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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.
12V 50A DC-DC Dual Battery Charger
Renogy's enhanced DC-DC Dual Input Battery Charger now supports up to 50V solar input, enabling faster and more efficient house battery charging..

Intelligent Charging Mode Switching
Charge with advanced logic and 'Low Solar Cutoff Mode' for optimal performance in all weather conditions.

Versatile DIY Options
Enjoy greater customization with support for connecting solar modules in series, accommodating up to 50V solar input voltage, and expanding your DIY possibilities.

Adapt to Extreme Temperatures
Consistent high efficiency in extreme temperatures with precise battery temperature compensation.

NEG-terminal design for Easy Installation
The all-in-one NEG-terminal design consolidates connections for the solar panel array, starter battery, and house battery, optimizing installation space and simplifying setup.

Comprehensive System Protections
This battery charger offers advanced intelligent protections for batteries, solar panels, and the alternator, delivering a secure and efficient charging experience while safeguarding your system components.

Soft Start Circuit Design for Enhanced Battery Stability
The soft start circuit gradually increases the charger's input voltage, preventing sudden overvoltage and over-discharge.

Protect Your Solar Panels at Night
Reverse current protection prevents potential damage caused by reverse charging from the battery to the solar panels at night, ensuring system safety and reliable performance.

Package Includes
12V 50A DC-DC On-Board Battery Charger with MPPT
Battery Temperature Sensor
Battery Voltage Sensor
IGN Signal Wire
User Manual
System Voltage: 12V - 12V
Solar Input Voltage: 50 VDC
Output Voltage: 9-16 VDC
Alternator Input: Traditional Alternator: 13.2-16 VDC;Smart Alternator (Euro 6): 12-16 VDC
Maximum Output Current Rating: 50A
Output Power: 660W
Battery Types: AGM/SLD , GEL ,FLD ,LI,USER
Charging Efficiency: 94%
Temperature Compensation: -3mV / ℃ / 2V (Non-Lithium);0mV / ℃ / 2V (Lithium)
Idle Power Consumption: <30mA
Grounding: Common Ground
Communication Protocol: RS485
Operating Temperature Range: -31℉ to 149℉/-35℃ to 65℃
Storage Temperature Range: -40℉ to 176℉/-40℃ to 80℃
Humidity: 0%-95%, No Condensation
Dimensions: 9.61 x 5.75 x 3.78 inch/244 x 146 x 77mm
Weight: 4.10 lb / 1.86 kg
Certification: CE;ROHS;FCC Part 15 class B
Warranty: 2-year material warranty