BCDC Range Redarc Brochure

User Manual: BCDC Range product-flyers | REDARC Electronics

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REDARC
In-vehicle
Dual Battery
Chargers
Built tough for
Australian conditions

®

REDARC’s range of In-vehicle Dual Battery Chargers are
designed, built and tested in Australia for our unique
conditions to make sure they won’t let you down.
With features like fully sealed construction and fan-free
cooling - water, dust and vibration are no match for the
In-vehicle Dual Battery Charger, you can be assured they
can handle the roughest tracks in outback Australia and the
deepest water crossings at Cape York.
REDARC’s knowledge of Australian conditions is engineered
into every unit. Models in the BCDC and LFP In-vehicle
Dual Battery Charger range operate up to a market-leading
80°C meaning they are going to work in even the most
extreme heat of the Simpson Desert.
A higher operating temperature and compact in size also
allows for flexible installation options, from the engine bay
to inside a van or camper trailer.

Look at all the benefits…
■■ Multi-stage charging saves you money

by maximising battery life
■■ Increase run time of loads like fridges and lights
■■ Allows for flexible installation in 12 or 24 volt vehicles
■■ Overcomes voltage drop caused by long cable runs

MADE IN AUSTRALIA

The BCDC and LFP In-vehicle Dual Battery Charger range
The REDARC BCDC & LFP ranges feature a wide 9-32 volt input range, allowing an auxiliary battery to
be charged from either a 12 or 24 volt vehicle electrical system. All models incorporate dual battery
isolation as well as fault recognition that includes protection against voltage spikes, overheating and
reverse polarity connection, to ensure complete protection of all your batteries.

12 volt auxiliary battery chargers
There are four different output current options to choose from - 6, 20, 25 or 40 amp - to charge
lead acid auxiliary batteries while driving. The 25 and 40 amp models also feature a fully
integrated MPPT solar regulator, extracting the maximum amount of power from solar panels
to charge an auxiliary battery, even during low light conditions.
WITH MPPT

SOLAR

REGULATOR

BCDC1206

BCDC1220, BCDC1220-IGN

BCDC1225, BCDC1225-LV

24 volt auxiliary battery chargers
To meet the demands of 24 volt auxiliary battery charging, a 24 volt, 20 amp charger is available.
It also features a fully integrated MPPT solar regulator.
The BCDC2420 is ideally suited for charging 24 volt battery banks used for powering electric
hydraulic pumps, tailgate lifters, spreader decks, ramps and sleeper cab air-conditioning systems.
The applications are endless.
WITH MPPT

SOLAR

REGULATOR

BCDC2420

12 volt auxiliary lithium iron phosphate chargers
The lithium iron phosphate (LFP) range has been developed specifically for LiFePO4 12 volt auxiliary
batteries and have a unique, two stage charging profile.
Lithium batteries require a specific charging condition in order to operate correctly, the battery
itself must have an in-built cell management system. REDARC have designed a charging profile
to complement these in-built systems. There is the option of 25 or 40 amp charging output, to
suit the battery size, required charge rate and application.
The LFP chargers also feature a fully integrated MPPT solar regulator.
WITH MPPT

WITH MPPT

SOLAR

SOLAR

REGULATOR

LFP1225, LFP1225-LV

REGULATOR

LFP1240, LFP1240-LV

WITH MPPT

SOLAR

REGULATOR

BCDC1240, BCDC1240-LV

With more and more electrical devices being used when travelling around Australia,
along with more complex vehicle electrical systems, having the right battery charging solution
has never been more important.
The REDARC range of BCDC and LFP In-vehicle Dual Battery Chargers ensure optimum
performance of electrical equipment such as fridges, lights, CPAP machines and even
hydraulic pumps when they’re powered from a dual battery setup.

Works best with...
REDARC has a comprehensive range of
accessories including fuse kits, relays,
cables, connectors and mounting
hardware to complete your installation.

By employing a unique, multi-stage charging algorithm, BCDC and LFP In-vehicle Dual Battery
Chargers have been designed to charge any commonly-used automotive auxiliary battery to
100% while you’re on the move and from solar (if available) when you’ve stopped.

Unique
charging profile
Most vehicle alternators are not designed to
fully charge an auxiliary battery, an insufficient
charge rate will, at best, shorten the life and
performance of the auxiliary battery but may
result in the battery being flat when least
expected.

set point. The LFP charger will then move to
constant voltage stage, this stage keeps the
battery at 100% charge.
When a load is applied to the battery and the
battery voltage drops, the LFP charger will
move back into constant current stage.

Whether you need an auxiliary battery for
leisure or business, you need an auxiliary
battery charger you can really rely on, the
REDARC BCDC or LFP in-vehicle battery
charger will ensure your auxiliary battery
will achieve and maintain an optimal charge
regardless of its type or size.

The advanced electronics in the BCDC and
LFP in-vehicle chargers constantly monitors
the vehicle battery input charge to ensure
that your auxiliary battery always receives
the ideal voltage and current for maximum
battery life and performance. Additionally a
highly advanced battery isolator constantly
monitors the vehicle battery input charge
level, protecting your start battery from
excessive discharge.

The charging algorithm has also been
independently verified and tested to ensure
battery life is maximised.

If it’s worth having an auxiliary battery, it’s worth
protecting it with a REDARC In-vehicle Battery
Charger

Charging algorithm

ECU-controlled variable
voltage alternators

The BCDC In-vehicle Battery Charger range
features a three stage charging algorithm.
When the vehicle has started charging the main
battery and it reaches the required voltage level
the BCDC charger will commence charging
the auxiliary battery in boost, the boost stage
maintains a constant current until the battery
reaches its predetermined ‘absorption’ voltage.
The BCDC charger will then remain in the
absorption stage holding its set voltage until the
battery is 100% charged.
The BCDC charger then switches to the ‘float’
stage where it retains the 100% charge until a
load on the auxiliary battery causes the battery
voltage to drop below a predetermined voltage
where it then re-enters the boost stage.
The LFP In-vehicle Battery Chargers
feature a two stage charging algorithm.
When the LFP commences charging the
auxiliary battery it will charge in a constant
current stage, this stage maintains a constant
current until the battery voltage reaches its

Relay kit - RK1260

Why do I need the BCDC1220-IGN,
BCDC1225/40-LV or LFP1225/40-LV
A number of late model vehicles on the market
have ECU-controlled variable voltage alternators
to achieve better fuel economy and increased
performance.
These systems vary the voltage from the
alternator based on driving conditions. When
the alternator voltage is low, the system voltage
can drop below 12.7 volts turning the standard
BCDC, LFP or isolator off.
In these instances we recommend using our
BCDC‑IGN or BCDC/LFP-LV.
The BCDC1220-IGN and BCDC/LFP1225/40-LV
operate on an ignition input, switching the units
on and off with the vehicle ignition. They feature
lower voltage settings so they can continue
to operate with a low input voltage from the
alternator.

Fuse kits - FK40, FK60 and FK100

Gauge value packs

If visual monitoring of a 12 volt dual battery
setup is required, REDARC have a range of
BCDC In-vehicle Dual Battery Chargers, each
packaged with a G52‑VVA dual voltage gauge.
Value Pack

Contains

BCDC1220-GK

BCDC1220
and G52-VVA

BCDC1220I-GK

BCDC1220-IGN
and G52-VVA

BCDC1225-GK

BCDC1225
and G52-VVA

BCDC1225L-GK

BCDC1225-LV
and G52-VVA

BCDC1240-GK

BCDC1240
and G52-VVA

BCDC1240L-GK

BCDC 1240-LV
and G52-VVA

The BCDC/LFP1225/40-LV models also utilise
the blue input wire to select a solar input.

The extensive range of BCDC and LFP In-vehicle Dual Battery Chargers are designed and
manufactured in Australia for Australian conditions. Regardless of which charger you choose,
you’ll be assured of the high quality and reliability that comes with every REDARC product.

®

BCDC1206 typical setup

BCDC1220 typical setup
Blue wire goes to
vehicle ignition for
all IGN models or
those with 24V input.

Note: Power wires must be
at least 6mm² and must be
crimped using an appropriate
crimp tool.

Ignition
switch

All ground points must be
connected to chassis earth.

Input
fuse

load

Anderson Connects to red wire
for non-IGN models.
plug
FK40
fuse

FK40
fuse

Output
fuse

start
battery

battery
config
wire

start
battery

auxiliary
battery

Solar option

solar
panels

BCDC1240 typical setup

For automatic switching
between vehicle and solar
energy charging sources
use the REDARC RK1260
relay kit.

All ground points must be connected
to chassis earth.

FK40
fuse

24V system option

Solar option

Note: Power wires must be
at least 6mm² and must be crimped
using an appropriate crimp tool.

24V system requires
a 24V relay.

to
vehicle
ignition
battery
config
wire

FK40
fuse

+

load

Note: Power wires must be
at least 8mm² and must be crimped
using an appropriate crimp tool.
All ground points must be connected
to chassis earth.
24V system requires
a 24V relay.

to
vehicle
ignition
FK60
fuse

24V system option

auxiliary
battery

battery
config
wire

FK60
fuse

+

load

–

Load
fuse

optional
LED

start
battery

BCDC2420 typical setup

solar
panels

solar
panels

For automatic switching
between vehicle and solar
energy charging sources
use the REDARC RK1260
relay kit

–

Load
fuse

optional
LED

start
battery

Solar option

auxiliary
battery

TRAILER/
CARAVAN

TOWING
VEHICLE

BCDC1225 typical setup

load
fuse

auxiliary
battery

LFP typical setup

For automatic switching
between vehicle and solar
energy charging sources use
the REDARC RK1260 relay kit
load

Note: Power wires must be
at least 6mm² and must be
crimped using an appropriate
crimp tool.
All ground points must be
connected to chassis earth.

solar
panels

For automatic switching
between vehicle and solar
energy charging sources
use the REDARC
RK1260 relay kit

FK60
fuse

battery
config
wire

* Recommended
input fuses:
LFP1225 - FK40
LFP1240 - FK60

load
fuse

vehicle
ignition

auxiliary
battery

BCDC1206

BCDC1220
BCDC1220-IGN

BCDC1225
BCDC1225-LV

9V-32V
N/A
14.5V
6A
<100mA
<1mA
10A
7.5A
72W
No
N/A
N/A
-20°C to +70°C
80 x 60 x 20mm
200g

9V-32V
N/A
14.5V/14.9V/15.3V
20A
<100mA
<5mA
40A
40A
300W
No
N/A
N/A

9V-32V
9V-16V
14.5V/14.9V/15.3V
25A
<100mA
<8mA
40A
40A
375W
Yes
17.5V
9V-28V

100 x 120 x 37mm
450g

680g

start
battery

Voltage range
Voltage range (LV models)
Maximum charging voltage
Output current
No load current
Standby current
Recommended input fuse*
Recommended output fuse*
Output power
MPPT solar regulator
Solar switch on voltage**
Solar range
Ambient temperature
Dimensions
Weight

FK60
fuse

Low
voltage
disconnect

to
vehicle
ignition

24V system requires
a 24V relay.
24V option

load

+ –

auxiliary
battery

Fuse*

not used
(leave
disconnected)

start
battery

BCDC1240
BCDC1240-LV

optional
LED

BCDC2420

9V-32V
9V-32V
9V-16V
N/A
14.5V/14.9V/15.3V 29.0V/29.8V/30.6V
40A
20A
<100mA
<100mA
<8mA
<8mA
60A
60A
60A
40A
600W
600W
Yes
Yes
17.5V
17.5V
9V-28V
9V-28V
-20°C to +80°C
150 x 120 x 37mm
680g
680g

Fuse*

Load
fuse

all ground
points must be
connected to
chassis earth or
start battery
negative

auxiliary
battery

LFP1225
LFP1225-LV

LFP1240
LFP1240-LV

9V-32V
9V-16V
14.6V
25A
<100mA
<8mA
40A
40A
375W
Yes
17.5V
9V-28V

9V-32V
9V-16V
14.6V
40A
<100mA
<8mA
60A
60A
600W
Yes
17.5V
9V-28V

680g

680g

* Fuses not supplied. **Requires unregulated solar panel.

Visit redarc.com.au for more information.
REDARC In-vehicle Dual Battery Chargers
are available at your nearest auto electrician
or 4WD specialty store.
REDARC Electronics
power@ redarc.com.au

Australia
Phone
Fax

23 Brodie Road (North)
Lonsdale, South Australia
Australia 5160

International
Phone
+61 8 8322 4848
Fax
+61 8 8387 2889

ABN 77 136 785 092

08 8322 4848
08 8387 2889

© 2015 REDARC Electronics Pty Ltd. All rights reserved.

Want to know more?
Scan this QR code with
your smartphone to go to
the Redarc website

®

www.redarc.com.au
4685-151015



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