OzCharge OC121.5 User manual

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OWNER’S MANUAL
Model: OC121.5
AUStRALiAN & NEW ZEALANd StANdARd AS/NZS 60335.2.29 APPROVEd

1 • Oz Charge manual www.ozcharge.com.au
Congratulations on purchasing the Oz Charge OC121.5 fully automatic switched mode 12 Volt
/ 1.5 Amp 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
• The charger is designed to charge 12V lead-acid batteries from 5Ah to 35Ah.
However the charger can also be used to maintain batteries up to 120Ah.
• Always refer to the battery manufacturers specications and recommendations if
you’re unsure of your battery charging requirements. E.g. Such as removing or not
removing cell caps whilst charging.
• Explosive gases may escape from the battery during charging so please ensure the
battery is charged in a well ventilated area.
• This charger is designed for indoor use only and should never be exposed to water,
rain, snow, liquids etc.
• 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.
• If battery acid contacts your skin or clothing, wash immediately with soap and water.
If acid enters your eye, immediately ush the eye with running cold water for at least
10 minutes and seek medical attention. Someone should always be within range of
your voice.
• 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 or piece of jewellery 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 ame or create sparks near a battery or charger during
charging operation as this may cause an explosion and explosive gases.
• Do not disassemble the charger. Take it to a qualied and authorised person for
repair.
• If using a generator, you must ensure you use a surge protector to protect the
charger from voltage spikes.
• The charger must not be used or played with by inrm persons or children. Also
keep it away from any pets.
MAIN FEATURES
• 100% automatic smart battery charger & maintainer with reconditioning.
• The battery charger is easy to use and requires no technical experience.
• Fully microprocessor controlled with safety timers at every stage.
• Battery condition analysis.
• Senses whether battery is still connected in vehicle.
• Patented battery rejuvenation (reconditioning).
• Battery voltage retention analysis.

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2 • Oz Charge manual www.ozcharge.com.au
• Pulse charge for long term maintenance.
• Ultra lower power consumption (ECO Mode).
• Multi Stage:
1 - Qualication - Battery condition check
2 - Battery rejuvenation (recondition mode)
3 - Soft start charging
4 - Bulk charging
5 - Absorption charging
6 - Battery analysis
7 - Float mode
8 - Long term maintenance pulse charge
• 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 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.
• Can be left on 24/7 to ensure your battery is always maintained and fully
charged: The battery charger can be left unattended and 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.
• Short circuit and reverse polarity protection.
• Heavy-duty and corrosion-resistant output connectors.
• Crocodile clips and ring terminals: It comes with a quick connect y lead and 2
dierent kinds of connectors, crocodile clips and ring terminals. The ring terminals
are perfect for permanent connection to your battery. You can connect the lead to
the battery and tuck the lead away while you are using your vehicle and when you
get back to your garage simply plug the lead back into the charger.
• Smart Hook: The battery charger contains
a built in foldable mounting hook at the rear
of the unit. This can be used to hang the
charger on a wall or motorcycle handlebars.
The mounting hook conveniently folds back
into the unit when not in use.

3 • Oz Charge manual www.ozcharge.com.au
TEMPERATURE & SAFETY PROTECTION:
• INTERNAL OVERHEAT PROTECTION: The charger has a built-in overheat and
an overload electronic circuit. This protects the charger from being damage if
overheated or overloaded and will automatically decrease the charging current.
Once the units 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’s highly likely that you’re attempting to charge a severely
discharged or heavily sulphated battery. If any of the stages time out, the charger
will immediately stop charging in order to protect the battery. This will be indicated
with the fault LED ashing slowly.
• 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 o 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 ring terminals
accidently touch each other while the charger is turned on.
• ECO MODE: This Oz Charge 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 Green power LED ashes to indicate ECO mode.
BATTERY TYPES & CAPACITY:
• Suits 12V conventional lead acid batteries (VRLA) AGM, Gel & Wet. It can also be used
as a maintenance charger only for Calcium batteries if required.
• The Ah (Ampere-hour) capacities shown below are to be used as a general guide only.
Some batteries may be able to handle a higher charge current. Refer to the battery
manufacturers specications and recommendations for your charging requirements.
Battery Capacity: Charging 5 - 35Ah
Battery Capacity: Maintaining 5 - 120 Ah

4 • Oz Charge manual www.ozcharge.com.au
ELECTRICAL PARTS & ACCESSORIES:
AC Power Cord: 1.8m with SAA 2 Pin AU Plug
DC Output Lead: 1.2m with quick connect
Charging Leads: Quick connect 60cm Crocodile Clip Harness
Quick connect 60cm Ring Terminal Harness
TECHNICAL SPECIFICATIONS:
Model Number OC121.5
Output 1500mA @ 12V
Input Voltage 100-240Vac / 0.4A(24W)
Input Frequency 50/60Hz
Charge Voltage 14.4V
Float Voltage 13.6V
Start Voltage 3V
Operating Temperature -15 to 50° C
Storage Temperature -25 to 85°C
Operating Humidity 90% RH Max.
Size (L*W*H) 140mm x 65mm x 35mm
Weight 0.45kg
Approvals CE, UL/cUL, AS/NZS, EMC
CHARGING INSTRUCTIONS:
STEP 1 - Pre charge check & electrolyte level check
• Check the Battery Electrolyte levels (Not required on sealed & maintenance free
batteries).
If necessary, remove the vent caps and add distilled water so the levels are halfway
between the upper and lower ll lines.
• Check the battery voltage, type and Ah capacity to ensure the charger is compatible.
• Ensure the battery is in a well ventilated area and the charger should be as far away
from the battery as the cables permit.

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RED
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( NEGATIVELY EARTHED )
RED
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( POSITIVELY EARTHED )
5 • Oz Charge manual www.ozcharge.com.au
STEP 2 - Connecting the battery charger to your battery
• If the Battery is out of the vehicle:
Connect the Red (+) Crocodile clip or ring terminal to the positive (+) battery terminal.
Connect the Black (-) Crocodile clip or ring terminal to the negative (-) battery terminal.
• 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 ring terminal lead to the positive (+) battery terminal and then connect the Black
(-) Crocodile clip or ring terminal lead to the vehicle’s chassis. DO NOT connect the
Black (-) lead to the carburettor or fuel lines.
If Positively Earthed – FIRST Connect the Black (-) Crocodile clip or ring terminal
lead to the negative (-) battery terminal and then connect the Red (+) Crocodile clip
or ring terminal lead to the vehicle’s chassis. DO NOT connect the Red (+) lead to the
carburettor or fuel lines.
STEP 3 - Connect the battery charger to Mains Power (240Vac)
• The charger will automatically start when AC power is connected and switched on.
Note: If the Fault Indicator LED illuminates Red, please check your connections as it’s likely
that the Positive and Negative Leads are reversed. Refer to Trouble Shooting Page for
further information.

6 • Oz Charge manual www.ozcharge.com.au
THE CHARGING PROCESS:
1) Qualication - Battery Condition Check
When the charger is rst switched on it checks the battery condition to determine
whether the battery needs reconditioning. During this qualication 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. It’s also senses whether the
battery is still connected in the vehicle.
2) Enhanced Battery Rejuvenation - Blue Rejuvenation LED Flashing
If the initial qualication 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.
Note: If the unit senses that battery is still connected in the vehicle, the equalisation
voltage will be 16V maximum. If it senses that the battery isn’t connected then
the equalising voltage will be 20V maximum. For severely sulphated batteries, we
recommend that the battery is disconnected from the vehicle.
If the battery voltage doesn’t reach 9V within 24 hours, the Rejuvenation process will
time out.
3) Soft Start Charging - Blue Charging LED Flashing
Gently charges the battery using a reduced charge output until the battery voltages
reaches 11V. If the battery voltage doesn’t reach 11V within 6 hours, the safety timer
protection will stop the unit from charging and the Red Fault LED will start ashing.
4) Bulk Charging - Blue Charging LED ON
Uses the maximum charge output (1.5A) until the battery voltage reaches 14.4V.
If the battery voltage doesn’t reach 14.4V within 20 hours, the safety timer protection
will stop the unit from charging and the Red Fault LED will start ashing.
5) Absorption Charging - Blue 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 - Blue 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. This is indicated by both the Yellow charging LED
and Green full LED being ON.
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 13.6V.
8) Long Term Maintenance - Full / Float Green LED ON
During long term maintenance / oat mode, the unit will apply a special pulse charge
to ensure the battery is kept in optimal condition.

7 • Oz Charge manual www.ozcharge.com.au
STEP 4 - Disconnecting the Battery charger from Battery
• If the Battery is out of the vehicle:
(1) Switch OFF and Remove the AC Power Socket 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 AC Power Socket 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 / Fault LED – Green / Red
Green ON AC power is connected
Green Flash ECO mode and no battery connected
Red ON Short circuit / reverse polarity connection
Red Flash (Slow) Automatic Rejuvenation or charge cycle has timed out
Red Flash (Fast) Over temperature protection mode
Charge / Reconditioning LED – Blue / Yellow
Blue Flash Rejuvenation (Reconditioning) or Soft start charging
Blue ON Bulk charge or Absorption charging
Yellow ON Battery is at (less than 3V) or Battery failed analysis test
Full LED -Green
Green ON Fully charged - Float / Maintenance mode
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8 • Oz Charge manual www.ozcharge.com.au
CHARGING CURVE

9 • Oz Charge manual www.ozcharge.com.au
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 dierent AC Power Point
which you know is working.
Charger has no DC
output?
Fault Red LED
is ON
or
Green power
LED ON or
ashing
- Output is short
circuited
- Reverse polarity
protection
- Loose / bad
connection to the
battery
- 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 o 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.
No charging current? Fault Red LED
is Flashing
- Battery is severely
sulphated
- Battery has a
damaged cell
- Over temperature
protection mode
- Check the battery condition,
age etc.
- Battery may need replacement.
- Move battery & charger to a
cooler environment.
The full / oat light
won’t come on.
Fault Red LED
is Flashing
- Battery Ah
capacity too large
for the battery
charger and it has
timed out
- Battery is
defective
- Battery is severely
sulphated
- Check the charger
specications match the battery
capacity. Eg. make sure battery
capacity is not too big for the
charger.
- Battery may need replacement.
REPLACEMENT PARTS
For the full range of replacement parts and accessories, please visit our website:
www.ozcharge.com.au. / www.ozcharge.co.nz

10 • Oz Charge manual www.ozcharge.com.au
2 YEAR PRODUCT WARRANTY
Zylux Distribution Pty. Ltd. (ABN 66 101 378 009) of 166 Christmas Street, Faireld, Victoria,
3078, Australia warrants to the Customer that this product is substantially free from defects
in materials and workmanship under normal use for a period of Two Years from the Date
of Purchase. Please ensure you keep a copy of your purchase receipt on le 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 the Oz Charge service
centre through one of the following methods:
Service help phone: Within Australia [phone]
Outside of Australia: [phone]
Website: www.ozcharge.com.au / www.ozcharge.co.nz
If the Authorised Supplier and / or Oz Charge service centre 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 nearest service point for repair or replacement, at our discretion. 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 Zylux Distribution Pty.
Ltd. (Oz Charge) 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 seal is broken or altered.
2. The warranty period has expired.
3. The product has been tampered with or repaired by an unauthorised person.
4. 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.

OC121.5 Owner’s Manual: Rev 1.1 - 11/14 - Specications subject to change without notice.
SAA Approval No. GMA-102826-EA-001