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12V 40A DC to DC Battery Charger

SKU: RCB40D1U-BT2-UK
£114.99 £189.99
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valid until 2026-03-31
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  • • Alternator running detection safeguards the starter battery.
  • • Simple and compact layout ensures easy installation.
  • • BT-2 Bluetooth enables remote monitoring.
  • • Advanced protections ensure efficient and safe charging.
  • • Lithium Ion Battery Activation offers customization.
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Description
Includes
Specs
Downloads
FAQ
Reviews

Meet the Renogy 12V 40A DC to DC Battery Charger, the second generation of the DCC series. Built for the ultimate on-the-go charging experience, this state-of-the-art charger combines efficient energy utilization with smart control. It is compatible with both traditional and smart generators, safeguarding the batteries of your vehicle while reaching up to 94% charging efficiency. With advanced charging logic, the charger improves performance for better energy management. Stay on top of things through remote monitoring with the Renogy app to check system status at any time and from anywhere. Whether one is venturing out into the great outdoors or simply embracing the van life, the Renogy 12V 40A DC to DC Battery Charger is a reliable companion for efficient and effective charging.

Renogy 12V 40A DC to DC Battery Charger

Elevate your driving charging experience with smart control.

Advanced High-Temperature Performance

The second-generation DCC charger intelligently reduces output power in high-temperature environments, ensuring safe and efficient charging without compromising system performance.

Optimize Battery Health

Enable or disable lithium battery activation based on battery status via the DC Home app, extending battery lifespan directly from your phone!

Smart Control for Simplicity and Efficiency

Effortless remote monitoring and control of charging parameters.

Comprehensive Accessories for Easy Installation

The included battery temperature sensor delivers real-time data to the charger, enabling precise adjustments to charging parameters for optimal performance and battery longevity.

Quieter Cooling Solution
Corrosion-Proof for Long-Term Use

Quieter Cooling Solution

Experience enhanced performance with natural heat dissipation and reduced 30dB noise levels.

Corrosion-Proof for Long-Term Use

This compact, corrosion-resistant charger is perfect for installation in small boat cabins and humid marine environments, ensuring reliable performance in challenging conditions.

Package Includes

Battery Charger

x 1

Battery Temperature Sensor

x 1

IGN Signal Wire

x 1

User Manual

x 1

Terminal Ring

x 1

Renogy 40A DC to DC Battery Charger

GENERAL DATA

Terminal Range
8AWG - 6AWG
Grounding
Common Negative
Communication Protocol
RS485 Communication
Operating Temperature Range
-4℉ -122℉ /-25 ℃ - 60℃
Storage Temperature Range
-4℉ -122℉ /-40 ℃ - 85℃
Humidity
0%-95%, No Condensation
Maximum Operating Altitude
3000m
Enclosure Rating
0%- 95% ,no condensation
Dimensions
9.31 in (236.5 mm)x6.00 in (152.5 mm)x2.30 in(58 mm)
Weight
4.41 lb / 1.88 kg
Certification
CE/RoHS/FCC
Protection
Reverse Polarity Protection/Overvoltage Protection/Over Discharge Protection/Overcurrent Protection/Over Temperature Protection

ELECTRICAL DATA

System Voltage
12V-12V
Alternator Input Voltage
"Traditional Alternator: 13.2-16.0VDC Smart Alternator (Euro 6): 12-16.0VDC"
Maximum Output Current Rating
40A
Output Power
584W
Battery Types
AGM, Gel, Flooded, Lithium-iron Phosphate, User
Input Fuse Rating
60A
Output Fuse Rating
50A
Charging Efficiency
94%
Temperature Compensation
-3mV / ℃ / 2V (Non-Lithium), 0mV / ℃ / 2V; no compensation (Lithium)
Idle Power Consumption
＜15mA

PACKAGE INCLUDES

The First Option
battery charger x1, temperature sensor x1, IGN Signal Wire x1, User Manual x1, Terminal Ring x4

WARRANTY INFORMATION

Accessories
2-year prorated material and workmanship warranty

Resources Download

User Manual

Download

Warranty

Download

Frequently Asked Questions

When installing the DC-DC battery charger, are there any precautions I need to be aware of?

First, installing the charger horizontal will improve venting and heat dissipation of the charger. Additionally, positioning the DC-DC charger nearer the service battery is advised.

What types of batteries can the charger be used for?

Our charger is compatible with the following 12V battery types by default: AGM (Absorbent Glass Mat) FLD (Flooded Lead-acid) GEL (Gelled Electrolyte) SLD (Sealed Lead-acid) In addition, our charger also features a custom mode, which can be adjusted according to the specific needs of different batteries to ensure optimal charging performance.

How does the charger have communication functionality?

To enable communication, purchase the RENOGY BT-2 Bluetooth module and connect it to the charger's communication port. This will establish communication with mobile terminals like DC Home and Core, granting access to crucial data.

What stages of charging logic do smart chargers typically include?

Smart chargers typically feature a four-stage charging logic design, encompassing the bulk charge stage, constant voltage stage, float charge stage, and equalization stage. These stages ensure that batteries can be charged safely and efficiently.

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