en Operating instructions
fr-CA Manuel
es-MX Instrucciones de uso
1 | English
Contents
2 1 Introduction
3 2 Important Safety Warnings and Instructions
3 2.1 Important Safety Instructions
3 2.2 Personal Precautions
5 2.3 Preparing to Charge
5 2.4 Charger Location
6 2.5 DC Connection
6 2.6 Follow These Steps When Battery is Installed in Vehicle
7 2.7 Follow These Steps When Battery is Outside Vehicle
7 2.8 AC Connection
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IMPORTANT SAFETY INSTRUCTIONS. SAVE THESE INSTRUCTIONS.
1 Introduction
The Bosch C3 charger is a one touch switch mode battery charger with fully automated pulse maintenance
and trickle charging functions. It has been developed to maintain and optimize the charging process to
ensure high quality and longest life of lead-acid, AGM, WET or GEL batteries. The Bosch C3 charger comes
equipped with an MCU processor which performs intelligent charging algorithms designed to avoid stressful
charges to the 6V (1.2Ah – 14Ah) or 12V (1.2Ah – 120Ah) batteries.
Save These Instructions
This manual will show you how to use your C3 charger safely and effectively.
Please read and follow these safety warnings and operating instructions carefully before operating the
Bosch C3 charger. Failure to follow these instructions may result in serious injury or property damage.
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2 Important SAFETY WARNINGS
and Instructions
2.1 Important Safety Instructions
Warning
!
Use the C3 charger for charging a lead acid,
AGM, WET or GEL battery only. It is not intended
to supply power to a low voltage electrical system
other than in a starter-motor application. Use of
the C3 charger for other purposes may result in
serious injury or property damage.
Warning
!
Do not use this C3 charger for charging dry-cell
or non-rechargeable batteries that are commonly
used in home appliances. These batteries may burst. Failure to follow this instruction may result
in death, serious injury or property damage.
Warning: Risk of Explosive Gases
!
Follow the safety instructions below, the
instructions published by the battery
manufacturer and the manufacturer of any
equipment you intend to use in the vicinity of the
battery. Review cautionary marking on the charger
or engine. Batteries generate explosive gases.
Failure to follow these instructions may result in
death, serious injury or property damage.
(1) Operate only in a well-ventilated area.
(2) Do not expose charger to rain or snow.
(3) Do not permit flames, sparks or hot
surfaces in the vicinity of operation.
(4) Do not drop metal onto the battery. This
may cause a spark or short a circuit and cause
an explosion.
(5) NEVER smoke or allow a spark or flame in
vicinity of battery or engine.
(6) To reduce risk of electric shock, unplug
charger from outlet before attempting
any maintenance or cleaning. Turning off
controls will not reduce this risk.
(7) Study all battery manufacturer's specific
precautions such as removing or not
removing cell caps while charging and
recommended rates of charger.
2.2 Personal Precautions
Warning
!
Wear complete eye and body protection. Do not
allow battery acid to touch your skin, clothing
or eyes. Failure to follow these instructions may
result in death, burns, blindness or other serious
injury or property damage. Ensure that another
person is available to come to your aid in the event
of an accident. If battery acid comes into contact
with your skin or eyes, immediately wash them with
clean running water for ten (10) minutes and get
medical attention.
Warning
!
Remove all personal metal items such as rings,
bracelets, necklaces and watches when working
with a lead-acid battery. A lead-acid battery can
produce a short-circuit current high enough to weld
a ring or other metal items. Failure to remove such
personal metal items may result in severe burns,
other serious injury or property damage.
Warning
!
Never charge a frozen battery. Charging a frozen battery may cause battery explosion and may result
in death, burns, blindness or other serious injury
or property damage. Remove the battery from the
vehicle, bring it into a warm room and let it thaw
before charging.
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Warning
!
Use only attachments recommended by Bosch
for use with the Bosch C3 charger. Use of
attachments not recommended for use by bosch
may result in electric shock, fire or other serious
injury or property damage.
Warning
!
Never operate the charger if the cord or the plug
is damaged. Damaged cords must be immediately
replaced by a qualified specialist. Never use the cord
to carry the charger or pull the plug from an outlet.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged cords may cause electric
shock, other serious injury or property damage.
Warning
!
Use only extension cords that comply with
section 2.8 of this instruction manual. Use of
an improper extension cord may result in a fire,
electric shock, other serious injury or property
damage. An extension cord should not be used
unless absolutely necessary. If an extension cord
must be used, make sure:
(1) That the pins on the plug of the extension cord
are the same number, size and shape as those
of the plug on the charger.
(2) That the extension cord is properly wired and
in good electrical condition.
(3) That the wire size is large enough for the AC
ampere rating of the charger as specified in
Section 2.8 AC Connection.
Warning
!
Do not disassemble or attempt to service or
repair the C3 charger. Never operate the charger
if it has received a sharp blow, been dropped,
or otherwise damaged in any way. Take it to a
qualified repair specialist or return to the place of
purchase. Incorrect disassembly, reassembly or
repair may result in fire, electric shock, other
serious injury or property damage. Setting the
charger “MODE” button to the standby position
(blue LED ring illuminated) will not reduce this risk.
Warning
!
This product contains chemicals known to the State
of California to cause cancer and birth defects or
other reproductive harm.
Warning
!
To reduce risk of electric shock, unplug charger
from outlet before attempting any maintenance or
cleaning. Turning off controls will not reduce this
risk.
Fuse Replacement
Warning
!
(1) Disconnect AC power from the outlet and
disconnect cable harness from the output
cord.
(2) Open fuse holder in the cable harness.
(3) Remove automotive style blade fuse
(4) Replace fuse with same type and size fuse
(10.0 Amp)
(5) Close fuse holder
Maintenance and Cleaning Instructions
Warning
!
The charger does not need any specific
maintenance. Only install, maintain, or service this
charger when it is disconnected from power socket.
(1) After use, wipe dirt or oil from clip, cord, an
the charger case with a dry cloth. (Do not use
any solvents)
(2) Corrosion on the clips may be removed with a
solution of water and baking soda.
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(3) Coil charger cords to prevent damage.
(4) Examine cords periodically and replace
damaged cords by the manufacturer, its
service agent, or similarly qualified persons in
order to avoid a hazard.
Moving and Storage Instructions
Warning
!
(1) When not in use, store the charger in a dry
place, preferably with its original packing. Do
not subject to sub-zero temperature which
could cause cord insulation to become stiff
and possibly crack when uncoiled.
(2) Place these instructions with the charger
during storage.
Warning
!
Study all battery manufacturer's specific
precautions such as removing or not removing cell
caps while charging and recommended rates of
charge.
2.3 Preparing to Charge
Warning
!
Failure to follow these instructions may result in
severe burns, other serious injury or property
damage.
(1) If it is necessary to remove the battery from
the vehicle to charge it, always remove the
grounded terminal first. Make sure that all of
the electrical accessories (heater, A/C, audio
system, lights, etc.) in the vehicle are turned
off to prevent a spark.
(2) Be sure that the area around the battery is
well ventilated while the battery is charging
and/or trickle charging.
(3) Clean the battery terminals before charging.
During cleaning, do not allow the dirt to come
into contact with your eyes, nose or mouth.
(4) Add distilled water at each cell until the
battery acid reaches the level specified by
the battery manufacturer. Do not overfill.
For a battery without removable cell caps,
such as valve regulated lead-acid-batteries,
carefully follow the manufacturer’s charging
instructions.
(5) Read, understand and follow all instructions
for the charger, battery, vehicle and any
equipment used on the battery and charger.
(6) Read all of the battery manufacturer’s specific
precautions while charging and recommended
rates of charge.
(7) Make sure that the charger (+) and (-) cable
clips make tight connections.
(8) Determine voltage of battery by referring
to car owner's manual and make sure that
output voltage selector switch is set at correct
voltage. If charger has adjustable charge rate,
charge battery initially at lowest rate.
2.4 Charger Location
Warning
!
Failure to follow these instructions may result in
severe burns, other serious injury or property
damage.
(1) Place the C3 charger as far away from the
battery as the cables permit.
(2) Never place the charger directly above or
below the battery while charging or trickle
charging; gases or fluids from the battery will
corrode and damage the charger.
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(3) Do not cover or put anything on top of the C3
charger. Do not operate the C3 charger in a
closed-in area or do not restrict the ventilation
in any way. Proper ventilation is needed for the
C3 charger not to overheat.
(4) Never allow battery acid to drip onto the C3
charger when reading the electrolyte specific
gravity or filling the battery.
2.5 DC Connection Precautions
Warning
!
(1) Connect and disconnect the DC clips only
after setting the charger “MODE” button
to standby (blue LED ring light is lit) and
removing the AC plug from the electrical
outlet. Never allow the DC clips to touch each
other.
(2) Attach the DC clips to the battery and chassis,
as indicated in Section 2.6(5), 2.6(6) and
2.7(2) through 2.7(5)
2.6 Follow these steps when battery is
installed in vehicle
Warning
!
A spark near the battery may cause a battery
explosion. To reduce the risk of a spark near the
battery:
(1) Always position the AC and DC cables safely
and as far away as possible from moving parts
such as hood, doors or hot engine parts.
(2) Stay clear of fan blades, belts, pulleys and
other moving parts that can cause injury.
terminal has a larger diameter then the
NEGATIVE (NEG, N, -) terminal.
(4) Determine which terminal of the battery is
connected (grounded) to the chassis. If the
negative post is connected to the chassis (as
in most vehicles), see step (5). If the positive
post is connected to the chassis, see step (6).
(5) For a negative-grounded vehicle, connect
the POSITIVE (RED) DC clip from the C3
battery charger to the POSITIVE (POS, P, +)
ungrounded terminal of the battery. Connect
the NEGATIVE (BLACK) DC clip to a heavy
gauge unvarnished metal part of the frame
or engine block away from the battery. Do
not connect the DC clip to any fuel lines,
carburetion device or sheet-metal body parts.
(6) For a positive-grounded vehicle, connect
the NEGATIVE (BLACK) clip from the C3
battery charger to the NEGATIVE (NEG, N, -)
ungrounded terminal of the battery. Connect
the POSITIVE (RED) DC clip to a heavy gauge
unvarnished metal part of the frame or engine
block away from the battery. Do not connect
the DC clip to any fuel lines, carburetion
device or sheet-metal body parts.
(7) Connect charger AC supply cord to electric
outlet.
(8) When disconnecting the C3 charger, turn the
“MODE” button to standby (blue LED ring is
illuminated), disconnect the AC cord, remove
first the DC clip from the vehicle chassis and
then remove the DC clip from the battery
terminal.
(3) Check the polarity of the battery terminals
first. Usually the POSITIVE (POS, P, +) battery
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2.7 Follow these steps when battery is
outside vehicle
Warning
!
A spark near the battery may cause a battery
explosion. To reduce the risk of a spark near the
battery:
(1) Check the polarity of the battery terminals
first. Usually the POSITIVE (POS, P, +) battery
terminal has a larger diameter than the
NEGATIVE (NEG, N, -) terminal.
(2) Attach at least a 24-inch long size 6-gauge
(American Wire Gauge standard sizes)
insulated battery cable to the NEGATIVE (NEG,
N, -) battery terminal.
(3) Connect the POSITIVE (RED) C3 charger DC
clip to the POSITIVE (POS, P, +) terminal of
the battery.
(4) Position yourself and the free end of the cable
previously attached to the NEGATIVE (NEG, N,
-) battery terminal as far away from the battery
as possible – then connect the NEGATIVE
(BLACK) C3 charger DC clip to the free end of
the cable.
(8) A marine (boat) battery must be removed
and charged on shore. To charge it onboard
requires specially designed equipment for
marine use.
2.8 AC Connection
Warning
!
(1) Recommended proper wire size (AWG) in
extension cords to use with battery charger
Length of cord feet
(m)
(AWG) Size of cord18181614
You may use heavier size wire – never lighter
25
(7.6)
50
(15.2)
100
(30.5)
150
( 45.6)
(5) Do not face the battery when making the final
connection.
(6) Connect charger AC supply cord to electric
outlet.
(7) When disconnecting the C3 charger, set the
“MODE” button to standby (blue LED ring is
illuminated), disconnect the AC cord, remove
first the NEGATIVE (BLACK) DC clip and then
remove the POSITIVE (RED) DC clip from the
battery terminal.
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3 Control Panel / List of Parts
1. Charger
2. Mounting hook
3. AC Power cord (to connect to 120V outlet)
4. Charging cable with cable lug (red and black)
4a. Cable fuse
5. DC clip for (+) Terminal (red)
6. DC clip for (–) Terminal (black)
7. Standby / power indicator
- Blue LED ring indicates standby
8. Mode selection button
- Charger has to be connected to the battery
9. Reverse polarity protection indicator
- Red LED indicates reverse hook up
10. Charging indicator
- Flashing LED indicates charging in process
11. Charge status indicator
- Illuminated LED indicates fully charged battery
and charger is operating in the trickle charging
mode
14. Mode 3 – 12V output (for car or marine
batteries)
15. Mode 4 – 12V output (for batteries at
temperatures <41⁰°F or for AGM batteries)
16. 12V operation indicator
4 Technical Data
Primary Input voltage AC: 120V / 60 Hz
Current: 1.2 A(rms) / 60 W
Secondary Rated output voltage: 6.3 V
12.6 V
Charging voltage: 14.7 V (± 0.25 V),
14.4 V (± 0.25 V),
7.2 V (± 0.25 V)
Charging current: 3.5 A (± 10 %),
0.8 A (± 10 %)
Degree of protection: IP 65 (dustproof, splash water proof)
Battery type: 6 V / 12 V lead acid battery (AGM, WET, GEL, open and VRLA)
Battery capacity: 6 V:1.2 Ah–14Ah / 12 V:1.2 Ah–120 Ah
Fuse (internal): 1.6 A
Ambient temperature: 0 °C to + 40 °C / 32 °F to 104 °F
Dimensions: 185 x 81 x 55 mm / 7 1/4" x 3 1/4" x 2 1/8" (L x W x H)
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5 Operating Instructions
5.1 Mode Selection
The Bosch C3 charger offers 4 different charging
modes to choose from as well as a pulse charging
function to recover deeply discharged batteries
(provided the battery is not irreparably damaged)
and a trickle charging mode to keep batteries fully
charged when not used.
After connecting a battery to the Bosch C3 charger,
the unit will automatically exclude modes which
do not apply to the specifications of the battery.
Depending on the voltage of the battery you have
connected to the charger, the C3 charger will let you
choose the following modes:
For 6V batteries the C3 charger will offer you:
Mode 1 | 6 V (7.2 V / 0.8 A)
Suitable for batteries with a capacity of less than
14 Ah in normal condition. Charging mode for WET
batteries and the majority of GEL batteries.
Press the mode selection button (8) to select Mode
1 and the indicator LED (12) will light up. If no other
selections are made, the charging process will start
automatically after a few seconds and the indicator
LED (10) will flash. After successfully charging the
battery, the charge status indicator LED (11) will
light up and the charge indicator LED (10) will turn
off.
After a short delay the unit will switch automatically
to the trickle charging mode and the charge status
indicator LED (11) is illuminated.
6V
For 12V batteries the C3 charger will offer you
the following 3 modes to choose from:
Mode 2 | 12 V (14.4 V / 0.8 A )
Suitable for batteries with a capacity of less than
14 Ah in normal condition. Charging mode for WET
batteries and the majority of GEL batteries.
Press the mode selection button (8) to select Mode
2 and the indicator LED (13) as well as the 12V
operation indicator LED (16) will light up. If no other
selections are made, the charging process will start
automatically after a few seconds and the indicator
LED (10) will flash. After successfully charging the
battery, the charge status indicator LED (11) will
light up and the charge indicator LED (10) will turn
off.
After a short delay the unit will switch automatically
to the trickle charging mode and the charge status
indicator LED (11) is illuminated.
Mode 3 | 12 V (14.4 V / 3.5 A)
Suitable for batteries with a capacity of more
than 14 Ah in normal condition. Charging mode
for WET batteries and the majority of GEL batteries.
Press the mode selection button (8) to select Mode
3 and the indicator LED (14) as well as the 12V
operations indicator LED (16) will light up. If no
other selections are made, the charging process
will start automatically after a few seconds and the
indicator LED (10) will flash. After successfully
charging the battery, the charge status indicator
LED (11) will light up and the charge indicator LED
(10) will turn off
After a short delay the unit will switch automatically
to the trickle charging mode and the charge status
indicator LED (11) is illuminated.
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Mode 4 | 12 V (14.7 V / 3.5 A)
Suitable for batteries with a capacity of more
than 14Ah in cold condition or for many AGM
batteries.
Press the mode selection button (8) to select Mode
4 and the indicator LED (14) as well as the 12V
operations indicator LED (16) will light up. If no
other selections are made, the charging process
will start automatically after a few seconds and the
indicator LED (10) will flash. After successfully
charging the battery, the charge status indicator
LED (11) will light up and the charge indicator LED
(10) will turn off
After a short delay the unit will switch automatically
to the trickle charging mode and the charge status
indicator LED (11) is illuminated.
Automatically selected modes:
5.2 Pulse Charging
This is an automatic function of the charger and
cannot be selected manually. If the battery voltage
at the start of the charging process is between 8V
(± 0.5V) and 10.5V (± 0.5V) in the 12V mode, the
charger operates automatically in the pulse charging
mode. On attaining a battery voltage above 10.5V
(± 0.5V), the unit continues to charge the battery
in the charging mode selected. This enhances the
charging process and ensures a better condition of
the battery.
The charger can be left connected to the battery of
a vehicle when it is not being used (ie. convertible,
motorcycle, classic car, etc.). The charger will
monitor the battery and keep it at a high charging
level without risk of damage.
5.4 Charger Protection Function
Appliance Protection Function
The charger switches to standby mode in the
following abnormal situations.
•Remainingbatteryvoltage<6V(12Vbatteries)
•Opencircuit
- no battery or only one pole is connected to
the charger
•Reversepolarity
- the DC cables from the charger are
incorrectly connected to the battery
In the event of reverse polarity, the LED (9) will light
up. If no other setting is chosen, the system remains
in standby mode.
In the event of a short, the cable fuse (4a) will
protect the unit and the electrical system from
damage.
Overheating Protection
If the unit becomes excessively hot during charging,
the output power is automatically reduced to avoid
damage to the charger.
5.3 Trickle Charging
The charger switches automatically to this mode
when the battery is fully charged. In this mode,
a small current is delivered to the battery when
necessary to keep the full charge.
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6 Service and Warranty Information
The C3 charger should only be repaired by qualified specialists using genuine service parts to maintain
operating reliability.
LIMITED WARRANTY
Robert Bosch LLC (“Seller”) warrants to the first using purchaser only that the battery charger sold to the first
using purchaser by Seller or its authorized dealers, retailers or service centers in the United States, Canada
and Mexico will be free from defects in material or workmanship for a period of two (2) years from date of
purchase. SELLER’S SOLE OBLIGATION AND YOUR EXCLUSIVE REMEDY under this Limited Warranty and,
to the extent permitted by law, any warranty or condition implied by law, shall be the repair or replacement
of parts, without charge, which are defective in material or workmanship. The Limited Warranty provided in
this Statement excludes any defects or damage arising from accident, alteration, misuse, abuse, improper
installation, unauthorized service work, external forces beyond Seller’s control, such as fire, flood, and other
acts of God. The Limited Warranty further excludes normal wear and tear on parts and damage to fragile
components (e.g. switches).
Any and all replaced and/or repaired battery chargers and/or parts shall assume the identity of the original
for purposes of the applicable warranty period.
TO THE EXTENT PERMITTED BY LAW, THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS AND IMPLIED
WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY
TO YOU.
IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING
BUT NOT LIMITED TO LIABILITY FOR LOSS OF PROFITS) ARISING FROM THE SALE OR USE OF THE
CONSUMER PRODUCT. SOME STATES IN THE U.S. AND SOME CANADIAN PROVINCES DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION
OR EXCLUSION MAY NOT APPLY TO YOU.
For more information on how to obtain your warranty, please call 1-800-521-5462.
June 2010 | C3 | Battery Charger Automotive Aftermarket
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