ORDER BY 3PM FOR SAME DAY DISPATCH
Renogy 12V 20A DC to DC Battery Charger
Renogy 12V 20A DC to DC Battery Charger
SKU:CVB-20D1U-AU
Out of stock
BUNDLE & SAVE
Renogy 12V 20A DC to DC Battery Charger
✅ Same Day Dispatch – Renogy Range
In stock now at Campervan Builders.
Unlike other sellers, we don’t wait until you order – we stock it and dispatch the same day
(when ordered before 3 PM AEST).
📝 Renogy 12V 20A DC to DC Battery Charger
Power your adventures with the Renogy 12V 20A DC to DC Battery Charger, a compact and efficient charging solution designed for dual battery systems in caravans, RVs, 4WDs, boats, and off-grid setups. Built for versatility, it ensures optimal charging from your vehicle’s alternator while protecting your starter battery — making it the perfect companion for reliable energy anywhere you travel.
Supporting a wide range of 12v battery types, including AGM, Gel, Calcium, VRLA, Lead-Acid, and Lithium, this charger delivers smart, safe, and efficient performance in a durable, vibration-resistant housing.
⭐ Essential Benefits
• Smart multi-stage charging – automatically adjusts through bulk, absorption, and float stages for maximum charge efficiency.
• Starter battery protection – integrated isolator prevents discharge of the vehicle’s main battery while charging the auxiliary system.
• Battery versatility – compatible with AGM, Gel, Calcium, VRLA, Lead-Acid, and Lithium batteries.
• Compact & efficient – 20A output ideal for smaller dual-battery setups, ensuring steady and consistent charge delivery.
• Sealed and durable – vibration and dust-resistant design suitable for under-bonnet or marine environments.
• Temperature compensated – adjusts charging based on ambient temperature for longer battery life (non-lithium only).
• Silent operation – fanless design with passive cooling ensures noise-free performance.
• Comprehensive protection – built-in safeguards against over-voltage, reverse polarity, short circuit, and overheating.
⚙️ Functionality
The Renogy 12V 20A DC to DC Battery Charger intelligently manages energy from your alternator or starter battery to your auxiliary battery. Its multi-stage charging process enhances battery health and longevity while preventing system backflow. Designed for reliability in challenging environments, it operates quietly and efficiently — perfect for mobile, marine, or off-grid power setups.
🔌 Compatibility
• Compatible with 12v electrical systems
• Works with AGM, Gel, Calcium, VRLA, Lead-Acid, and Lithium batteries
• Ideal for caravans, 4WDs, RVs, marine, and off-grid applications
🧰 Installation Difficulty
🟡 3/5 (Moderate) – suitable for users with basic 12v wiring knowledge for alternator and auxiliary battery integration.
🔍 Features
• 20A high-efficiency DC to DC charging
• Multi-stage charging for all battery chemistries
• Integrated battery isolator function
• Fully sealed, fanless, and vibration-resistant housing
• Intelligent temperature compensation (for non-lithium)
• Multiple electronic protections for safety
• Compact, lightweight, and corrosion-resistant body
📊 Specifications
| Specification | Detail |
|---|---|
| System Voltage | 12V DC |
| Charging Current | 20A |
| Supported Battery Types | AGM, Gel, Calcium, VRLA, Lead-Acid, Lithium |
| Operating Voltage Range | 9V – 32V |
| Protection Features | Over-voltage, reverse polarity, short circuit, overheating |
| Cooling Type | Passive (no fan) |
| Enclosure Type | Fully sealed, vibration and dust resistant |
| Recommended Applications | Automotive, Marine, Off-grid |
| Construction | Rugged, compact, and corrosion-resistant |
📦 What’s Included
• 1 × Renogy 12V 20A DC to DC Battery Charger
• 1 × Installation Manual
Our Commitment
At Campervan Builders, our commitment is simple: we only supply quality campervan, caravan, motorhome, and RV parts that we’ve personally tested in real off-grid conditions. From interior LED lighting to Starlink 12V conversion kits, every product is chosen for reliability, durability, and ease of installation. We back this with fast shipping Australia-wide, friendly support, and honest advice to help DIY builders and professionals alike. When you shop with us, you’re choosing proven gear that keeps you connected and comfortable on every adventure.