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

SKU: RBC2125DS-21W-US

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$399.99

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A dual charging solution with 12V/24V boost and buck logic.
Compact & lightweight with IP67 waterproof rating.
Featuring auto-switching charging mode while prioritizing green power.
CE, FCC, RoHS certified with comprehensive test reports.
Bluetooth Energy Monitoring with wired CAN communication.

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Description

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

The Renogy IP67 50A DC-DC Dual Input Battery Charger with MPPT is a slim and waterproof solution for tight spaces. With intelligent boost and buck logic, this charger supports 12V/24V-12V/24V systems and prioritizes solar energy to efficiently charge your house battery and reduce generator load. It has a current of 50A and an output of 720W, automatically switching between solar and generator power for continuous charging. Designed for the environmentally conscious user, it strikes a balance between energy efficiency and spaciousness and performance. Transform sustainable energy with Renogy's cutting-edge technology.

Intelligent Dual Charging Mode

Intelligently combining vehicle and solar power, this charger automatically adjusts modes based on sunlight intensity, ensuring optimal energy use at all times.

Versatile Voltage Adaptability

Light and Compact

Compatible with a Wider Range of Voltage

Expanding solar system DIY options for greater versatility.

Compact Design for Space Optimization

Mountable in the engine compartment or side storeroom, this charger optimizes space, creating a more spacious and comfortable living area with easier movement.

Optimized Charging Efficiency

Enhanced Charging Safety

Optimized Charging Efficiency

With 720W charging power, this battery charger can fully charge a 1.2kWh battery in just 1.8 hours.

Enhanced Charging Safety

Comprehensive electric protections safeguard the charging process.

Robust and Resilient Design

Drop-Resistant

The sheet metal casing provides the charger with a durable shell, designed to withstand drops and impacts, ensuring long-lasting performance.

Temperature-Resistant

Built to endure extreme temperatures, this charger operates flawlessly in conditions ranging from -31°F to 176°F, maintaining full-load performance even at 131°F.

Water-Resistant

The all-around glue filling design provides complete protection for the charger and ensures a high level of waterproofing.

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Ultimate Reliability with Impeccable Efficiency

This battery charger efficiently powers the house battery while delivering a trickle charge to the starter battery, ensuring your vehicle starts reliably every time.

Basic Information
System Voltage: 12V/24V - 12V/24V	Solar Input Voltage: 50 VDC
Output Voltage: 9-32 VDC	Alternator Input: 9-32 VDC
Maximum Output Current Rating: 12V@50A ; 24V@25A	Output Power: 720W
Battery Types: AGM/SLD , GEL ,FLD ,LI,USER	Input Fuse Rating: 60A-80A
Output Fuse Rating: 75A-100A	MPPT Tracking Efficiency: 99%
MPPT Charging Efficiency: 97%	Conversion Efficiency: 94%
Temperature Compensation: -3mV / ℃ / 2V (Non-Lithium) and 0mV / ℃ / 2V; no compensation (Lithium)	Idle Power Consumption: ＜100mA
GENERAL DATA
Model: RBC2125DS	Terminal Range: 8AWG-4AWG
Communication Protocol: Modbus ; RV-C	Operating Temperature Range: -31℉ to 176℉/-35℃ to 80℃
Storage Temperature Range: -40℉ to 212℉/-40℃ to 100℃	Humidity: 0%-95%, No Condensation
Maximum Operating Altitude: 3500m	Enclosure Rating: IP67
Dimensions: 7.01 x 4.78 x 1.47 in/178.2 x 121.5 x 37.5mm	Weight: 4.10 lb / 1.86 kg
Certification: UL1741;CE;RoHS;FCC Part 15 class B	Protection: Reverse Polarity Protection/Overvoltage Protection/Over Discharge Protection/Overcurrent Protection/Over Temperature Protection/Overcurrent Protection
WARRANTY INFORMATION
Material and workmanship warranty: 5-year material warranty	Charge Controllers: DCCS Dual Input
Battery Chargers: DCCS Dual Input

Package Includes

NOTE:

If you have any questions regarding this product, please call us at 1 (909) 287-7111 or submit a ticket for troubleshooting assistance.
More questions about your off-grid power system? Learn more from Renogy Learning Center!

IP67 50A DC-DC Battery Charger with MPPT 1 x	Battery Temperature Sensor 1 x
Terminal Rings 4 x	*Install Screw(ST420mm)** 1 x

1. What is the significance of the system voltage value of 12/24V-12/24V for IP67 chargers?

When the IP67 charger is connected to the solar panel, it can use the 12V solar panel to boost the voltage to charge the 24V Housing battery; it can use the 12V solar panel to buck the voltage to charge the 12V Housing battery. When the IP67 charger is connected to the starter battery, the 12V starter battery can be utilized to boost the voltage to charge the 24V Housing battery; the 12V starter battery can be utilized to charge the 12V Housing battery.

2. What are the solar input requirements for this charger?

(1) The charger is suitable for up to 720W solar panel.
(2) The charger is compatible with up to 50V solar panel input.
(3) The charger is compatible with both rigid and flexible modules.

3. What type of alternator is this charger compatible with?

The charger is compatible with smart alternators and traditional alternators, the working voltage of different alternators will be different. The product itself comes with Bluetooth communication function, you can connect to DC Home or Core via Bluetooth, and then adjust the appropriate input voltage value of the charger according to the characteristics of the working voltage of different types of alternators.

4. How do I set the battery type on this charger?

Way 1: The charger itself has a button to set the battery type, the button is next to the "Type" indicator, press it briefly to select a different battery type.
Way 2: The charger itself comes with Bluetooth communication, you can connect our Core, DC Home to change the battery type.

5. How to view data without a display?

The charger itself comes with Bluetooth communication, you can connect to our Core, DC Home to view the charger's data.

More questions about your off-grid power system? Learn more from Renogy Learning Center!

It appears to work well. I just had two lithium batteries installed along with this DC-DC Charger. I now have 300 amps of power in the RV.
I like the ability to be able to charge via solar, alternator or both.
The problem I see right now is the operating temperature of this device.
I drained the batteries to appx 50% and went for a drive to test the system.
The RV business that installed this equipment did a poor job with the charger install. They neglected to mount it and just crammed it down a space that was surrounded by wires.
While going for a test drive I monitored the app on my phone and could see it was showing “CURRENT LIMIT” on the APP display. It was sourcing more than 50 amps at around 50-54 amps.
Along with this the device temperature was rising. It got as high as 201 degrees Fahrenheit before I pulled over and shut it down. This is above the specified temperature per the manual. However, the manual also states it is temperature protected though it doesn’t show a value for it.
Fearing damage I shut it down and let it cool down. I tried it again and it peaked at maximum current and once again climbed to over 200 degrees.
At this point I’m not sure if this is normal or not. It seems a bit excessive to me. To remedy this I went into the settings and adjusted the current setting to 30 amps. This seemed to help a lot. It was running at around 155 degrees. But by this time the batteries were nearly fully charged so I don’t know if that could have helped to keep it cool.
I will have to mount this elsewhere where it can have some air circulating around it and keep the current setting at 30. I really don’t need that much charge current anyway.
So, just be aware that this thing is a hotbox and beware where you decide to mount it.

Bluetooth not working. Technical support not providing answers

Seamlessly and automatically controls power to charge the house batteries from the solar panels (mppt), and the alternator. Love that it reports its operating status to the Renogy app. Simple to set up type of battery for the correct charge profile. Only improvement would be a higher power output. Love this dual input charge controller.

I love my DC to DC charger. I was comparing my solar build with another camper and they were so impressed that they are probably going to switch to Renogy components.