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Renogy 20A DC to DC Battery Charger

Name: Renogy 20A DC to DC Battery Charger
Brand: SolarNova
SKU: RNG-DCC1212-20-G1-SA
Price: 1698.32 ZAR
Availability: OutOfStock

Original price was: R2612,80.Current price is: R1698,32.

Out of stock

The Renogy 12V 20A/40A DC-DC On-Board Battery Charger (second-generation DCC series) is an intelligent alternator-to-battery converter that safely charges your auxiliary battery from your vehicle’s alternator while driving. With built-in alternator running detection, intelligent charging logic, comprehensive electronic protections, and up to 94% efficiency, it works with Flooded, Gel, AGM/SLD, and Lithium batteries. A compact wall-mounted design and Bluetooth control via the BT-2 module and DC Home app make it ideal for RVs, trucks, motorhomes, commercial vehicles, boats, and yachts.

Out of stock

SKU: RNG-DCC1212-20-G1-SA

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Overview

Renogy 12V 20A/40A DC-DC On-Board Battery Charger (DCC Gen 2)

The Renogy 12V 20A/40A DC-DC On-Board Battery Charger is the second generation of Renogy’s DCC series — an intelligent onboard converter that delivers the ultimate driving-charge experience. Compatible with both smart and traditional alternators, it charges your auxiliary battery efficiently while you drive, safeguarding your vehicle’s starter battery throughout. With multiple electronic protections and intelligent charging logic, it’s a dependable companion for outdoor adventures and van life alike.

Safeguards Your Starter Battery

Built-in alternator running detection ensures charging only occurs when the engine is running, protecting your vehicle battery. Even during the instant of vehicle startup, the charger swiftly adjusts its charging mode to guarantee no harm comes to the starter battery.

Simple, Compact Wall-Mounted Design

The Gen 2 DCC charger adopts a clean wall-mounted design that’s simple yet efficient — easy to install even for solar beginners. Its internal layout maintains a safe distance between the input and output power terminals, effectively eliminating the risk of positive/negative short circuits.

Intelligent Bluetooth Control

With the advanced BT-2 Bluetooth module (sold separately), you can remotely control charging parameters via the DC Home app and Renogy ONE Core. The charger records up to 365 days of data for comprehensive ecosystem monitoring.

Complete Electronic Protection

Overload & short circuit protection
Over-temperature protection with intelligent output adjustment in high heat
Over-voltage protection
Safe-distance terminal layout to prevent short circuits

Lithium Battery Activation On/Off

Intelligent lithium battery activation ensures optimal battery performance, and a simple one-touch operation lets you enable or disable the feature — giving you complete control over your battery’s status.

High Efficiency & Broad Compatibility

Achieving up to 94% charging efficiency, the charger works seamlessly with Flooded, Gel, AGM/SLD, and Lithium batteries, and is compatible with both smart (Euro 6) and traditional alternators.

Ideal Applications

RVs, caravans, and motorhomes
Trucks and commercial vehicles
Boats and yachts
Camper van and 4×4 dual-battery builds
Auxiliary/house battery charging systems

Technical Overview

Specification	RBC20D1U (20A)	RBC40D1U (40A)
System Voltage	12V DC	12V DC
Rated Charging Current	20A	40A
Charging Efficiency	Up to 94%	Up to 94%
Battery Types	Flooded, Gel, AGM/SLD, Lithium	Flooded, Gel, AGM/SLD, Lithium
Alternator Compatibility	Smart (Euro 6) & traditional alternators
Bluetooth Monitoring	Via BT-2 module (sold separately) + DC Home app / Renogy ONE Core
Data Logging	Up to 365 days
Mounting	Wall-mounted
Dimensions (20A)	237 x 132 x 61 mm (23.7 x 13.2 x 6.1 cm)
Weight (20A)	1.5 kg
Warranty	2-year material and workmanship

Important Setup Note

Always set the correct battery type before use — an incorrect setting can damage the charger and your battery, and voids the warranty. When customising charging parameters, consult your battery manufacturer’s recommended values first.

Choose the Renogy 12V 20A/40A DC-DC On-Board Battery Charger for smart, reliable alternator charging that keeps your auxiliary battery topped up on every journey — the dependable heart of any RV, marine, or commercial dual-battery system.

Additional information

brands	SolarNova

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Get a 35% discount on all products upon registration as a partner when you buy direct from us. We supply genuine RENOGY products nationwide with local warranty support, expert advice, and a quick approval process. Register Now with no middleman or reseller markup to get authentic products at the best possible price.

35% Partner Discount

Get a 35% discount on all products upon registration as a partner when you buy direct from us. We supply genuine RENOGY products nationwide with local warranty support, expert advice, and a quick approval process. No middleman or reseller markup, you get authentic products at the best possible price.

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SolarNova is an official accredited supplier, authorised to supply genuine RENOGY products in South Africa. We offer authentic products, local support, warranty assistance, and expert advice for solar, backup power, and off-grid energy solutions across South Africa.