DCC50S 12V 50A Dual Input DC to DC Battery Charger with MPPT
5(8) DCC50S 12V 50A Dual Input DC to DC Battery Charger with MPPT
starts- reviews
AU$399.99 AU$319.99
Calculater  reward Renogy Rays
Options *


AU stock, usually ships in 1 to 3 business days.



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.

If you have any questions regarding this product, please submit a case !

Key Features

  • Multi-input for Battery Charging

          Renogy DC-DC On-Board Battery Charger is designed to charge service batteries from a starting battery linked to an alternator or by utilizing solar panels connected directly to the unit, offering multiple charging options and ensuring your battery stay fully charged.

  • 3-phase MPPT Charging Technology

        With Built-in Maximum PowerPoint Tracking (MPPT), Renogy DC-DC On-Board Battery Charger will charge your service batteries with maximized solar power, providing 3-phase charging (Bulk, Boost and Float) to regulate the whole charging and ensure the batteries will be accurately charged at the correct voltage levels to 100%.

  • Multiple Protections

   Renogy DC-DC On-Board Battery Charger has multiple intelligent protections includes battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection, guaranteeing charging safety and protecting your batteries.

  • Light & Small, Ready to be Set Up 

    With only 9.6in in length, 5.7in in height, and 3.13lbs in weight, Renogy DC-DC On-Board Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in your vehicle.

  • RJ45 Communication Port Featured

    Bluetooth Monitoring Ready! You can monitor this device remotely and simply through your phone and stay constantly updated. Exclusively available with the BT-2 Bluetooth Module accessory and Renogy DC Home App available on the IOS and Google Play Stores, you can monitor this device remotely and simply through your phone and stay constantly updated.

Package Includes


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

Renogy 100 Watt 12 Volt Monocrystalline Solar Panel

1 x


 Battery Temperature Sensor

Battery Temperature Sensor

1 x


IGN Signal Wire

IGN Signal Wire

1 x


RS485 Communication Cable

RS485 Communication Cable

1 x


Option: Renogy BT-2 Bluetooth Module

Renogy BT-2 Bluetooth Module

1 x


Option: Monitoring Screen

Monitoring Screen

1 x


System Voltage : 12VDC Battery Voltage Range : 9-16VDC
Maximum Charging Current : 50A Battery Type : SLD/AGM, GEL, FLD, LISER
Backup Battery Charging Mode : MPPT Charging Efficiency : Up to 97%
Max. Solar Input Voltage : 25V Communication Protocol:RS485
Alternator Input Voltage : Traditional Alternator: 13.2-16VDC  Smart Alternator (Euro 6): 12-16VDC Maximum Alternator Input Power : 660W
Self-consumption : 60mA Operating Temperature Range : -31°F - 149°F
Dimensions : 9.6*5.7*3.0in Weight : 3.13Ibs
Terminal Size:M8*1.25 - 10mm Ground Type:Negative
Storage Temperature Range : -40°F - 176°F Operating / Storage Humidity:0%-95%, No Condensation
FCC Part 15 class B YES
Options: Monitoring Screen  
Supply Voltage: 5VDC Communication Port: RJ45 (RS485 Protocol)
Supply Current: 30mA Display: Backlit LCD
Power Consumption: <1W User Interface: 4 Front Menu Buttons
Operating Temperature Range: -4°F~113°F / -20°C~45°C Mounting System: Wall Mount
Cable Length: 5.00 m (16.4 ft) Voltage Accuracy: ±0.1V
Dimension: 2.76 x 4.33 x 1.25 inch / 70 x 110 x 31.8 mm Operation Temperature: -4°F to 185°F (-20℃~85℃)
Current Accuracy: ±0.1A Weight: 0.14 lbs / 62 g
Wire Length: 16.4ft / 5m
Options: BT-2 Bluetooth Module  
Communication Protocol: RS232 Port Type: RJ45
Input Voltage: 5V or 12V Protection Grade: IP54
Standby Power Consumption: 0.04W Operating Power Consumption: 0.05W
Communication Range: ≤82ft Serial Baud Rate: Fixed Baud Rate 9600bps
Cable Length: 5.00 m (16.4 ft) Dimensions: 2.65 X 1.38 X 0.55 in (67.3 X 35 X 14 mm)
Installation Dimensions: 67.3 φ3.5mm(2.66 φ 0.14in) Operation Temperature: -4°F to 185°F (-20℃~85℃)
Weight: 130g (4.58oz)
FCC Class B Part 15 Compliant YES


Warranty Information

Accessories 2-year material warranty
1. What type of alternator is this on-board battery charger compatible with?
This battery charger is compatible with both traditional and smart alternators. However, since standard/traditional alternator has a fixed voltage when charging, while smart alternator has a controlled charging output based on operating conditions, it is required to connect the charger to the smart alternator through the Vehicle Ignition Port by the IGN Signal Wire comes with the package.
2. What will happen if the service battery is fully charged?
This Renogy's DC to DC MPPT on-board Battery Charger has a built-in Voltage Sensitive Relay (VSR), thanks to which the charger will Trickle Charge the service battery and maintain its fully charged status, and will also Trickle Charge the starting battery via solar panels. The VSR also ensures reliable isolation between the starting battery and service battery, avoiding charging interference.
3. What types of battery does the charger support?
This controller supports Gel, AGM, Flooded, and Lithium battery, but please make sure to set the correct battery type once it is installed. For battery settings please refer to the Manual Book on page 12&15.
4. How do I set the battery since there is no display screen?
To change the battery type you will need to press the push button that is located on the PV+ and ALT+ side of the DCDC, then continue to press the button and the LED will display different colors with each representing a single type of battery. Please refer to the manual on page 15 for Battery Type LED.
1. Do not reverse the polarity since the reverse polarity of the battery connections can cause injury and damage to the device. 2. When connecting the charger and the battery, make sure the battery poles are clean when connecting the terminals, select a sufficient cross-section for the connection cable, tighten the nuts and bolts with proper torque as loose connections may cause overheating. 3. Be careful not to over-torque the terminals on the DCDC as over-torquing may cause irreparable damage (Do not exceed 16 N-m / 3.3 ft-lb). 4. Use the following cable colors: Red: positive connection Black: negative connection 5. If the battery charger is connected to the starting battery and solar panels at the same time, the maximum input current will be 15A for each; if the battery charger only connects one of the two DC inputs, the maximum input current will be 30A.
More questions about your off-grid power system? Learn more from Renogy Learning Center!

Reviews Hide Reviews


Graeme on Sep 9th 2022

Awsome product even under low light this charger continues to provide charge to batteries also while useing blutooth it doesnt interfere with other products whilecamping unlike other brands do making them unuseable while using there same branded chargers

Renogy 50a dcdc charger

Josh K on Aug 22nd 2022

Great product. Been running for 2 weeks so far and couldn’t be happier. Very easy to install. Small enough to fit behind seats in a wagon with drawers in the back. Great versatility with charge profiles. So far excellent product. Fast shipping too so not waiting around for long before it shows up.

Renogy 50a + solar DC to DC

Roger Wood on Jun 22nd 2022

Great product Works perfectly. Could be tweeked to improve the product for a 10 out of 10 but ATM still 8/10

Excellent product so far

John Szalla on Feb 24th 2022

Bought this along with three 100 Ah Smart LFP batteries in 2020. It was simple to install and set up, and has provided excellent service in the short time I've had it. Charging via alternator seems a bit slow, but the solar input's very well utilised. Haven't needed to fit a cooling fan yet, probably because it's not handling anywhere near max current.

DCC50S 12V 50A DC to DC Battery Charger

William Smith on Jan 26th 2022

Arrived in reasonable time and was easy to install. After only a few days it is working well. and doing a much better job on maintaining my camping batteries.

Great product

Rohan Matthews on Aug 4th 2021

I installed the unit over 3 months ago and it has outdone my expectations. It charges my 2 135 Ah batteries faster than my old unit on solar, slower via the alternator. I think I will see even more that 10 years out of these batteries, that's what my previous Renogy system saw me achieve with a constant voltage solinoid rather than DC DC. Highly recommend this unit. Will be adding more solar in the near future and will be buying the panels from Renogy, don't touch ebay panels unless you like getting a 10th of what you paid for. The bluetooth is a great feature as well, just a pitty it's not built in in this day and age, and allows me to see both vehicle and house battery status. I love seeing the vehicle battery charging when the house batteries are full, such a great use of the power.

Review on the 50amp charger,

Harsha Dissanayaka on Oct 19th 2020

Awesome product & looking forward to use these products more regularly with my customers . Only one disappointment was the very delayed postage/delivery which I had to put a customer on hold for quite awhile. Apart from that great product looking forward to dealing with you again. Thanks, Harsha Dissa, Director , Yakka ATS Pty Ltd Australia.

50A DC-DC Charger

Kate Fraser on Mar 4th 2020

I upgraded my vehicle to 400 ah Lithium Batteries, when choosing a DC-DC charger I was very interested in being able to maintain my vehicle start battery during long off-grid trips. The Renogy DCC50S came in at a great price and has all the features I was looking for. I have comprehensively tested my new Lithium charging system and am very impressed with the performance of the DCC50S, the only issue I would advise on is to mount the unit where heat can be dissipated, this unit can get very warm when pushing the full 50 amps through it.