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Oz Charge GRUNT Series Workshop Charger Owner’s Manual - V1.0 08/16
OZ CHARGE GRUNT SERIES – WORKSHOP BATTERY CHARGER
USER MANUAL
General
The Oz Charge Workshop Charger was developed for both mobile and stationary use for charging all types of lead
acid batteries. The charger offers three important types of operation for daily use in workshops and when making
service calls:
•
Fully automatic charging of 12V lead acid batteries (Wet cell, GEL, AGM)
•
Fully automatic charging of 24V lead acid batteries (Wet cell, GEL, AGM) (Applies to OC-W122470P unit only)
•
Power supply function for supplying batteries that have been removed from the vehicle
Installation
The Oz Charge Workshop Charger is intended as a portable charger for use in workshops and on service calls.
However, depending on the application and field of use, it may also be practical to mount the charger on the wall in
order to set up a stationary charging station. For this purpose, the device has feet with appropriate openings for
mounting bolts.
Connecting the battery charger to your battery
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.
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
NO
T connect the Black (-) lead to the carburetor or fuel lines.
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 carburetor or fuel lines.
Connecting the battery charger to Mains Power (240Vac)
The charger will automatically start when AC power is connected and switched on. After connection to the mains, one
of the five operating LEDs will start to blink, signaling the current status of operation. Press the Mode key to switch
from one type of operation and battery to another: press and hold the Mode key until the LED next to the desired
position lights up. Then release the Mode key. After a few seconds, the charger will start in the program that has
been selected.
IMPORTANT: Please make sure the correct Battery Type (and/or charger Voltage if you have an OC-W122470P) is selected
to suit your within the first 5 minutes of charging. For Example do not charge a Gel Battery on the Standard Battery Type
setting as this may damage your battery and / or reduce your battery life.
Note
: If the Fault Indicator LED illuminates Red, please check your connections as it’s likely that the Positive and Negative
Leads are reversed or if you have an OC-122470P unit and the orange and red error LED flash alternatively you have
selected the incorrect Charge Voltage.
The program runs fully automatically. As soon as the battery is fully charged, the LED display will switch from orange
to green and the charging voltage will be reduced to maintenance charging. The battery can now be disconnected or
remain connected to the charger until it is required. During this time, the charger ensures that the battery remains
fully charged, irrespective of how long it stays connected to the charger.
