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Summary of Contents for Redarc BCDC1212S
- Page 1 BCDC1212S 12 A DC-DC / 40 A SOLAR 3-STAGE IN-CABIN 12 V BATTERY CHARGER...
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Page 2: Table Of Contents
���������������������������������������������������������������� Maintenance ������������������������������������������������������������������������� TROUBLESHOOTING ��������������������������������������������������������� Error Codes���������������������������������������������������������������������������� Turn On/Off Thresholds ���������������������������������������������������������� FREQUENTLY ASKED QUESTIONS ��������������������������������� SPECIFICATIONS ��������������������������������������������������������������� WARRANTY ������������������������������������������������������������������������ For the latest version of this document and any available translations, visit the product page on the REDARC website at www�redarcelectronics�com... -
Page 3: Warnings And Safety Instructions
CAUTION: Indicates a potentially hazardous 8. The BCDC1212S is not intended to supply power situation which may result in moderate or minor injury to a low voltage electrical system other than to to the operator or to bystanders�... -
Page 4: Product Overview
PRODUCT OVERVIEW The BCDC1212S Battery Charger is specifically designed for, but not limited to, applications where the input current required to charge a trailer mounted auxiliary battery is drawn through the vehicle's towing harnesses and connectors� The Battery Charger is capable of drawing 40 A from 12 V solar panel/s and limits vehicle input current to 12 A from 12 V vehicle alternators, keeping your auxiliary battery system fully charged�... -
Page 5: Cables And Wires
CABLES AND WIRES The BCDC1212S Battery Charger is equipped with a fly lead wiring harness that must be correctly connected to ensure effective charging of the auxiliary battery� Below is a description of each cable and wire attached to the Unit�... -
Page 6: Profile Leds
Li. Lithium STATUS LEDS SOLAR & VEHICLE LEDS The Charge Status LEDs will be on when the input is available and in use� The BCDC1212S will always choose solar before the vehicle input� CHARGE STAGE LED The Charge Stage LED indicates the Charge Profile Stage� With any profile selected the Charger will output a 3-Stage charging profile with Boost, Absorption and Float Stages�... -
Page 7: Product Function
CAUTION: When using the BCDC1212S to charge a Lithium Iron Phosphate battery, only batteries that feature an inbuilt battery management system featuring under and over voltage protection and cell balancing are suitable�... - Page 8 BATTERY TEST MODE The Battery Charger enters a battery test mode every 100 seconds to check that the input being received from either solar or vehicle battery is still valid and that the auxiliary battery is still correctly connected to the output�...
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Page 9: Basic Setup
2* These fuses must be rated slightly higher than the total current draw of all loads connected to the auxiliary battery and is suitably rated for the wiring used� REDARC recommends the use of MIDI type fuses� 3* Only use the blue (vehicle ignition) cable if the trailer plug isolates (is not powered) when the vehicle is not running� Using the blue cable with a permanently powered trailer plug may cause the start battery to flatten�... -
Page 10: System Planning
Cable and fuse sizes are specified by various codes and standards which depend on the type of vehicle the BCDC1212S is installed into� Selecting the wrong cable or fuse size could result in harm to the installer or user and / or damage to the BCDC1212S or other equipment installed in the system� The installer is responsible for ensuring that the correct cable and fuse sizes are used when installing this Battery Charger�... -
Page 11: Cable Sizing
The heavy gauge cables on BCDC1212S carry peak currents of up to 55 A� To carry this current effectively, it is important to select the wire gauge required when extending this cables depends on the length of cable run required�... -
Page 12: Considerations Prior To Installation
If your trailer plug’s 12 V auxiliary power pin is permanently powered and does not isolate when the vehicle is not running (ignition isolator or relay) the BCDC1212S does not require a blue wire connection� If your trailer plug's 12 V auxiliary power pin is isolated (not powered) when the vehicle is not running, the BCDC1212S required the blue wire to be connected to the red cable�... - Page 13 FIXED OR REMOVABLE Determine if your install requires connections to be permanent or easily disconnected — this influences the connector choice� Soldered butt splice connectors are more suitable for fixed wiring while Anderson™ plugs are more suitable when disconnection is required, such as with portable battery boxes, trailers and portable solar panels�...
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Page 14: Installation - Mounting
55°C (130°F) with good airflow� At higher temperatures the Unit will de-rate output current up to 80°C / 175°F at which point the Unit will turn OFF� IMPORTANT: The BCDC1212S must not be mounted in the engine bay of a vehicle. Moisture ingress and heat build up may damage the Battery Charger. -
Page 15: Mounting Instructions
MOUNTING INSTRUCTIONS MOUNTING HARDWARE Do not use adhesives or adhesive tape to mount the Battery Charger. When mounting the Battery Charger, any M6 fasteners with washers may be used as long as: They are suitable for the selected mounting surface and; ƒ... -
Page 16: Installation - Wiring
CABLE ASSEMBLY CAUTION: Failure to make a good reliable connection may result in breakdown of the wire insulation and cause a short circuit, or worst case a fire� REDARC recommend this activity be undertaken by an appropriately trained person� The BCDC1212S’s heavy gauge cables require good, low resistance electrical connections that will not degrade over time�... -
Page 17: Lug Assembly
Do not use standard pre-insulated Red/Blue/Yellow crimp connectors for connection of the BCDC1212S’s 8 B&S cables as they are not rated to carry the required current� Strip the end of the cable back enough to ensure the insulation does not enter the barrel of the lug when full inserted�... -
Page 18: Cable Connections
NOTE: Damage to cabling can cause failure of the BCDC and vehicle electrical systems� Ensure cabling is clear of sharp edges or moving parts, and have enough slack to allow for flexing� REDARC recommend using cable ties and conduit or split tubing to manage cabling�... - Page 19 Profile you select does not exceed the manufacturer’s recommended maximum charging voltage� If the Maximum voltage is too high for your battery type, select another Charging Profile� When using the BCDC1212S to charge a Lithium Iron Phosphate battery, only batteries that have an inbuilt ƒ...
- Page 20 Max Charge — If the 12 V auxiliary power supplying the BCDC1212S's red cable is isolated (not powered) when the vehicle is not running, connect the blue wire to the red cable� This will set the BCDC1212S to the low voltage setting and can increase the charging performance (see Table 5)�...
- Page 21 This can provide a Vehicle Input feed that is only on when the ignition is on� Connecting the blue wire to the BCDC1212S's red wire will enable the Battery Charger to charge the auxiliary battery in 'Low Voltage Mode' as demonstrated below�...
- Page 22 NOTE: Most residential solar panels are not suitable for use with BCDC as they have an open circuit voltage that exceeds the 32 V limit of the BCDC1212S input� Use the yellow wire to connect the BCDC1212S to your solar panel using appropriate connector types based on your setup� See "Connecting Multiple Solar Panels"...
- Page 23 CONNECTING MULTIPLE SOLAR PANELS The BCDC1212S can be connected to a solar panel array with a greater wattage than the BCDC's Maximum Output Power Rating (600 W) ensuring that the correct cable size is used� The Battery Charger will automatically limit power going to the Unit if the panels supply more than the maximum wattage needed�...
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Page 24: Maintenance
Only connect the green wire to the orange (charge profile) wire when using a Lithium profile battery, connecting these wires together sets the BCDC1212S to Lithium mode� NOTE: If using an Optional LED, use a standard 12 V LED with an integrated resistor (12 V = 1kΩ... -
Page 25: Troubleshooting
TROUBLESHOOTING There are no LEDs ON at all. This indicates that there is no battery connected to the brown (output) cable AND the red/yellow (vehicle input/solar) cables of the Charger are not connected� Check all wiring to the Charger and battery, particularly the black (ground) cable� Check fuses are intact and properly connected�... -
Page 26: Error Codes
The BCDC is connected to the vehicle but the vehicle LED is OFF. This indicates that the required turn ON conditions for this source have not been met OR the yellow (solar) cable is supplying the full input power requirements of the Charger� With the blue (ignition) wire left unconnected, the voltage at the red (vehicle input) cable must be above 12�9 V for a 12 V installation or above 25�8 V for a 24 V installation�... -
Page 27: Turn On/Off Thresholds
TURN ON/OFF THRESHOLDS Table 7: Turn On/Off Thresholds Input 12 V Vehicle Input 24 V Vehicle Input Solar Input Trigger Settings Standard Standard Voltage Voltage Input Open Turn ON ABOVE 12�9 V 12�0 V 25�8 V 24�0 V 9�0 V Circuit Low voltage Turn OFF BELOW... -
Page 28: Frequently Asked Questions
FREQUENTLY ASKED QUESTIONS The BCDC1212S turns ON at 12.9 V (12 V) and OFF at 12.7 V (11.9 V), but you say it operates down to 9 V, explain? The BCDC1212S will turn OFF for a split second every 100 seconds to measure the unloaded voltage at the battery�... -
Page 29: Specifications
SPECIFICATIONS Specifications are subject to change without notice� Part Number BCDC1212S Continuous Solar Rating 40 A Maximum Current Rating 55 A Continuous Vehicle Rating 12 A Vehicle Input Fuse Rating 23 A / 30 A (Not supplied) Maximum Output Power... - Page 30 FCC DECLARATION This device complies with Part 15 of the FCC Rules� Operation is subject to the following two conditions� (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation�...
- Page 31 23 Brodie Road (North), Lonsdale South Australia 5160, Australia Design and specifications are subject to change without notice | Copyright © REDARC Electronics Pty Ltd� All rights reserved REDARC®, THE POWER OF REDARC®, and BCDC® are trademarks of REDARC Electronics Pty Ltd�...
- Page 32 Tech Support 1300 REDARC Head Office +61 8 8322 4848 New Zealand +64 9 222 1024 UK & Europe +44 (0)20 3930 8109 +1 (704) 247 5150 Canada +1 (604) 260 5512 Mexico +52 (558) 526-2898 redarcelectronics.com INST280-2 EN...
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