REDARC BCDC1225D Dual Input 25A In-Vehicle DC-DC Battery Charger

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REDARC In-vehicle Dual Battery Charger

The REDARC BCDC1225D In-vehicle Battery Charger is the next generation in REDARC's DC to DC charging technology, with additional features that make it the most advanced dual battery charger on the market.

Featuring a Maximum Power Point Tracking (MPPT) solar regulator, the BCDC1225D 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.

The BCDC1225D features the same patented charging profiles as it’s predecessor along with a new lithium charging profile making the unit suitable for charging AGM, Gel, Standard Lead Acid, Calcium and LiFePO4 batteries.

For most applications, the BCDC1225D is suitable for battery bank sizes of 75-200AH. For higher capacity needs of over 200AH, REDARC recommends the BCDC1240D.

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.


  • 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.

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

Click here to view the product flyer


SKU number BCDC1225D 
UPC number 9338628004348
Width (in) 4.72  
Height (in) 1.46  
Length (in) 6.5  
Weight (lb) 2.3 
Input (Operating) Voltage 9 - 32VDC 
Output System Voltage 12VDC 
Maximum Charging Voltage 15.3V 
Output Current Rating (Cont.) 25A  
Input Fuse Rating 40A  
Output Fuse Rating 40A  
Standby Current Draw < 100mA  
Output Power 375W  
Type Approval E-Mark  
Warranty 2 Years  
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