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🧾 Overview
The REDARC 12A Trailer Battery Charger is a compact, on-the-move DC-DC charging solution designed to keep your trailer’s auxiliary battery fully charged while protecting your tow vehicle’s starting battery. Ideal for dump trailers, utility trailers, boat trailers, liftgates, winches, and hydraulic systems, this charger delivers reliable power management without complex wiring.
Featuring advanced 3-stage charging, the unit charges the trailer battery to a true 100% state of charge while intelligently isolating the vehicle’s start battery to prevent discharge. Its compact design allows for easy installation in a trailer nose cone, eliminating the need for heavy-gauge wiring runs. The charger is compatible with all common battery chemistries, including modern lithium systems.
✔ Charges trailer battery while driving
✔ Protects vehicle starting battery
✔ Compact, easy trailer-mounted install
✔ Compatible with lead-acid, AGM, gel & lithium batteries
🛠 Installation
- Designed for trailer-mounted installation
- Commonly mounted in trailer nose cone
- No heavy-gauge wiring required
- Integrates between tow vehicle and trailer battery
- Professional installation recommended for best results
📌 Specs
- 📌 Key Features & Benefits
- 12-amp DC-DC charging output
- 3-stage charging profile for optimal battery health
- Charges auxiliary trailer battery to 100% while driving
- Protects tow vehicle’s starting battery from discharge
- Supports trailer-mounted equipment such as winches and hydraulic pumps
- Compact footprint simplifies installation
- Compatible with all major battery types and chemistries
- 📐 Specifications
- Product Type: Trailer DC-DC battery charger
- Output Current: 12 Amps
- Charging Stages: 3-stage
- Mounting Location: Trailer (nose cone or protected area)
- Battery Compatibility:
- Standard Lead-Acid
- Calcium
- Gel
- AGM
- Lithium (LiFePO₄)
- 📦 What’s Included
- REDARC 12A trailer battery charger
- 🛡 Warranty
- Manufacturer-backed warranty
- Warranty coverage provided by REDARC
⚠️ Fitment Notes
- Universal trailer application
- Compatible with trailers pulled by 12V vehicles
- Ideal for dump trailers, utility trailers, boat trailers, and equipment trailers
- ⚠️ Fitment Notes
- Designed for trailer auxiliary battery charging only
- Requires 12V tow vehicle electrical system
- ❌ Not intended to charge vehicle starting battery
- Verify battery chemistry selection during setup