---
product_id: 320556035
title: "Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A"
brand: "renogy"
price: "€ 364.67"
currency: EUR
in_stock: true
reviews_count: 7
category: "Renogy"
url: https://www.desertcart.nl/products/320556035-renogy-12v-40a-dc-to-dc-on-board-battery-charger
store_origin: NL
region: Netherlands
---

# Compatible with AGM, Gel, Flooded, Lithium 40A multi-stage charging Over-voltage & temperature protection Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A

**Brand:** renogy
**Price:** € 364.67
**Availability:** ✅ In Stock

## Summary

> 🔌 Charge smarter, drive farther — power your journey with confidence!

## Quick Answers

- **What is this?** Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A by renogy
- **How much does it cost?** € 364.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/320556035-renogy-12v-40a-dc-to-dc-on-board-battery-charger)

## Best For

- renogy enthusiasts

## Why This Product

- Trusted renogy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Advanced Safety Shield:** Built-in over-voltage, over-temperature, and reverse polarity protections keep your system safe and sound.
- • **Compact & Rugged Design:** Space-saving, durable build fits perfectly in tight vehicle spaces—ready for any adventure or workday.
- • **Starter Battery Guardian:** Smart detection prevents over-discharge, protecting your vehicle’s starter battery and generator longevity.
- • **Universal Battery Compatibility:** Seamlessly charges Flooded, Gel, AGM, and Lithium batteries—one charger for all your power needs.
- • **Powerful 40A Multi-Stage Charging:** Ensures your batteries reach 100% with Bulk, Boost, and Float phases for peak performance.

## Overview

The Renogy 12V 40A DC to DC On-Board Battery Charger delivers efficient multi-stage charging compatible with Flooded, Gel, AGM, and Lithium batteries. Designed for RVs, commercial vehicles, boats, and yachts, it features advanced safety protections and smart starter battery management in a compact, durable form factor.

## Description

Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A : desertcart.ae: Automotive

Review: I like the product - Was delivered on time and worked as charm. I liked it.
Review: Low efficiency. - Working as advertised but found out it’s low efficiency - while delivering 57A it takes 89A from alternator. Also there is no low voltage shut down so when car slow and stop on red light and RPM are low voltage drop below 11V and car (radio lights) not functioning correctly while it still sucks all these Amps.

## Features

- 【Compatible Multiple Battery Types】 Compatible with a multitude of alternator types, the Renogy 12V DC to DC charger offers correct charging for AGM, Flooded, Gel, and Lithium batteries.
- 【Smart Multi-Stage Charging】 The 40A DC to DC smart charger will charge your house batteries from the starter battery by 3-stage charging (Bulk, Boost, and Float), to make sure it optimally and automatically charges to 100%.
- 【Various Protections For Ultra Safety】 The Renogy on-board battery charger with high-quality offers Over-voltage Protection, Over-temperature Protection, and Reverse Polarity Protection to ensure the operation safety. It also isolates the input and output to prevent voltage transmission errors and interfere with house battery charging.
- 【Protect Your Starter Battery】The DC-DC battery charger is capable of identifying whether the generator is started, to prevent over-discharge of the starting battery and protect the generator.
- 【Reliable Quality & Easy Installation】The compact and robust design of the dc to dc charger makes it suitable for all conditions, and also resolves your concern about the limited room in your vehicle.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q4SVX3M |
| Best Sellers Rank | #11,995 in Automotive ( See Top 100 in Automotive ) #3,433 in Automobile Accessories |
| Brand | Renogy |
| Customer Reviews | 4.2 4.2 out of 5 stars (985) |
| Date First Available | 24 April 2019 |
| Exterior | Painted |
| Item Weight | 2.4 Kilograms |
| Item model number | 40A |
| Manufacturer | Renogy |
| Manufacturer Part Number | RNG-DCC |
| Model | 40A DC to DC On-board Battery Charger |
| Product Dimensions | 17.53 x 26.16 x 6.86 cm; 2.4 kg |

## Product Details

- **Brand:** Renogy
- **Colour:** Black
- **Item weight:** 5.3 Pounds
- **Output voltage:** 12 Volts (DC)
- **Product dimensions:** 17.5D x 26.1W x 6.9H centimeters

## Images

![Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A - Image 1](https://m.media-amazon.com/images/I/51vE1UCM0UL.jpg)
![Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A - Image 2](https://m.media-amazon.com/images/I/610rBaDv13L.jpg)
![Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A - Image 3](https://m.media-amazon.com/images/I/612ZGiS4NkL.jpg)
![Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A - Image 4](https://m.media-amazon.com/images/I/61BqiMYvGbL.jpg)
![Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A - Image 5](https://m.media-amazon.com/images/I/61r689quBBL.jpg)

## Questions & Answers

**Q: does it support solar?**
A: This one does not support solar. You can get the RBC50D1S-EU or use a separate pwm or mppt solar controller if you wish. Having a separate one will be more robust solution.

## Customer Reviews

### ⭐⭐⭐⭐ I like the product
*by B***E on 3 May 2024*

Was delivered on time and worked as charm. I liked it.

### ⭐⭐⭐ Low efficiency.
*by M***P on 19 January 2023*

Working as advertised but found out it’s low efficiency - while delivering 57A it takes 89A from alternator. Also there is no low voltage shut down so when car slow and stop on red light and RPM are low voltage drop below 11V and car (radio lights) not functioning correctly while it still sucks all these Amps.

### ⭐⭐⭐⭐⭐ Review
*by D***D on 25 November 2024*

All good

## Frequently Bought Together

- Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A
- Sanuke 4 AWG - 3/8" Battery Terminal Connectors, Copper Wire Lugs Assortment Battery Cable Ends with 3:1 Heat Shrink Tubing
- GearIT, 4 Gauge Wire, for Automotive Power/Ground, Battery Cable, Car Audio, RV, Amp, CCA Wire, Wire, Automotive Wire, Battery Cables, Amp Wiring Kit, (25 feet Each- Black/Red Translucent)

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*