CORE 12V 40A DC-DC On-Board Battery Charger
SKU RBC40D1U-G2-SA
R3 110.43
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CORE 12V 40A DC-DC On-Board Battery Charger
Product Details
CORE 12V 40A DC-DC On-Board Battery Charger
The CORE 12V 40A DC-DC On-Board Battery Charger is a high-efficiency charging solution designed for caravans, camper vans, trailers, 4x4s, and off-grid power systems. Engineered to safely charge auxiliary batteries from your vehicle’s alternator while driving, this intelligent charger supports both traditional and smart alternators, making it ideal for modern vehicles.
With advanced battery management, lithium compatibility, and optional Bluetooth monitoring, it provides reliable and efficient charging performance wherever your journey takes you.
🔹 Key Features
- 40A high-efficiency DC-DC charging
- Supports both traditional and smart alternators (Euro 6 compatible)
- Up to 94% charging efficiency
- Intelligent alternator detection for starter battery protection
- Compatible with lithium and lead-acid battery types
- Optional Bluetooth monitoring via BT-2 module
- Compact wall-mounted design for easy installation
- Built-in comprehensive electronic protection systems
- RS485 communication support
⚡ Optimised Charging Performance
Designed to maximise energy efficiency while driving, the charger delivers reliable power to your auxiliary battery system with minimal energy loss.
- Maximum charging efficiency: 94%
- Output current: 40A
- Output power: 584W
🔋 Smart Battery Compatibility
Compatible with a wide range of battery technologies:
- AGM
- Gel
- Flooded Lead Acid
- Lithium Iron Phosphate (LiFePO4)
- USER programmable settings
The smart battery management system allows easy activation or deactivation of lithium charging modes for improved battery performance and longevity.
🚙 Intelligent Starter Battery Protection
The built-in alternator detection system ensures charging only takes place while the engine is running, helping prevent unnecessary drain on the starter battery.
Supports:
- Traditional alternators: 13.2V – 16.0V DC
- Smart alternators (Euro 6): 12V – 16.0V DC
📱 Optional Bluetooth Monitoring
When paired with the optional BT-2 Bluetooth Module, the charger allows:
- Remote monitoring and configuration via the Renogy App
- Integration with Renogy One Core
- Data logging for up to 365 days
- Convenient system management from your smartphone
🛡️ Advanced Protection Features
Comprehensive built-in protection systems include:
- Reverse polarity protection
- Over-voltage protection
- Over-discharge protection
- Over-current protection
- Over-temperature protection
📋 Technical Specifications
| Specification | Details |
|---|---|
| System Voltage | 12V–12V |
| Maximum Output Current | 40A |
| Output Power | 584W |
| Charging Efficiency | 94% |
| Alternator Input Voltage | 12V–16V DC |
| Battery Compatibility | AGM, Gel, Flooded, Lithium (LiFePO4), USER |
| Input Fuse Rating | 60A |
| Output Fuse Rating | 50A |
| Idle Power Consumption | <15mA |
| Terminal Size | 8AWG – 6AWG |
| Communication Protocol | RS485 |
| Operating Temperature | -25°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Rating | 0%–95% Non-Condensing |
| Maximum Operating Altitude | 3000m |
| Dimensions | 237 × 60 × 153 mm |
| Weight | 1.88kg |
🌍 Ideal Applications
Perfect for:
- Caravan and trailer battery systems
- Camper van electrical setups
- 4x4 dual battery systems
- Off-grid power installations
- Overlanding and touring vehicles
- Lithium battery charging systems
🔧 Easy Installation
The compact second-generation wall-mounted design allows for quick and simple installation, making it ideal for both experienced installers and first-time solar or battery system users.
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