REDARC 40A Classic BCDC1240D 12V / 24V DC to DC Dual Battery Under Bonnet Vehicle Charger




The REDARC BCDC1240D 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.


  • 2 x Bussmann Stackable Midi Fuse Holder with Red Cover
    • Includes 2 x 60A Midi Fuse
  • 4 x 10-5mm Cable Lugs for 6 B&S Cable Size
    • Suitable for up to 9M of Cable Install Length
  • 2 x 50A Grey Anderson Style Plug with Cable Lugs
    • Suitable for Fridge or other In-Vehicle Power Appliances
  • 2 x 50A Red Anderson Style Plug with Cable Lugs
    • Suitable for Solar Power Input
  • 1 x Universal Stainless Steel Mounting Bracket

Featuring a Maximum Power Point Tracking (MPPT) solar regulator, the BCDC1240D will charge from both solar and the alternator simultaneously. 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 BCDC1240D also comes with patented charging profiles, including a lithium charging profile. The 'Dual' input range will continue to charge all other types of batteries including AGM, GEL, standard lead acid and calcium. 

As a guide, the BCDC1240D 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.  


  • 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 LiFePO4 batteries

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