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DCC30S 12V 30A Dual Input DC-DC On-Board Battery Charger with MPPT - RBC30D1S-BT-US

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Renogy's DC to DC MPPT on-board Battery Charger is designed to give you options! This multi-stage, multi-input battery charger can charge a service battery from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit. While your vehicle's alternator prioritizes your starting battery, this unit will allow your solar system to charge your service battery first! It's the smart way to keep yourself fully charged and off-grid longer! And with multi-stage charging and multi-chemistry functionality, Renogy's DC to DC MPPT Charger has you covered whether you're using Flooded, Gel, AGM, or Lithium batteries. With RJ45 communication port featured, you can unlock monitoring features exclusively using the BT-2 Bluetooth Module and Renogy DC Home App, control and monitor the device remotely through your phone in real time.


Smart Energy Monitoring: With the Renogy ONE Core, you can now monitor your energy usage like never before. Get instant access to real-time data and intuitive visuals that make understanding your energy consumption a breeze. Stay informed and take control of your power needs with this advanced monitoring system.

Multi-Input Efficiency Charging: Say goodbye to traditional charging methods. The Renogy DC-DC Battery Charger offers unique dual charging options for maximum efficiency. Charge your house battery from a starter battery linked to the car alternator or directly from solar panels connected to the unit. And the best part? You can charge both ways simultaneously, drastically reducing charging time. Enjoy up to 99% MPPT tracking efficiency and 94% conversion efficiency for optimized performance.

Ingenious Structure Design: We care about your safety and the integrity of our product. The Renogy ONE Core features removable side covers to protect product terminals during transportation and daily use, preventing electrostatic damage. Our all-in-one NEG- terminal with partition design simplifies installation, integrating terminals for solar panels, the array starter battery, and the house battery, while preventing misconnection risks.

Diversified Smart Monitoring: Stay connected no matter where you are. The Renogy 30A DC-DC Battery Charger supports the Modbus protocol, making it compatible with various monitoring devices, including the RMS-DCDC monitoring screen, DC Home App, and Renogy One integrated screen. Whether you're at home, in your vehicle, or on the go, you can effortlessly manage and monitor your energy usage remotely in any scenario and situation.

Soft Start Circuit Design: Protect your batteries and charger with our innovative soft start circuit design. The voltage at the input end of the Renogy 30A DC-DC Battery Charger gradually rises, avoiding sudden overvoltage during vehicle alternator starts that could lead to damage or over-discharge of the starter battery. Ensure smooth operation and extended product life with this thoughtful feature.

Comprehensive Security Assurance: Your safety is our top priority. The Renogy DC-DC Battery Charger is multi-certified to CE, FCC, and PoHs standards, ensuring top-notch quality and reliability. We've integrated multiple intelligent protections, including battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel, and alternator reverse polarity protection. Rest easy, knowing your batteries and equipment are safeguarded against potential risks.

Upgrade to the Renogy ONE Core today and enjoy smart energy monitoring, efficient charging, and comprehensive security assurance. Embrace a more sustainable and reliable energy solution for all your power needs.

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT

DCC50S 12V 50A DC-DC On-Board Battery Charger with MPPT




  • System Voltage: 12VDC
  • Battery voltage Range: 9-16VDC
  • Maximum Charging Current: 30A
  • Battery Types: SLD/AGM, GEL, FLD, LISER
  • Service Battery Charging Mode: MPPT
  • Charging Efficiency: Up to 97%
  • Max. Solar Input Voltage: 25V
  • Max. Solar Input Power: 400W
  • Alternator Input Voltage (Traditional Alternator): 13.2-16VDC
  • Alternator Input Voltage (Smart Alternator - Euro 6): 12-16VDC
  • Max. Alternator Input Power: 400W
  • Self-consumption: 60mA


  • Ground Type: Negative
  • Terminal Size: M8*1.25 - 10mm
  • Temperature Compensation: -3mV/C/2V
  • Operating Temperature Range: -31°F to 149°F
  • Storage Temperature Range: -40°F to 176°F
  • Operating / Storage Humidity: 0%-95%, No Condensation
  • Dimensions: 9.6 x 5.7 x 3.0 inches
  • Weight: 3.13 lbs
  • Communication Protocol: RS485


  • CE: YES


  • Material and workmanship warranty: 2 Year


Item Quantity
Battery Charger 1
Battery Temperature Sensor 1
IGN Signal Wire 1
RS485 Communication Cable 4