Advanced Dual Input Charger for Reliable Off-Grid Power Systems

The IP67 DC-DC MPPT Battery Charger efficiently charges auxiliary batteries from both solar panels and vehicle alternators, ensuring dependable off-grid power supply for caravans, boats, and 4WDs. Designed for versatility, it automatically adapts to 12 V or 24 V systems and optimises solar input using advanced MPPT tracking, delivering efficient, intelligent charging in all weather conditions.

Key Features

  • Dual Input Design: Supports simultaneous charging from solar panels and vehicle alternators for uninterrupted energy supply.
  • MPPT Efficiency: Incorporates Maximum Power Point Tracking for up to 97% solar charging efficiency, maximising harvested energy.
  • Automatic Voltage Matching: Smart buck-boost technology adjusts charging voltage for both 12 V and 24 V systems automatically.
  • Rugged IP67 Protection: Fully sealed against dust and water ingress for reliable outdoor and mobile installations.
  • Intelligent Charging Logic: Prioritises solar input and automatically switches between charging modes to preserve alternator and battery health.
  • Comprehensive Battery Support: Compatible with sealed, gel, flooded, AGM, and lithium batteries for system flexibility.
  • Advanced Safety Functions: Includes over-temperature, over-voltage, and low-temperature protection with LED diagnostics.

Built to withstand harsh environments while delivering efficient and adaptive power management, this unit provides peace of mind for remote or mobile power applications.

Product Specifications
System Voltage 12 V / 24 V DC
Nominal Output Power 720 W
Maximum Charging Current 50 A @ 12 V / 25 A @ 24 V
Maximum Solar Input Voltage 50 V
Maximum Alternator Input Voltage 32 V
Charging Mode MPPT
Charging Efficiency Up to 97 %
Battery Types Supported SLD, AGM, GEL, FLD, Li, User-Defined
Operating Temperature Range −31 °F to 212 °F (−35 °C to 100 °C)
Humidity 0 % to 95 %, no condensation
Dimensions (W × D × H) 178 × 121 × 38 mm
Weight 1.86 kg
Certifications CE, RoHS, FCC Part 15 Class B
SKU REN.RBC2125DS-21W-G2-AU
Model # RBC2125DS-21W-G2-AU
Brand Renogy
Shipping Weight 2.0000kg
Shipping Width 0.180m
Shipping Height 0.400m
Shipping Length 0.125m
Shipping Cubic 0.009000000m3
Unit Of Measure ea

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