---
product_id: 317954116
title: "DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine"
brand: "renogy"
price: "€ 348.18"
currency: EUR
in_stock: true
reviews_count: 13
category: "Renogy"
url: https://www.desertcart.nl/products/317954116-dc-to-dc-charger-with-mppt-12v-30a-multi-stage
store_origin: NL
region: Netherlands
---

# 30A multi-stage charging Bluetooth & app smart monitoring Dual-source solar + alternator input DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine

**Brand:** renogy
**Price:** € 348.18
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay charged, stay unstoppable — power your adventures smarter!

## Quick Answers

- **What is this?** DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine by renogy
- **How much does it cost?** € 348.18 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/317954116-dc-to-dc-charger-with-mppt-12v-30a-multi-stage)

## 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

- • **Compact Yet Powerful:** Lightweight and space-saving design fits tight spots without compromising on 30A charging power.
- • **Marine-Grade Durability:** Built tough with 8 key protections to thrive in harsh environments—perfect for RVs, boats, and work vehicles.
- • **Real-Time Remote Control:** Monitor voltage, temperature, and faults via Bluetooth and Renogy’s app for total peace of mind on the go.
- • **Smart Multi-Stage Charging:** MPPT tech with bulk, boost, and float phases ensures 100% optimized battery health and longevity.
- • **Maximize Your Off-Grid Power:** Dual-source charging from solar panels and alternators keeps your batteries topped up wherever you roam.

## Overview

The Renogy 12V 30A DC to DC Charger with MPPT is a compact, multi-stage battery charger designed for dual-source input from solar panels and alternators. Compatible with multiple battery chemistries including lithium, AGM, gel, and flooded, it delivers efficient, smart charging with built-in protections and remote monitoring capabilities via Bluetooth and app integration. Ideal for RVs, marine, and automotive use, it ensures maximum uptime and battery longevity in demanding environments.

## Description

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.

Review: Great features, good price - I rarely leave reviews and in most cases only when I am really annoyed by a product. But this unit is really great at a very resonable price! Works very well, is compact, and has many great features that only a combined dual (solar and alternator) charger can provide. For example charging my starter battery when the solar battery is full. I think I had a small parasitic drain on the van which caused the battery to be empty after a few weeks of not driving. With the renogy charger that is no longer a problem. And of course the main function to support dual charging is also great. I specifically used the smaller version (30A) to limit stress on the alternator . That is probably the only missing feature I can think of: configure the max draw from the alternator in the app. But with the 30A version that is not really a problem. And I anyway only have 400W of solar, so 30A is fine.
Review: Awesome charger! - I have a cargo trailer that I use for work with a 2000 watt inverter to run power tool chargers & lights in the trailer. I have a 200 watt solar array connected to the solar input as well as the vehicle smart alternator input. The (2) 100 Ah AGM batteries stay charged through this device to where I never have to plug in my trailer to the house to charge my batteries. What I like about this product is if it’s cloudy and I’m using power then the vehicle will charge the batteries as I’m driving from job to job or I can start the truck for a few minutes and get a charge. This device also prevents voltage feeding back to the vehicle from my trailer batteries as it would if it were connected straight to the battery output from the truck. It also prevents overcharging of the batteries, extending the life. Lastly, the ability to change battery types on this device makes it great to use for different battery chemical types. The price is a little high but it does exactly what I need in just one device.

## Features

- 𝐃𝐮𝐚𝐥-𝐒𝐨𝐮𝐫𝐜𝐞 Charging for 𝐌𝐚𝐱𝐢𝐦𝐮𝐦 𝐔𝐩𝐭𝐢𝐦𝐞: Charge service or start batteries simultaneously from solar panels and alternators! Renogy DC to DC charger with MPPT prioritizes solar energy when both inputs are active, reducing fuel costs. Ideal for RV, marine, and car dual-battery systems, 30A battery charger supports lead-acid, lithium, AGM, gel, and flooded batteries.𝐍𝐞𝐯𝐞𝐫 𝐰𝐨𝐫𝐫𝐲 𝐚𝐛𝐨𝐮𝐭 𝐝𝐞𝐚𝐝 𝐛𝐚𝐭𝐭𝐞𝐫𝐢𝐞𝐬 𝐚𝐠𝐚𝐢𝐧
- 𝐌𝐏𝐏𝐓 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 & 𝟑-𝐒𝐭𝐚𝐠𝐞 Smart Charging: With Built-in Maximum Power Point 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%
- 𝐔𝐥𝐭𝐢𝐦𝐚𝐭𝐞 Marine Charger: Renogy DC-DC On-Board Battery Charger. Robust dc to dc charger 12v (24V compatible) delivers 𝟖 𝐊𝐞𝐲 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧: Isolation, Over-Voltage/Current/Temp, Reverse Polarity (Solar/Alt), Reverse Current & Overheat. Uniquely solar-charges start batteries during low voltage. Perfect dc to dc charger 12v lifepo4 for AGM/GEL/Flooded. Seamless with traditional/smart alternators. 𝐀𝐥𝐥-𝐢𝐧-𝐨𝐧𝐞 𝐦𝐚𝐫𝐢𝐧𝐞-𝐠𝐫𝐚𝐝𝐞 𝐩𝐨𝐰𝐞𝐫 𝐟𝐨𝐫 𝐡𝐚𝐫𝐬𝐡 𝐞𝐧𝐯𝐢𝐫𝐨𝐧𝐦𝐞𝐧𝐭𝐬
- 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 Car Battery Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in you vehicle
- 𝐌𝐨𝐝𝐛𝐮𝐬 𝐒𝐦𝐚𝐫𝐭 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠 𝐄𝐜𝐨𝐬𝐲𝐬𝐭𝐞𝐦: Renogy 12V 30A DC Charger compatible with Renogy One/RMS-DCDC screens & DC Home App. Real-time tracking of voltage, temperature, and faults via RS485. Bluetooth ready with 𝐁𝐓-𝟐 𝐦𝐨𝐝𝐮𝐥𝐞 (sold separately). Recommended to match with 𝟒𝟎𝐀 𝐀𝐍𝐋 𝐅𝐮𝐬𝐞(sold separately) protect your controller, wire, and battery from overcurrent

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093BB3PCV |
| Best Sellers Rank | #14,865 in Automotive ( See Top 100 in Automotive ) #89 in Battery Chargers |
| Customer Reviews | 4.2 4.2 out of 5 stars (517) |
| Date First Available | April 23, 2021 |
| Item Weight | 3.13 pounds |
| Item model number | 12V 30A DC to DC Charger with MPPT |
| Manufacturer | Renogy |
| Product Dimensions | 9.2 x 5.8 x 3 inches |

## Product Details

- **Brand:** Renogy
- **Input Voltage:** 12 Volts
- **Item Weight:** 3.1 Pounds
- **Output Voltage:** 12 Volts (DC)
- **Product Dimensions:** 9.6"D x 3"W x 5.7"H

## Images

![DC to DC Charger with MPPT 12V 30A Multi-Stage Charging - Smart On-Board Battery Charger for Solar/Alternator Input - Charges Lithium AGM Gel Flooded Batteries in RVs Cars Marine - Image 1](https://m.media-amazon.com/images/I/51W5PbJH4LL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great features, good price
*by J***U on December 22, 2025*

I rarely leave reviews and in most cases only when I am really annoyed by a product. But this unit is really great at a very resonable price! Works very well, is compact, and has many great features that only a combined dual (solar and alternator) charger can provide. For example charging my starter battery when the solar battery is full. I think I had a small parasitic drain on the van which caused the battery to be empty after a few weeks of not driving. With the renogy charger that is no longer a problem. And of course the main function to support dual charging is also great. I specifically used the smaller version (30A) to limit stress on the alternator . That is probably the only missing feature I can think of: configure the max draw from the alternator in the app. But with the 30A version that is not really a problem. And I anyway only have 400W of solar, so 30A is fine.

### ⭐⭐⭐⭐⭐ Awesome charger!
*by J***. on September 14, 2024*

I have a cargo trailer that I use for work with a 2000 watt inverter to run power tool chargers & lights in the trailer. I have a 200 watt solar array connected to the solar input as well as the vehicle smart alternator input. The (2) 100 Ah AGM batteries stay charged through this device to where I never have to plug in my trailer to the house to charge my batteries. What I like about this product is if it’s cloudy and I’m using power then the vehicle will charge the batteries as I’m driving from job to job or I can start the truck for a few minutes and get a charge. This device also prevents voltage feeding back to the vehicle from my trailer batteries as it would if it were connected straight to the battery output from the truck. It also prevents overcharging of the batteries, extending the life. Lastly, the ability to change battery types on this device makes it great to use for different battery chemical types. The price is a little high but it does exactly what I need in just one device.

### ⭐⭐⭐⭐⭐ Running strong
*by N***S on September 21, 2025*

I bought this to replace my previous model Renogy (that I accidentally burned up by overpowering it with solar) and its been running strong since June. I like having both the mppt and the alternator charging in one unit especially with the size constraints of my battery box. Pretty easy to install, a lot more fault tolerant than the previous model and I'm happy with it.

## Frequently Bought Together

- Renogy 12V 30A DC to DC Charger with MPPT, On-Board Battery Charger for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Charger for Solar Panel and Alternator, in RV, Car, Marine
- Renogy BT-2 Bluetooth Module RJ45 Communication Port Wirelessly Monitor Real-time Insight Precise Control, Compatible Solar Charge Controllers, Battery Charger, Inverter, BT-2 RS485
- Renogy 500A Battery Monitor with Shunt, High and Low Voltage Programmable Alarm, Range 10V-120V up to 500A, 20ft Shielded Cable, Compatible 12V Lithium Sealed, Gel, Flooded Batteries,Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/317954116-dc-to-dc-charger-with-mppt-12v-30a-multi-stage](https://www.desertcart.nl/products/317954116-dc-to-dc-charger-with-mppt-12v-30a-multi-stage)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*