REDARC BC-DC1250 50Amp | In Vehicle & Solar Battery Charger

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Sale price$665 Regular price$777.56


This DC charger package includes a DC wiring Loom valued at $ 89.00
See more information at end of listing or click HERE

REDARC's BCDC Core 40A DC to DC In-Cabin Battery Charger is the next evolution of the legendary BCDC platform that has been powering off-grid adventures for over 10 years. 

The BCDC Core is the perfect DC to DC charging solution for in-cabin, canopy, or battery box setups where dust and weatherproofing isn’t required. Each BCDC Core features REDARC’s tried and tested dual input DC charging tech plus an MPPT solar regulator and Green Power Priority all in the familiar and compact BCDC form factor. These features allow the BCDC Core to efficiently charge from both the alternator and solar simultaneously, ensuring maximum charge capacity no matter the situation.

Looking for a DC-DC Charger for an under bonnet installation? The REDARC BCDC Classic range in 25amp, 40amp and 50amp models could be what you're looking for.

50Amp In Vehicle Battery Charger

The REDARC BCDC1250D is a 12V 50A In-vehicle DC to DC battery charger. It features REDARC's award-winning In-vehicle charging technology, and can charge from Solar and DC inputs simultaneously.


The REDARC BCDC1250D In-vehicle Battery Charger is a 12V 50A In-vehicle DC to DC battery charger. It is the latest variant of the award-winning BCDC Dual range and features REDARC’s Smart Start technology.

Styled with a red line running down its back tells you there’s something different about this dual battery charger. A 50-amp charging output makes it the most powerful in REDARC’s BCDC range. 

The BCDC1250D has been developed to provide a higher current output, it features an additional charging stage known as SoftStart which has been engineered to handle more demanding applications.

Featuring a Maximum Power Point Tracking (MPPT) solar regulator, the BCDC1250D will charge from both solar and the alternator simultaneously. And, with built-in 'Green Power Priority' it will select solar charging first, meaning less load on the alternator.

Suitable for 12 or 24-volt vehicle systems, the unit will also work with either standard or variable/smart alternators.

It is compatible with all common types of batteries used in automotive and recreational vehicles such as AGM, Gel, standard lead acid, Calcium and LiFeP04.

As a guide, the BCDC1250D is used for battery bank sizes over 200AH. For smaller batteries of 75-200AH REDARC recommends the BCDC1225D


Proven and Tested

The award-winning technology in the BCDC has been independently verified and tested to ensure battery life is maximised, charging your battery to a proven 100%.

Built in Australia and tested for our unique conditions, the DC to DC battery charger will work in the extreme heat of the Simpson Desert, up to 80°C and can handle deep water crossings at Cape York – water, dust and vibration are no match for this charger.

If you’re heading out into the bush and want to get there and back again safely – you can trust REDARC.  



  •           50amp output makes it the most powerful in REDARC's BCDC range
  •           Separate DC and solar charging inputs
  •           Maximises the performance and life of your auxiliary battery
  •           Simultaneous DC and solar charging with Green Power Priority
  •           Suits 12V/24V standard and variable voltage/smart alternators
  •           Suitable for AGM, GEL, standard lead acid, calcium and Lithium (LiFePO4) batteries


Mounting Brackets

In addition to the use of quality fuse kits, REDARC offer a range of vehicle-specific mounting brackets for our BCDC DC-DC Charger range. The 304 stainless steel bracket allows installation into the front of the vehicle for cooler airflow, ensuring optimal performance. They have been designed to fit existing mounting points in the vehicle. Click here to view the range


Not sure what dual battery system is best for your vehicle? Let Shaun Whale explain more.

 Click here to view the product flyer


Input (Operating) Voltage 9 - 32VDC
Output System Voltage 12VDC
Maximum Charging Voltage 15.3V
Output Current Rating (Cont.) 50A
Input Fuse Rating 60A
Output Fuse Rating 60A
Standby Current Draw <100mA
Output Power 750W
Width (mm) 120
Height (mm) 37
Length (mm) 165
Weight (kg) 1
Warranty 2 Years


Bonus wiring loom - valued at $ 89.00

This wiring loom has been designed for the use with any DC Battery Charger that uses a common earth (one earth cable running from the DC Charger).

The wiring loom has been especially designed around the use with Redarc DC Battery Chargers.

Simple to fit, the loom is wired in 8mm / 8B&S cable, which matches the gauge cable used on both the 25 Amp and 40 Amp DC Charger.

The loom includes: 

- An 8mm / 8B&S Fused connection from the DC charger to alternator input power

- An 8mm / 8B&S fused connection from the DC charger to the AUX Battery feed

- A common earth connection for all negative connections (via a 8mm post)

This DC wiring loom will allow you to add your selection of cable to continue the run from the Midi Fuse bolt to feed both the alternator input and the AUX battery connection.

The recommendation:

When using a 25 Amp DC charger, it is recommended to fit 8mm/8B&S cable in order to minimize voltage drop. This cable can be purchased in any length in either a Twin core 8mm or Single core 8mm. It is important to note that when using DC cable, just as much power is transferred through the negative cable as what it is through the positive cable. It is in the opinion of Home of 12 Volt to always run a twin core cable when possible for power feeds.

When using a 40 Amp DC charger, it is recommended to fit 13.5mm/6B&S cable in order to minimize voltage drop. This cable can be purchased in any length in either a Twin Core 13.5mm or Single core 13.5mm


The DC wiring loom is available to purchase with either (Select your option)

- 2 x 40 Amp Midi Fuse fitted (DC-WL40) *Recommended for 25A Chargers

- 2 x 60 Amp Midi Fuse fitted (DC-WL60) *Recommended for 40A Chargers

The DC wiring loom components are listed below

- 2 x Positive cables with pre-crimped 6mm lugs for Midi Fuse & pre-crimped 8mm joiners for DC connection
- 2 x Midi Fuse Holders
- 2 x Midi Fuses
- 3 x Additional 8mm joiners
- 4 x Red Heatshrink sleeves

- 1 x Earth Block
- 2 x CL10-6 Copper Lugs
- 2 x CL10-8 Copper Lugs
- 4 x Black Heatshrink sleeve

DC-WL Instructions

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