The REDARC BCDC1240D is a rugged under-bonnet battery charger designed for 12V systems, providing 40A of DC to DC charging power. Engineered to excel in engine bay setups, this charger is encapsulated to ensure its resilience against harsh elements like heat, water, and dust.

Equipped with a cutting-edge Maximum Power Point Tracking (MPPT) solar regulator, the BCDC1240D Classic facilitates dual charging from both solar panels and the alternator simultaneously. Its intelligent ‘Green Power Priority’ feature prioritizes solar charging, reducing the load on the alternator.

Compatible with both 12V and 24V vehicle systems, the unit seamlessly adapts to standard as well as variable/smart alternators.

For reference, the BCDC1240D is typically employed for lead-acid battery banks exceeding 200Ah and lithium batteries surpassing 100Ah. It’s important to consult the manufacturer’s specifications for your specific battery and ensure that the charger’s ‘Continuous Current Rating’ adheres to the recommended maximum charging current. For smaller batteries, the BCDC1225D is recommended.

Proven and Tested

Proven and meticulously tested, the BCDC’s award-winning technology guarantees optimal battery longevity, consistently delivering a complete 100% charge* over multiple cycles.

*Note: Larger battery banks might require multiple cycles for full charging.

Engineered and tested in Australia to withstand its unique conditions, this DC-to-DC battery charger thrives even in extreme environments like the scorching Simpson Desert (up to 80°C) and challenging water crossings at Cape York. Its durability against water, dust, and vibrations is unparalleled.

When venturing into remote areas, placing a premium on safety and reliability, you can confidently rely on 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
  • Suitable for use on vehicles with conventional alternator charging systems
Additional Information
Weight 2 kg
Dimensions 33 × 13 × 6 cm


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