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The REDARC BCDC1240D In-vehicle Battery Charger is a 12V 40A In-vehicle DC to DC battery charger. It is the latest variant of the award-winning BCDC Dual range and features REDARCs Smart Start technology.
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 perfect for pairing with a REDARC Lithium Battery. 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%.


  • 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




Redarc 12V 40A DC-DC 3 Stage Battery Charger (with MPPT Solar)

Sales Tax Included |
    • Input (Operating) Voltage: 9 - 32VDC
    • Output System Voltage: 12VDC
    • Maximum Charging Voltage: 15.3V
    • Output Current Rating (Cont.): 40A
    • Type Approval: E-Mark
    • Input Fuse Rating: 60A
    • Output Fuse Rating: 60A
    • Warranty: 2 Years
    • Standby Current Draw: <100mA
    • Output Power: 600W
    • Width (mm): 120
    • Height (mm): 37
    • Length (mm): 165
    • Weight (kg): 1
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