REDARC 20A In-Vehicle Battery Charger (Ignition Control) (BCDC1220-IGN)


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12V 20A DC/DC Multi Stage battery charging system designed to charge your auxiliary/house batteries, from your vehicle, to their optimum levels. IGN version designed for vehicles with variable voltage alternators.


Weight (kg): 0.6
Application: In-car DC-DC charger
Warranty: 2 years

Additional Information

The Redarc BCDC1220 DC/DC 12V 20A Multi Stage battery charging system is designed to charge your auxiliary/house batteries, from your vehicle, to their optimum levels.

The BCDC1220-IGN will operate from a wide operating range (9 – 32V) making it suitable for installations where voltage drop is an issue, as well as giving the option of charging 12V batteries from both 12V and 24V vehicle systems.

The BCDC1220-IGN features multi stage charging profiles specific to the chemistry of the battery under charge, allowing you to charge an auxiliary battery that is of different chemical characteristics to that of the source battery. The unit will act as a dual battery isolator and protect the start battery, should the voltage get too low.

The BCDC1220-IGN is compact in size, easy to install and is fully sealed making it suitable for installation in harsh environments or marine

It is designed to operate with variable voltage alternators.

Dual and auxiliary battery charging has never been so easy, efficient or affordable.


  • Multi Stage DC-DC Battery Charger
  • Start Battery Isolator
  • Fully sealed
  • Super quiet operation
  • Charges AGM, Gel, Calcium content, VRLA and Standard Lead Acid batteries
  • Works with Variable Voltage Alternators


  • Input: 9 – 32V D
  • Efficiency: Typically 95%
  • Output Current: 20A nominal
  • Output voltage: 12V
  • Output Power (max): 300W
  • No Load Current: <100mA
  • Standby Current: <5mA
  • Safety: AS/NZS 60335.2.29, AS/NZS 60335.
  • Environmental: ROHS Compliant
  • C-Tick: EMC-CISPR.1
  • Dimentions: 100x120x37mm
  • Weight: 485g

Download BCDC1220 brochure here (pdf).

Download BCDC1220-IGN user manual here (pdf).

Manufacturer Information