Renogy 12V/24V IP67 50A DC-DC Battery Charger with MPPT

Renogy 12V/24V IP67 50A DC-DC Battery Charger with MPPT (RBC2125DS)

The Renogy IP67 50A DC-DC Dual-Input Battery Charger with MPPT is a slim, waterproof powerhouse that fits into tight spaces without compromising performance. Featuring intelligent boost-and-buck logic, it supports 12V/24V-to-12V/24V systems and prioritises solar energy — maximising your house battery charge while reducing reliance on generators. With a robust 50A current and 720W output, it seamlessly switches between solar and alternator power for continuous, efficient charging anywhere your adventures take you.

Intelligent Dual Charging Mode

The charger combines vehicle and solar power intelligently, automatically adjusting to sunlight intensity and driving conditions so your batteries are always charging — reducing wasted energy and generator hours.

Versatile 12V/24V Voltage Adaptability

With buck-boost logic, the charger works with both 12V and 24V setups on the input and output side — so you can build now and upgrade later without replacing your charger. This flexibility makes it easy to match different vehicles, battery banks, and solar arrays with fewer compatibility headaches.

High-Efficiency Charging

Delivering 720W output with 99% MPPT tracking efficiency and 97% MPPT charging efficiency, the charger fully charges your house battery quickly — maximising both solar and vehicle power to keep your systems running reliably on every trip.

Rugged, Waterproof & Temperature-Resistant Design

• Drop-resistant: rugged sheet-metal casing protects against accidental drops, impacts, and vibration — ideal for off-road and mobile installs
• Temperature-resistant: operates from -31°F to 176°F (-35°C to 80°C), maintaining full-load performance even at 131°F (55°C)
• Water-resistant: fully sealed with all-around glue filling and an IP67 rating, protected against water and dust for marine, camping, and wet outdoor use

Reliable Starter-Battery Trickle Charging

While charging your house battery, the charger delivers a precise trickle charge to the starter battery — ensuring your vehicle starts reliably every time and your onboard systems stay powered.

Bluetooth & CAN Monitoring

Monitor your system with built-in Bluetooth energy monitoring plus wired CAN communication (Modbus / RV-C), giving you clear visibility of charge status and system history from your phone — and easy integration with the Renogy ONE Core.

Broad Battery Compatibility

Compatible with AGM/SLD, Gel, Flooded, Lithium (LI), and User-defined battery types, with temperature compensation for accurate, battery-safe charging across the range.

Comprehensive Protections

• Reverse polarity protection
• Over-voltage & over-discharge protection
• Over-current protection
• Over-temperature protection

Ideal Applications

• RVs, caravans, and motorhomes
• 4×4, off-road, and overlanding builds
• Boats and marine installations (IP67 sealed)
• 12V or 24V dual-battery systems
• Solar-plus-alternator hybrid charging

Technical Overview

What’s in the Box

• 1 x IP67 50A DC-DC Battery Charger with MPPT
• 1 x Battery Temperature Sensor
• 4 x Terminal Rings
• 1 x Install Screws (ST4 x 20mm)

Important Setup Note

Always set the correct battery type before use, and mount the charger in a well-ventilated space with airflow — at high charge currents the unit runs hot, and adequate ventilation keeps it within its operating range. For longer cable runs, size your cables up to minimise voltage drop.

Choose the Renogy 12V/24V IP67 50A DC-DC Battery Charger with MPPT for waterproof, buck-boost dual-input charging that works across 12V and 24V systems — the most rugged and flexible charger in the Renogy DC-DC range, built for marine, off-road, and demanding off-grid installations.