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This Arlec battery charger is designed to charge 12 Volt lead-acid batteries.
It is an easy charger to use, the circuit is all electronic and it will charge your flat battery to
get your car, boat or motorcycle going again. The charger is protected internally to cut off the
current in the event of a short circuit, an overload or reversed connection to the battery, and is
double insulated for added safety.
Before using this charger it is essential that you read important safety information
on page 3.
The LED Meter
The Meter is comprised of three Light Emitting Diodes (LEDs) which illuminate to register
Power on, charging and battery charged.
As the battery is charging the red and yellow LEDs will illuminate to indicate that the battery is
being charged. When the green LED is illuminated your battery is in a charged state. The green
LED should be used as a guide only to the charge status of your battery. The output leads are
fitted with coloured clips for easy identification of polarity.
Red for positive (+) and black for negative (-).
1. Before connecting or disconnecting the charger to a battery, ensure that the charger is
switched ‘OFF’ at power point
2. Ideally, disconnect and remove the battery from the vehicle. It is advisable to disconnect the
battery leads to protect the electronic systems within the vehicle.
(Refer also to “Important Notes Section).
3. Remove the battery filler caps and check the level of the liquid in the cells.
If necessary, top up with distilled water and ensure that the liquid is 6mm (1/4”) above the top
of the plates. Do not replace the filler caps until the charging program has been completed.
4. Connect the clips to the battery terminals ensuring they bite firmly and the polarity is correct.
If the red LED does not illuminate when the charger is switched on, check the following
points.
•Ensurethatthepositive(red)clipisconnectedtothepositive(+)batteryterminal.
•Theredorblackclipsmaynotbemakinggoodelectricalcontact.Twisttheclipstoensure
good electrical contact on battery terminals.
•Yourbatterymaybecompletelyatorhavedamagedcells.Careshouldbetakenwhen
attempting to charge a damaged or completely flat battery. Refer to section headed
“Overload”.
5. Plug the battery charger into a regular household power point (240 Volt), and switch power
‘ON’. The red and yellow LEDs will illuminate to indicate that the battery is being charged.
Note: During the charging process the battery will be gassing (bubbling quite freely) and
emitting hydrogen gas. Do not use a naked flame near the battery.
6. When the green LED is illuminated the battery is charged. Switch power ‘OFF’ before
removing the clips from the battery.
Charging Time
1. If the battery is in reasonable condition, it should be sufficiently charged to start a vehicle
when the green LED indicator is illuminated.
2. Charging the battery overnight (12-15 hours) is usually enough to fully charge a flat car
battery, although a vehicle may start after only a short period of charging. Do not charge your
battery for more than 24 hours as this may cause deterioration of the battery cells.
3. Smaller capacity motorcycle batteries may only need 4-6 hours to restore the battery to peak
condition.
If your battery is flat and all three LED’s illuminate when you first switch the charger ‘on’ it is
acceptable to continue charging your battery for several hours. This indicates that the battery
is in a really flat condition. The green ‘charged’ LED should eventually switch ‘off’, when the
BC591 Instructions.indd 2 8/06/10 5:43 PM