BCDC Range (Current With BCDC1225D) 5051 Brochure 161031 LR

User Manual: BCDC Range (Current with BCDC1225D) 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. All models 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 In-vehicle Dual Battery Charger range
The REDARC BCDC range features 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 output current options to choose from - 6, 20, 25 or 40 amps - 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.
A relay kit is required to allow you to automatically switch between charging your auxiliary battery from the vehicle or
solar panel when using either a BCDC1225 or BCDC1240.
WITH MPPT

WITH MPPT

SOLAR

SOLAR

REGULATOR

BCDC1206

BCDC1220, BCDC1220-IGN

BCDC1225, BCDC1225-LV

REGULATOR

BCDC1240, BCDC1240-LV

12 volt dual input auxiliary battery charger
This next-generation, 25 amp model with a fully integrated MPPT solar regulator is able to charge common lead acid auxiliary
batteries as well as lithium iron phosphate batteries.
The BCDC1225D dual input battery charger, charges from solar and DC inputs simultaneously (no external relay is required as
with standard BCDCs). With built in ‘Green Power Priority’ it will select solar first, meaning less load on the alternator.
The unit will also suit standard and variable voltage/smart alternators.
WITH MPPT

SOLAR

REGULATOR

BCDC1225D

24 volt auxiliary battery charger
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

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 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 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).

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.
Whether you need an auxiliary battery for
leisure or business, you need an auxiliary
battery charger you can really rely on, the
REDARC BCDC in-vehicle battery charger will
ensure your auxiliary battery will achieve and
maintain an optimal charge regardless of its
type or size.
The charging algorithm has also been
independently verified and tested to ensure
battery life is maximised.

Charging algorithm
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 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 lithium charging profile (available
in the BCDC1225D) features a two stage
charging algorithm.

When the lithium profile 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
set point. The lithium profile will then move to
constant voltage stage which keeps the battery
at 100% charge.
When a load is applied to the battery and the
battery voltage drops, the lithium profile will
move back into constant current stage.
The advanced electronics in the BCDC
In‑vehicle Battery Chargers constantly
monitor 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.
If it’s worth having an auxiliary battery, it’s
worth protecting it with a REDARC In-vehicle
Battery Charger.

ECU-controlled variable
voltage alternators
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 or isolator off.
In these instances we recommend using our
BCDC‑IGN or BCDC-LV.
The next-generation BCDC1225D can be used
for 12 or 24 volt vehicle systems with standard
or variable voltage/smart alternators, ensuring
the unit will deliver the best charge to your
auxiliary battery.

The extensive range of BCDC 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.

Relay kit - RK1260
(not required for BCDC1225D)

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

®

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

Loads

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

FK40
fuse

Output
fuse

Start
battery

Battery
config
wire

Start
battery

Auxiliary
battery

BCDC1240 typical setup
Note: Power wires must be
at least 6mm² and must be crimped
using an appropriate crimp tool.

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

Solar option

Solar
panels

FK40
fuse

24V system option

Solar option

All ground points must be connected
to chassis earth.
To
vehicle
ignition

24V system requires
a 24V relay.

Battery
config
wire

FK40
fuse

Optional
LED

Start
battery

Solar
panels

Load
fuse

Start
battery

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

24V system requires
a 24V relay.

Battery
config
wire

FK60
fuse

Load
fuse

Optional
LED

Start
battery

Loads

Auxiliary
battery

BCDC2420 typical setup
All ground points must be
connected to chassis earth.

Solar option

Solar
panels

Loads

FK40 Blue wire- leave
fuse disconnected for
standard trigger
settings

24V system option

FK60
fuse

24V system option

Charging
profile select

Solar
panels

All ground points must be connected
to chassis earth.
To
vehicle
ignition

Auxiliary
battery

Optional
LED

Solar option

Note: Power wires must be
at least 8mm² and must be crimped
using an appropriate crimp tool.

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

Loads

BCDC1225D dual input typical setup
12V
unregulated
solar panel
array

Auxiliary
battery

TRAILER/
CARAVAN

TOWING
VEHICLE

BCDC1225 typical setup

Load
fuse

Blue wire
- connect to
vehicle ignition for
low voltage trigger
settings

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

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

All ground points must be
connected to chassis earth.
24V system requires
a 24V relay.

FK40
fuse

Load
fuse

24V system option

Start
battery

Auxiliary
battery

BCDC1206

BCDC1220
BCDC1220-IGN

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

9V-32V
N/A
N/A
N/A
14.5V/14.9V/15.3V
20A
<100mA
<5mA
40A
40A
300W
No
100 x 120 x 37mm
450g

FK60
fuse

BCDC1225
BCDC1225-LV

BCDC1240
BCDC1240-LV

9V-32V
9V-32V
9V-16V
9V-16V
9V-28V
9V-28V
17.5V
17.5V
14.5V/14.9V/15.3V
14.5V/14.9V/15.3V
25A
40A
<100mA
<100mA
<8mA
<8mA
40A
60A
40A
60A
375W
600W
Yes
Yes
-20°C to +80°C
150 x 120 x 37mm
680g
680g

Battery
config
wire

FK60
fuse

Load
fuse

Vehicle
ignition

Auxiliary
battery

Auxiliary
battery

BCDC1225D

BCDC2420

9V-32V
N/A
9V-32V
9.0V
14.6V/15.0V/15.3V/14.6V
25A
<100mA
<8mA
40A
40A
375W
Yes
0°C to +80°C
165 x 120 x 37mm
850g

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

Voltages specified are ±100mV. ‡Fuses not supplied.

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

© 2016 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
5051-161031



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