Save Up to 35%
Get a 35% discount on all products upon registration as a partner when you buy direct from us.
Estimated delivery: 24. October – 26. October
estimated delivery time within South Africa
Sale 12V
Renogy 12V 40A DC-DC Battery Charger with MPPT
Original price was: R4151,50.R2698,47Current price is: R2698,47.
The Renogy 12V 40A DC-DC Battery Charger with MPPT is a versatile on-board charger that keeps your auxiliary battery topped up from both your vehicle’s alternator (while driving) and solar panels (when parked).
Estimated delivery: 24. October – 26. October
estimated delivery time within South Africa
Multiple Payment Options Available
Overview
Renogy 12V 40A DC-DC Battery Charger with MPPT (RBC40D1S)
This sleek, versatile Renogy 12V 40A DC-DC Battery Charger with MPPT keeps you powered wherever you go. It switches seamlessly from DC (alternator) input while driving to solar charging when parked — and with a simple press of the SELECT button you can set solar priority mode for maximum efficiency. Enjoy reliable, superior-performance charging for your auxiliary battery in any RV, marine, or off-grid dual-battery setup.
Seamless Mode Switching
The system automatically switches to the alternate charging mode when the input voltage in the primary mode drops below the default threshold — ensuring continuous, efficient charging whether you’re on the road or parked in the sun.
DC & Solar Priority Modes
Choose between DC Priority and Solar Priority with a single press of the SELECT button. Solar Priority draws from the sun first to minimise alternator load and running costs — the most cost-effective way to charge on the road.
Built-In MPPT Solar Charging
Integrated Maximum Power Point Tracking (MPPT) extracts the maximum available power from your solar panels, automatically tracking the optimal voltage as light conditions change for efficient solar harvesting throughout the day.
Broad Battery & Alternator Compatibility
Compatible with AGM, Gel, Flooded, and Lithium Iron Phosphate (LiFePO4) batteries, and with both traditional alternators (13.2–16V) and smart Euro 6 alternators (12–16V). Battery type is set easily via the onboard buttons — no display screen required.
Comprehensive System Protections
Multiple electronic protections safeguard your system and batteries for secure, worry-free charging, while onboard lights and buttons make operation simple and provide clear error alerts.
Easy Installation
Pre-installed wires and clear labelling make installation straightforward. For longer cable runs, use a larger gauge to minimise voltage drop, reduce power loss, and protect your batteries.
Multiple Safety Certifications
Complies with FCC Part 15 Class B, CE, RoHS, and SAA standards for reliable, certified off-grid power.
Ideal Applications
- RVs, caravans, and motorhomes
- SUVs, 4x4s, and camper van dual-battery builds
- Boats and marine installations
- Overlanding and off-grid setups
- Auxiliary/house battery charging systems
- Solar-plus-alternator hybrid charging
Technical Overview
| Specification | Detail |
|---|---|
| Model | RBC40D1S |
| System Voltage | 12V–12V |
| Maximum Output Current | 40A |
| Output Power | 616W |
| Solar Input Voltage | 10–30V DC |
| Output Voltage | 10–16V DC |
| Alternator Input | Traditional: 13.2–16V DC · Smart (Euro 6): 12–16V DC |
| Charging Efficiency | 93% |
| Battery Types | AGM, Gel, Flooded, LiFePO4 |
| Input Fuse Rating | 60A |
| Output Fuse Rating | 50A |
| Idle Power Consumption | <10mA |
| Grounding | Common Negative |
| Cooling | Heat sink (passive) |
| Enclosure Rating | IP31 |
| Operating Temperature | -20°C to 45°C (-4°F to 113°F) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Humidity | 0%–90% RH |
| Dimensions |
Additional information
| brands | SolarNova |
|---|---|
| Labels | 12V |
Shipping & Delivery
We offer FREE Delivery. In some cases, delivery fees are calculated during checkout, based on product value, size and distance from distribution point.
Warranty Information
At SolarNova, we stand by the quality of our products with an Unbelievable Guarantee! If you find a lower price on an identical stocked item, we won’t just match it—we’ll beat it! Plus, with our hassle-free returns and industry-leading warranties, you can shop with total confidence. Your comfort is our commitment!
Exclusive Partner Benefits
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.
Official Accredited Renogy Supplier
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.
You might also like
Sale
Original price was: R4981,80.R3238,17Current price is: R3238,17.
savings: R1743,63
Sale
Original price was: R5224,45.R3395,89Current price is: R3395,89.
savings: R1828,56
Sale
Original price was: R7983,30.R5189,15Current price is: R5189,15.
savings: R2794,15
Sale
Original price was: R8228,25.R5348,36Current price is: R5348,36.
savings: R2879,89
Sale Sold out
Original price was: R7771,70.R5051,60Current price is: R5051,60.
savings: R2720,10
Sale
Original price was: R3668,50.R2384,52Current price is: R2384,52.
savings: R1283,98
