Model: CC6121.2
OWNER’S MANUAL
AUSTRALIAN & NEW ZEALAND STANDARD AS/NZS 60335.2.29 APPROVED
Congratulations on purchasing your Century selectable 6 volt and 12 volt automatic battery charger,
maintainer and rejuvenator. Please take the time to carefully read and understand this manual before
using this product.
IMPORTANT SAFETY ADVICE AND WARNINGS
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The CC6121.2 is designed to charge and maintain 6V and 12V conventional lead-acid batteries only,
including:
- Sealed Maintenance Free (SMF) flooded calcium batteries.
- Absorbed Glass Mat (AGM) and maintainable flooded batteries.
- Gel electrolyte type batteries.
Always refer to the battery manufacturers specifications and recommendations if you’re unsure of your
battery charging requirements. Eg. Such as removing or not removing cell caps whilst charging, battery
type, maximum charge rate etc..
Explosive gases may escape from the battery during charging so please ensure the battery is charged in a
well ventilated area - never in a closed room.
This charger is designed for indoor use only and should never be exposed to water, rain, snow, liquids etc.
Always wear eye protection when working near batteries.
Always turn battery charger or ignition off* before disconnecting a battery.
Do not attempt to use the charger if it has been dropped or damaged.
Do not attempt to use the charger if the cables or plugs are damaged.
Battery acid can cause burns. Suitable hand, eye and face protection and protective clothing must be
worn. It is highly recommended to wear PPE (Personal Protection Equipment) including safety glasses,
chemical resistant gloves and overalls.
First Aid: For advice, contact the Poisons Information Centre in Australia (phone 13 11 26) or the National
Poisons Centre in New Zealand (phone 0800 764 766), or contact a doctor immediately. If battery acid
enters your eyes, hold eyelids apart and flush the eye continuously with running water. Continue flushing
for at least 15 minutes or until advised to stop by poisons information centre, national poisons centre or
doctor. If battery acid contacts your skin or clothing, wash immediately with soap and water. If hair contact occurs, remove contaminated clothing and flush hair with soap and running water. Someone should
always be within range of your voice.
If electrolyte is swallowed, do NOT induce vomiting – give a glass of water. Seek immediate medical
assistance.
Never attempt to charge a damaged battery, frozen battery or non rechargeable battery.
Never place the charger on the battery or battery on the charger.
When working with lead-acid batteries, remove personal metal items such as rings, bracelets, necklaces,
watches and make sure you don’t short circuit the battery terminals with any type of metal tool, piece of
jewellery or other conductors as this will cause an explosion. You can wrap your spanner with insulation
tape to minimise the risk of a short circuit.
NEVER smoke, use an open flame or create sparks near a battery or charger during charging operation as
explosive gases may cause an explosion. Flames, sparks, burning cigarettes or other ignition sources must
be kept away at all times.
Do not disassemble the charger. Take it to a qualified and authorised person for repair.
Acid spill response: Bund and neutralise spills with soda ash or other suitable alkali. Dispose of residue as
chemical waste or as per local requirements.
If using a generator, you must ensure you use a surge protector to protect the charger from voltage
spikes.
Children should be supervised to ensure that they do not play with the appliance.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
The appliance should not be recharging non-rechargeable batteries.
* In some vehicles, ignition may be required to be placed in accessory mode where electronic memory
minder is present.
IMPORTANT: Never charge a 6V battery on the 12V setting as this may cause an explosion
and fire.
1 • Owner’s manual - Model. CC6121.2
MAIN FEATURES
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Automatic smart battery charger & maintainer with reconditioning. Ensure the correct
battery voltage setting is selected.
The battery charger is easy to use and requires no technical experience.
Fully microprocessor controlled with safety timers at every stage.
Multi Stage:
1 - Qualification - Battery condition check
2 - Battery rejuvenation (reconditioning mode)
3 - Soft start charging
4 - Bulk charging
5 - Absorption charging
6 - Battery analysis
7 - Float mode
8 - Long term maintenance pulse charge
Battery condition analysis.
Battery voltage retention analysis.
Automatic diagnosis and charge: On power up, the charger will automatically diagnose the
battery condition and determine if the rejuvenation mode (reconditioning) or charge cycle is
required.
Patented battery rejuvenation (reconditioning) technology: The charger has a unique
and patented rejuvenation feature which uses high voltage equalising and peak pulse reconditioning to repair sulphated batteries. This feature is fully automatic and depends on the
internal impedance of the battery. It also depends on whether the battery is still connected in
the vehicle.
Ultra low power consumption (ECO Mode)
Pulse charge for long term maintenance.
Can be left on 24/7 to ensure your battery is always maintained and fully charged: The
battery charger can be left permanently connected all year round. The intelligent charger
will monitor the battery voltage and will maintain it at peak performance with a special pulse
charge during long term maintenance. Please note that even if the battery charger incorporates this feature, Century Batteries does not recommend leaving the battery charger
connected 24/7.
Short circuit and reverse polarity protection.
Heavy-duty and corrosion-resistant output connectors.
Crocodile clips / Ring Terminals: It comes with a quick connect fly lead and heavy duty, fully
insulated crocodile clip harness and ring terminal harness.
Selectable 6 volt and 12 volt output.
12V
6V
Battery voltage selection switch
2 • Owner’s manual - Model. CC6121.2
TEMPERATURE & SAFETY PROTECTION:
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INTERNAL OVERHEAT PROTECTION: The charger has a built-in overheat and an overload
electronic circuit. This protects the charger from being damaged if overheated or overloaded
and will automatically decrease the charging current. Once the unit’s internal temperature
decreases to a safe level, the charger will resume normal charging.
SAFETY TIMER PROTECTION: The charger has safety timers for every stage. If the battery
voltage doesn’t reach a certain voltage within a certain time, the unit will stop charging as it
is highly likely that you are attempting to charge a severely discharged or heavily sulphated
battery. If any of the stages times out, the charger will immediately stop charging in order to
protect the battery. This will be indicated with the fault LED ON.
REVERSE POLARITY: The charger has reverse polarity protection. If the charger output leads
are connected reverse polarity, the fault LED will come on and the charger will be disabled.
Simply unplug the charger from AC power and then connect the output leads to the correct
polarity.
SHORT CIRCUIT PROTECTION: The charger will automatically turn off if the output leads are
short circuited and the fault LED will come on. This prevents the charger from being damaged
if the positive and negative crocodile clips or the optional ring terminals accidentally touch each
other while the charger is turned on.
ECO MODE: This Century battery charger has a built in ultra low power consumption circuit.
If AC power is connected and the battery is disconnected, after 10 seconds the charger will
automatically go into an ECO mode. During this mode the power drawn is less than 0.36W
which totals 0.01kWh per day power consumption. If AC power is connected and the battery
is connected, once the battery is fully charged and during the long term maintenance stage,
the total power consumption is around 0.03kWh per day.
The Power LED will flash RED to indicate ECO mode.
BATTERY TYPES & CAPACITY:
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Suits 6V and 12V conventional lead acid batteries: All SMF [Calcium], AGM/Flooded & Gel.
The Ah (Ampere Hours) capacities shown below are to be used as a general guide only. Refer
to the battery manufacturers specifications and recommendations for your charging requirements.
Model No. CC6121.2
Charge Rate:
1.2A
Charging
4 - 24Ah
Maintaining
< 100Ah
These figures are based on 5 to 30% of battery Ah rating. For optimum charging, 10% of battery Ah
rating is recommended for flooded batteries and 20% of battery Ah rating is recommended for AGM
& Gel batteries.
Visit http://www.centurybatteries.com.au/battery-charging or http://www.centurybatteries.co.nz/
battery-charging for further advice.
3 • Owner’s manual - Model. CC6121.2
ELECTRICAL PARTS & ACCESSORIES:
AC Power:
SAA 2 Pin AU Plug
DC Output Lead:
1.2m with quick connect
Charging Leads:
Quick connect 60cm Crocodile Clip harness and 60cm
Ring Terminal harness
TECHNICAL SPECIFICATIONS:
Model Number
CC6121.2
Output
1.2A @ 6V DC & 12V DC
Input Voltage
100-240Vac / 0.4A - 0.2A (22W) - 12V
100-240Vac / 0.24A - 0.12A (11W) - 6V
Input Frequency
50/60Hz
Charge Voltage
7.2V / 14.4V
Float Voltage
6.8V / 13.6V
Start Voltage
3V / 8V
Operating Temperature
-10 to 40° C
Storage Temperature
-25 to 85°C
Operating Humidity
90% RH Max.
Size (L*W*H)
109mm x 64mm x 35mm
Weight
500g (approx.)
Approvals
CE, AS/NZS, EMC
CHARGING INSTRUCTIONS:
STEP 1 - Pre charge check & electrolyte level check
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Check the Battery Electrolyte levels (On Sealed Maintenance Free batteries, check the State of
Charge indicator). If necessary, remove the vent caps and add distilled water so the levels are
halfway between the upper and lower fill lines.
Check the battery voltage, type and Ah capacity to ensure the charger is compatible.
Visit http://www.centurybatteries.com.au/battery-charging or
http://www.centurybatteries.co.nz/battery-charging for further advice.
Ensure the battery is in a well ventilated area and the charger should be as far away from the
battery as the cables permit.
IMPORTANT: Please make sure the correct battery
voltage is selected to suit your battery type. For 6V
batteries make sure the unit is switched to 6V and for
12V 6V
12V batteries make sure the unit is switched to 12V.
The battery voltage select switch is located on the left
Battery voltage selection switch
hand side of the charger.
4 • Owner’s manual - Model. CC6121.2
STEP 2 - Connecting the battery charger to your battery
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If the Battery is out of the vehicle:
- Connect the Red (+) Crocodile clip or optional ring terminal to the (+) battery terminal.
- Connect the Black (-) Crocodile clip or optional ring terminal to the (-) battery terminal.
RED
BLACK
RED
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BLACK
If the battery is still in the vehicle, determine if the vehicle is positively or negatively earthed.
If Negatively Earthed (Most Common) – FIRST Connect the Red (+) Crocodile clip or optional
ring terminal lead to the (+) battery terminal and then connect the Black (-) Crocodile clip or
optional ring terminal lead to the vehicle’s chassis. DO NOT connect the Black (-) lead to the
carburettor or fuel lines.
RED
RED
BLACK
BLACK
RED
CONNECTION
RED IN VEHICLE
(POSITIVELY EARTHED)
CONNECTION IN VEHICLE
(NEGATIVELY EARTHED)
BLACK
BLACK
BLACK
CONNECTION IN VEHICLE
(POSITIVELY EARTHED)
CONNECTION IN VEHICLE
(NEGATIVELY EARTHED)
BLACK
BLACK
RED
Gel
RED
Battery type
Gel
Battery type
If Positively Earthed – FIRST Connect the Black (-) Crocodile clip or optional ring terminal lead
to the (-) battery terminal and then connect the Red (+) Crocodile clip or optional ring terminal
lead to the vehicle’s chassis. DO NOT connect the Red (+) lead to the carburettor or fuel lines.
CONNECTION IN VEHICLE
(POSITIVELY EARTHED)
CONNECTION IN VEHICLE
(NEGATIVELY EARTHED)
Gel
Battery type
STEP 3 - Plug the battery charger into a Mains Power outlet (100-240Vac)
Note: If the Fault Indicator LED illuminates Red, please check your connections as it is likely
that the Positive and Negative Leads are reversed. The Fault Indicator may also illuminate if the
6V setting has been selected for a 12V battery, as long as the 12V battery’s state of charge is
over 8V.
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The charger will automatically start when AC power is connected and switched on.
5 • Owner’s manual - Model. CC6121.2
RED
THE CHARGING PROCESS:
1) Qualification - Battery Condition Check - Orange Charging LED Flashing Fast
When the charger is first switched on it checks the battery condition to determine whether the
battery needs reconditioning. During this qualification process it checks the internal impedance
and initial voltage of the battery and it will determine how much charge current, if any that the
battery will accept.
2) Enhanced Battery Rejuvenation - Orange Charging LED Flashing Fast
If the initial qualification detected that the battery was in poor condition, the patented rejuvenation process will begin automatically. During the rejuvenation process a high voltage equalising and peak pulse reconditioning charge is used to repair the sulphated battery. This unique
patented feature will break down and dissolve the lead-sulphate crystal build up on the battery
plates which will extend the life of your battery. It can also balance out high concentrations of
acid. The equalisation voltage will be 8V maximum for 6V battery selection and 16V maximum
for 12V battery selection.
3) Soft Start Charging - Orange Charging LED Flashing Slow
Gently charges the battery using a reduced charge output until the battery voltages reaches
5.5V for 6V battery selection or 11V for 12V battery selection. If the battery voltage doesn’t reach
these levels within 6 hours, the safety timer protection will stop the unit from charging, the Red
Fault LED will illuminate and the Orange Charging LED will start flashing.
4) Bulk Charging - Orange Charging LED ON
Uses the maximum charge output until the battery voltage reaches 7.2V for 6V battery selection
or 14.4V for 12V battery selection. If the battery voltage doesn’t reach these levels within 24
hours, the safety timer protection will stop the unit from charging, the Red Fault LED will illuminate and the Orange Charging LED will illuminate.
5) Absorption Charging - Orange Charging LED ON
Uses a constant voltage while reducing the charging output current to ensure the battery
receives a full charge without overcharging the battery.
6) Battery Analysis - Full/Float Green LED ON
The battery analysis stage checks the condition of the battery after the charge cycle is completed. If the battery voltage drops too quickly during the analysis mode, this means the battery
is probably faulty. If the battery analysis failed, this is indicated by the Green Full LED flashing.
7) Float Mode - Full/Float Green LED ON
This stage allows you to keep the charger connected 24/7 to ensure your battery is well maintained and kept 100% fully charged. Float mode will maintain the battery at a constant 6.8V for
6V battery selection or 13.6V for 12V battery selection.
8) Long Term Maintenance - Full/Float Green LED ON
During long term maintenance / float mode, the unit will apply a special pulse charge to ensure
the battery is kept in optimal condition.
6 • Owner’s manual - Model. CC6121.2
STEP 4 - Disconnecting the Battery Charger from the Battery
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If the Battery is out of the vehicle:
(1) Switch OFF and Remove the Charger from the outlet.
(2) Remove the Black lead and then the Red lead.
• If the battery is still in the vehicle:
(1) Switch OFF and Remove the Charger from the outlet.
(2) Remove the lead from the vehicle chassis.
(3) Remove the lead from the battery.
Note: Check electrolyte levels if possible after charging as they may need topping up with distilled
water. (This does not apply to sealed maintenance free batteries)
LED STATUS INDICATOR TABLE:
LED
Status
Description
Power LED
Red
ON
Red
Flashing
Indicates AC power is ON
Indicates AC power is ON and no Battery has been detected. ECO Mode.
Charging LED
Orange
Flashing Fast
Qualification and battery condition check
Orange
Flashing Fast
Battery rejuvenation
Orange
Flashing Slow
Soft start charging
Orange
ON
Bulk charging or absorption charging
Full/Float and Fault LED
Green
ON
Battery is fully charged and is in Float/Maintenance mode
Green
Flashing
Red
ON
Short circuit or reverse polarity
Red
ON
Soft start charging timed out if Orange Charging LED is also flashing
Red
ON
Bulk charging timed out if Orange Charging LED is also ON
Red
Flashing
Battery analysis has failed
Battery voltage select switch was switched during charging mode or incorrect
battery voltage selected
Note: When the unit is in ultra low power consumption mode (ECO Mode), this will be indicated by the Power
LED flashing RED. The unit will automatically go into this mode if no battery is detected or connected.
7 • Owner’s manual - Model. CC6121.2
CHARGING CURVE
8 • Owner’s manual - Model. CC6121.2
ONLINE RESOURCES
Visit http://www.centurybatteries.com.au/battery-charging or
http://www.centurybatteries.co.nz/battery-charging for further information on battery
charging and for advice on using the Century’s CC6121.2 battery charger and maintainer.
TROUBLE SHOOTING
Problem
Indication
Possible Causes
Suggested Solution
Charger does not work?
No Indicator
lights on
- No AC power
- Check AC connections and make
sure the AC Power Point is switched
ON.
- Try a different AC Power Point which
you know is working.
Charger has no DC
output?
Red Power LED
is ON but the
Charging LED
is OFF
- Incorrect battery
voltage selection
- Battery is deeply
discharged
- Output is short
circuited
- Reverse polarity
protection
- Loose / bad
connection to the
battery
- Check the battery voltage selection
switch is set to the correct voltage.
For 6V batteries, the battery voltage
must be over 3V and for 12V batteries
the battery voltage must be over 8V
for the charger to start.
- Check DC connection between
charger and battery and make
sure they are not short circuited.
(Touching each other)
- Check that the crocodile clips have
not fallen off or come loose.
- Check that the crocodile clips/
ring terminals are connected to the
correct polarity.
Note: The charger output is only
present when connected to a battery.
Fault Red LED
is ON
No charging current?
Fault Red LED is
ON and Orange
Charging LED is
ON or Flashing
- Battery is severely
sulphated
- Battery has a
damaged cell
- Overheat protection
mode
- Check the battery condition, age
etc.
- Battery may need replacement.
- Move battery & charger to a cooler
environment.
The full / float light
won’t come on.
Fault Red LED is
ON and Orange
Charging LED is
ON or Flashing
- Battery Ah capacity
too large for the
battery charger and it
has time out
- Battery is defective
- Battery is severely
sulphated
- Check the charger specifications
match the battery capacity. Eg. make
sure battery capacity is not too big
for the charger.
- Battery may need replacement.
or
Full Green LED is
Flashing
Refer to LED Status Indicator Table on Page #7 for further information regarding the Fault LED.
9 • Owner’s manual - Model. CC6121.2
5 YEAR PRODUCT WARRANTY
Century Yuasa Batteries Pty Ltd (ABN 66 009 685 232) of 37-65 Cobalt Street, Carole Park,
4300, QLD, Australia and Century Yuasa Batteries (NZ) Ltd (NZBN 9429039377319) of 259
Church Street, Onehunga, Auckland, 1643, New Zealand warrant to the Customer that this
product is substantially free from defects in materials and workmanship under normal use
for a period of Five Years from the Date of Purchase. Please ensure you keep a copy of your
purchase receipt on file as this will be required to validate your warranty.
Obtaining Warranty Service:
Within the warranty period, the Customer must contact the authorised supplier / retailer
where the product was purchased or alternatively you can contact Century Yuasa Batteries
through one of the following methods:
Phone - Australia: 1300 362 287
Phone - New Zealand: 0800 93 93 93
Website: www.centurybatteries.com.au / www.centurybatteries.co.nz
If Century Yuasa Batteries concludes that while under normal use, a product failure or
malfunction occurred during the warranty period and was caused by a defect in material
or workmanship (see Exclusions), the Customer will be asked to ship to the original point of
purchase. The product must be packaged appropriately for safe shipment. To prove that the
product is under warranty, the customer should enclose a copy of their receipt for proof of
purchase. It is recommended that returned products be sent by registered mail as Century
Yuasa Batteries accepts no responsibility / liability for goods lost or damaged in transit.
Exclusions:
If upon receiving a product for repair and if testing and examining the product has disclosed
that the alleged defect or malfunction in the product does not exist or was caused by the
Customer or any third persons misuse, neglect, physical abuse, water damage, unauthorised
attempts to open, exposure to extremely high temperatures, tampered with or repaired by
an unauthorised persons, this will not be covered under this warranty. Also charges may apply to any product returned which has no fault found or if the warranty has expired or been
void.
This Warranty is also void if:
1. The warranty period has expired.
2. The product has been tampered with or repaired by an unauthorised person.
3. If used on a generator without using a surge protector.
Our goods come with guarantees that cannot be excluded under the Australian Consumer
Law. You are entitled to a replacement or refund for a major failure and compensation for
any other reasonably foreseeable loss or damage. You are also entitled to have the goods
repaired or replaced if the goods fail to be of acceptable quality and the failure does not
amount to a major failure. For New Zealand customers, this warranty is in addition to statutory rights observed under New Zealand legislation.
10 • Owner’s manual - Model. CC6121.2
Century Yuasa Batteries (NZ) Ltd
259 Church Street, Onehunga,
Auckland, 1643, New Zealand
T: 0800 93 93 93
www.centurybatteries.co.nz
CB113-2417
Century Yuasa Batteries Pty Ltd
37-65 Cobalt Street,
Carole Park, QLD, 4300
T: 1300 362 287
www.centurybatteries.com.au
SAA Approval No. GMA-TBA
CC6121.2 Owner’s Manual: Rev 1.0 - 10/17 - Specifications subject to change without notice.
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