- 40 ampere maximum charging output from dual input sources
maximum power point tracking (mppt) solar regulator integrated
green power priority technology prioritizes solar over alternator charging
- Compatible with 12v and 24v vehicle electrical systems
suitable for standard and variable voltage smart alternators
three charging profiles (a/b/c) with adjustable maximum voltage settings
- Profile a: 14.6v maximum (agm/gel batteries)
profile b: 15.0v maximum (standard lead-acid batteries)
profile c: 15.1v maximum (calcium batteries)
- Lithium (lifepo4) charging profile: 14.6v maximum
simultaneous dc and solar input charging capability
blue wire connection enables low voltage (lv) alternator mode
- Led flash sequence indicates charging stage and input source status
operating temperature range: -40°c to +80°c
australian design and manufacturing with as/nzs certification
The REDARC BCDC1240D is a 12V/24V DC-to-DC battery charger rated for 40 ampere output that charges auxiliary batteries from vehicle alternator and solar panel inputs simultaneously. This unit features Maximum Power Point Tracking (MPPT) solar regulation, Green Power Priority technology, and multi-stage charging profiles compatible with AGM, gel, calcium, lithium (LiFePO4), and standard lead-acid battery types. The package includes the charger unit, dual battery voltage monitor panel with USB outlets, MIDI fuses, and 6 B&S gauge cable for complete installation.
Input Parameters
DC input voltage range: 9V-32V (suitable for 12V and 24V systems)
Solar input voltage range: 9V-32V
MPPT solar voltage range: Variable based on panel configuration
Minimum output battery voltage: 4.2V
Output Parameters
Maximum charging current: 40A continuous
Maximum output power: 600W
Profile A output: 14.6V maximum / 13.3V float (AGM/Gel)
Profile B output: 15.0V maximum / 13.3V float (Standard lead-acid)
Profile C output: 15.1V maximum / 13.3V float (Calcium)
Lithium output: 14.6V maximum (no float stage)
Physical Specifications
Dimensions: 165mm (L) × 120mm (W) × 37mm (H)
Weight: 850g (charger unit only)
Mounting orientation: Horizontal or vertical
Terminal type: Screw terminals with wire gauge markings
& Protection
Operating temperature: -40°C to +80°C
Dust and water ingress protection
Reverse polarity protection: Built-in
Overvoltage protection: 32V cutoff
Short circuit protection: Automatic shutdown