Product Description

The Redarc BCDC1225D is one of Australia’s most trusted 25A DC-DC chargers, designed to reliably charge your auxiliary battery while you travel—no matter where the adventure takes you. This charger delivers a genuine 25 amp output, perfect for running 12V accessories like fridges, lights, and sensitive electronics, making it ideal for 4WDs, caravans, camper trailers, and touring vehicles.

Dual Input for Versatility and Maximum Efficiency

The Redarc BCDC1225D features dual input technology. It seamlessly charges your auxiliary battery using both your vehicle’s alternator and a dedicated solar input—making it the ultimate dual battery charger for off-grid applications. The integrated Maximum Power Point Tracking (MPPT) solar regulator ensures you get the best possible charge from your solar panels, even in low light, for dependable charging performance wherever you are.

Wide Battery Compatibility and Advanced Charge Profiles

This model supports all major battery types, including AGM, Gel, Standard Lead Acid, Calcium, and LiFePO4 Lithium batteries. The BCDC1225D charge profiles are selectable to suit your battery chemistry, protecting your investment and ensuring maximum service life and reliability—no matter your setup. The unit’s multi-stage charging process (Boost, Absorption, and Float) delivers up to 100% state of charge, even for lithium batteries with built-in management systems.

Rugged, Compact, and Built for Harsh Australian Conditions

The Redarc BCDC1225D is engineered to thrive in tough conditions. With a compact, fully-sealed housing (165 x 120 x 37 mm), it resists water, dust, and vibration. Fan-free cooling and robust electronics mean consistent performance in high temperatures and rough terrain. This makes it a top choice for remote travel and demanding installations.

Simple, Flexible Installation

Installing the Redarc BCDC1225D is straightforward, thanks to its flexible mounting options. It can be fitted in the engine bay, cabin, or chassis rail—anywhere close to the auxiliary battery for best results. The charger is compatible with both standard and variable voltage (smart) alternators in 12V and 24V vehicles. For optimum protection, use recommended fuses (FK40 kit) and follow the supplied detailed installation guide for safe, long-lasting operation.

Key Features:

• True 25A output for fast, efficient charging

• Dual input: charges from both vehicle alternator and unregulated solar

• Integrated MPPT solar regulator for maximum solar charging efficiency

• Supports multiple battery chemistries—AGM, Gel, Lead Acid, Calcium, and Lithium

• Multi-stage automatic charging for battery health and longevity

• Compact and fully-sealed: water, dust, and vibration-resistant

• Wide operating temperature: -10°C to +80°C

• Easy installation: engine bay or cabin mounting, clear wiring instructions

• Smart alternator compatible

• Two-year Redarc warranty

• Backed by Australian engineering and support

Technical Specifications:

• Model: Redarc BCDC1225D

• Output current: 25A

• Input voltage range: 9–32V DC (vehicle and solar)

• Solar input voltage: 9–32V (unregulated)

• Supported battery types: AGM, Gel, Standard Lead Acid, Calcium, LiFePO4 Lithium

• Charge profiles: Four selectable profiles (see manual for BCDC1225D charge profiles)

• Dimensions: 165 x 120 x 37 mm

• Weight: 1 kg

• Warranty: 2 years

• Recommended input fuse: 40A (FK40)

• Recommended output fuse: 40A (FK40)

• Max output power: 375W

Why Choose the Redarc BCDC1225D?

• Peace of mind: Torture-tested for Australian outback conditions, with full battery and system protection.

• Longer battery life: Keeps your batteries at optimum charge, extending their lifespan.

• Versatility: Perfect for 4WDs, caravans, camper trailers, and boats.

BCDC1225D Instruction Manual EN

BCDC1225D Install Manual EN DE ES FR IT PL AR

BCDC Brochure EN