamp to the POSITIVE
(POS, P, +) battery post. Next, connect
the charger’s NEGATIVE (BLACK) clamp
to the vehicle chassis or engine block,
away from the battery.
7. For a positive-ground vehicle, connect the
charger’s NEGATIVE (BLACK) clamp to the
NEGATIVE (NEG, N, -) battery post. Next,
connect the charger’s POSITIVE (RED)
clamp to the vehicle chassis or engine
block away from the battery. NEVER
connect any clamps to the carburetor, fuel
lines or sheet-metal body parts.
8. Connect the charger to an electrical outlet.
9. Select the battery type and the charge rate.
10. When charging is complete, disconnect
the charger from the AC power, remove
the clamps from the vehicle’s chassis,
and then remove the clamp from the
battery terminal.
CHARGING A BATTERY OUTSIDE
OF THE VEHICLE
1. Place battery in a well-ventilated area.
2. Clean the battery terminals.
3. Connect a 24-inch long, 6-gauge (AWG)
insulated battery cable to the NEGATIVE
(NEG, N, -) battery post (i.e., jumper
cable) (not provided).
4. Connect the POSITIVE (RED) clamp to
the POSITIVE (POS, P, +) battery post.
5. Position yourself and the “negative post
extension” cable as far away from the
battery as possible, and connect the
NEGATIVE (BLACK) clamp to the cable’s
free end.
6. Connect the charger to the electrical outlet.
7. Select the battery type and the charge rate.
8. When charging is complete, disconnect
the charger from the AC power,
disconnect the negative clamp, and finally
the positive clamp.
9. A marine (boat) battery must be removed
and charged on shore.
CHARGE RATE
The charger will automatically adjust the
charging current, based on battery size, in
order to charge the battery completely,
efficiently and safely.
AUTOMATIC CHARGING MODE
When an Automatic Charge is performed,
the charger switches to the maintain mode
(see below) automatically after the battery is
charged.
ABORTED CHARGE
If charging cannot be completed normally,
charging will abort. When charging aborts,
the charger’s output is shut off and the
CHARGING (yellow) LED will flash. The
digital display will show an error code (see
the Troubleshooting section for a
description of the error codes). To reset
after an aborted charge, unplug the charger
from the AC outlet, wait a few moments and
then plug it back in.

•4•
DESULFATION MODE
Desulfation could take 8 to 10 hours. If
desulfation fails, charging will abort and the
CHARGING (yellow) LED will flash.
COMPLETION OF CHARGE
Charge completion is indicated by the
FULL (green)
LED. When pulsing, the charger has
switched to the maintain mode of operation.
MAINTAIN MODE
(FLOAT-MODE MONITORING)
When the FULL
(green) LED is pulsing, the charger has
started maintain mode. In this mode, the
charger keeps the battery fully charged by
delivering a small current when necessary.
If the charger has to provide its maximum
maintain current for a continuous 12 hour
period, it will go into abort mode (see
Aborted Charge section). This is usually
caused by a drain on the battery or the
battery could be bad. Make sure there are
no loads on the battery. If there are, remove
them. If there are none, have the battery
checked or replaced.
MAINTAINING A BATTERY
The KTB-BC1801 charge and maintain
both6 and 12volt batteries.
The KTB-BC1806 charge and maintain
both6,12 and 24volt batteries.
NOTE: The maintain mode technology
allows you to safely charge and maintain a
healthy battery for extended periods of time.
However, problems with the battery, electrical
problems in the vehicle, improper
connections or other unanticipated conditions
could cause excessive current draws. As
such, occasionally monitoring your battery
and the charging process is required.
USING THE BATTERY VOLTAGE TESTER
1. With the charger unplugged from the
AC outlet, connect the charger to the
battery following the instructions given in
previous sections.
2. Plug the charger AC power cord into the
AC outlet.
3. If necessary, press the SWITCH button
until the correct type is indicated.
4. Read the voltage on the digital display.
Keep in mind that this reading is only a
battery voltage reading; a false surface
charge may mislead you. Compare the
reading to the chart below.
6 V
Battery
Voltage
Reading
12 V
Battery
Voltage
Reading
Battery
Condition
6.4 or
More
12.8 or
More
Charged
6.1 to 6.3
12.2 to 12.7
Needs
Charging
Less than
6.1
Less than
12.2
Discharged
POWER-UP IDLE TIME LIMIT
If no button is pressed within 5 minutes
after the battery charger is first powered up,
the charger will automatically switch from
tester to charger if a battery is connected.
In that case, the charger will be set to charge
at the 2A rate
TESTING AFTER CHARGING
After the unit has been changed from tester
to charger (by selecting a charge rate), it
remains a charger. To change the battery
charger back to a tester, press the
SWITCH button until all charge rate LEDs
are off.
MAINTENANCE AND CARE
A minimal amount of care can keep your
battery charger working properly for years.
•Clean the clamps each time you are
finished charging. Wipe off any battery fluid
that may have come in contact with the
clamps to prevent corrosion.
•Occasionally cleaning the case of the
charger with a soft cloth will keep the finish
shiny and help prevent corrosion.
•Coil the input and output cords neatly when
storing the charger. This will help prevent
accidental damage to the cords and charger.
•Store the charger unplugged from the AC
power outlet in an upright position.
•Store inside, in a cool, dry place. Do not
store the clamps clipped together, on or
around metal, or clipped to the cables.

•5•
Error Codes
TROUBLESHOOTING/ERROR CODES
ERROR
CODE
DESCRIPTION
REASON/SOLUTION
F01
The battery voltage is still
under 5V(for a 6V,10V (for a
12V battery) or 19V (for a
24V battery) after 2 hours of
charging.
The battery could be bad. Have it checked or
replaced.
F02
The charger cannot desulfate
the battery.
The battery could not be desulfated; have it
checked or replaced.
F03
The battery was unable to
reach the “full charge” voltage.
May be caused by trying to charge a large battery
or bank of batteries on too low of a current setting.
Try again with a higher current setting or have the
battery checked or replaced.
F04
The connections to the battery
are reversed.
The battery is connected backwards. Unplug the
charger and reverse the connections to the battery.
F05
The charger was unable to
keep the battery fully charged
in maintain mode.
The battery won’t hold a charge. May be caused
by a drain on the battery or the battery could be
bad. Make sure there are no loads on the battery.
If there are remove them. If there are none, have
the battery checked or replaced.
F06
The charger detected that the
battery may be getting too hot
(thermal runaway).
The charger automatically shuts the current off
if it detects the battery may be getting too hot.
Have the battery checked or replaced.
If you get an error code, check the connections and settings and/or replace the battery.
Troubleshooting
PROBLEM
POSSIBLE CAUSE
REASON/SOLUTION
Battery clamps do not spark
when touched together.
The charger is equipped
with an auto-start feature. It
will not supply current to the
battery clamps until a battery
is properly connected. The
clamps will not spark if touched
together.
No problem; this is a normal
condition.
All three LEDs come on for 2
seconds, then turn off.
The charger is plugged into an
AC outlet.
No problem; this is normal.
The charger will not turn on
when properly connected.
AC outlet is dead.
Poor electrical connection.
Battery is defective.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and
extension cord for loose fitting
plug.
Have battery checked.
I cannot select a 6V, 12V
or 24V setting.
The charger is equipped
with Auto Voltage Detection,
which automatically detects
the voltage and charges the
battery.
No problem; this is normal.

•6•
SPECIFICATIONS
Input Voltage........................................................................100-130V AC @ 50/60Hz, 1.5A
Output Voltage..........................................................6V or 12V, with Auto Voltage Detection
Output Current Rating...............................................2A DC @6VDC; 2A/6A DC @12V DC
Input Voltage.........................................................................210-240V AC @ 50/60Hz, 1.0A
Output Voltage...........................................................6V or 12V, with Auto Voltage Detection
Output Current Rating.......................................... ….2A DC @6VDC; 2A/6A DC @12V DC
Input Voltage........................................................................ 100-130V AC @ 50/60Hz, 1.0A
Output Voltage....................................................6V,12V or 24V, with Auto Voltage Detection
Output Current Rating..........................2A DC @6V; 2A/6A DC @12V; 2A/4A DC @24V DC
Input Voltage........................................................................ 210-240V AC @ 50/60Hz, 1.5A
Output Voltage....................................................6V,12V or 24V, with Auto Voltage Detection
Output Current Rating..........................2A DC @6V; 2A/6A DC @12V; 2A/4A DC @24V DC
LIMITED WARRANTY
MAKES THIS LIMITED WARRANTY TO THE ORIGINAL RETAIL PURCHASER OF THIS
PRODUCT. THIS LIMITED WARRANTY IS NOT TRANSFERABLE OR ASSIGNABLE.
The Manufacturer warrants this battery charger for two (2) years from the date of purchase
at retail against defective material or workmanship that may occur under normal use and
care. If your unit is not free from defective material or workmanship, Manufacturer’s
obligation under this warranty is solely to repair or replace your product with a new or
reconditioned unit at the option of the Manufacturer. It is the obligation of the purchaser to
forward the unit, along with proof of purchase and mailing charges prepaid to the
Manufacturer or its authorized representatives in order for repair or replacement to occur.
Manufacturer does not provide any warranty for any accessories used with this product that
are not manufactured by KTB Electric and approved for use with this product. This Limited
Warranty is void if the product is misused, subjected to careless handling, repaired, or modified
by anyone other than Manufacturer or if this unit is resold through an unauthorized retailer.
Manufacturer makes no other warranties, including, but not limited to, express, implied or
statutory warranties, including without limitation, any implied warranty of merchantability or
implied warranty of fitness for a particular purpose. Further, Manufacturer shall not be liable for
any incidental, special or consequential damage claims incurred by purchasers, users or others
associated with this product, including, but not limited to, lost profits, revenues, anticipated
sales, business opportunities, goodwill, business interruption
and any other injury or damage. Any and all such warranties, other than the limited warranty
included herein, are hereby expressly disclaimed and excluded. Some states do not allow the
exclusion or limitation of incidental or consequential damages or length of implied warranty, so
the above limitations or exclusions may not apply to you. This warranty gives you specific legal
rights and it is possible you may have other rights which vary from this warranty.
THIS LIMITED WARRANTY IS THE ONLY EXPRESS LIMITED WARRANTY AND THE
MANUFACTURER NEITHER ASSUMES OR AUTHORIZES ANYONE TO ASSUME OR
MAKE ANY OTHER OBLIGATION TOWARDS THE PRODUCT OTHER THAN THIS
WARRANTY.
Warranty, Repair Service and Distribution Centers:
400-019-9621 [email protected]
www.ktbcharger.com