---
product_id: 312086643
title: "Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator"
brand: "renogy"
price: "$1021"
currency: NZD
in_stock: true
reviews_count: 13
category: "Renogy"
url: https://www.desertcart.nz/products/312086643-renogy-12v-50a-dc-to-dc-battery-charger-with-mppt
store_origin: NZ
region: New Zealand
---

# 50A high current output Multi-chemistry battery compatibility 99% MPPT solar tracking efficiency Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator

**Brand:** renogy
**Price:** $1021
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your adventure smarter, faster, and safer with Renogy’s dual-charge dynamo!

## Quick Answers

- **What is this?** Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator by renogy
- **How much does it cost?** $1021 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/312086643-renogy-12v-50a-dc-to-dc-battery-charger-with-mppt)

## 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

- • **Fail-Safe Tech:** Advanced protections guard against over-voltage, reverse polarity & overheating—charge with confidence
- • **Compact Powerhouse:** Lightweight 3.13 lbs & sleek 9.6in design fits tight vehicle spaces effortlessly
- • **Next-Level Monitoring:** Bluetooth app & RS485 support keep you connected to battery health & system status in real-time
- • **Dual-Source Power Boost:** Simultaneously charges from alternator & solar for ultra-fast battery revival
- • **Smart Multi-Stage Charging:** Optimizes battery health with tailored charging profiles for Gel, AGM, Flooded & Lithium

## Overview

The Renogy 12V 50A DC to DC Battery Charger is a cutting-edge, multi-input charger designed for professional-grade battery management. Featuring up to 99% MPPT solar tracking efficiency and 94% conversion efficiency, it charges Gel, AGM, Flooded, and Lithium batteries via alternator and solar simultaneously. Its compact, lightweight design fits tight spaces, while comprehensive safety protections and smart multi-stage charging extend battery life. Bluetooth-enabled monitoring and a 2-year warranty make it a reliable choice for millennial professionals seeking seamless, efficient power solutions on the go.

## Description

Buy Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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

- 𝐌𝐮𝐥𝐭𝐢-𝐈𝐧𝐩𝐮𝐭 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 𝐌𝐏𝐏𝐓 𝐂𝐡𝐚𝐫𝐠𝐢𝐧𝐠: Renogy DC to DC Charger with unique dual charging options. This multi-stage, multi-input 12v car battery charger can charge the house battery from a starter battery linked to the car alternator or by connecting solar panels directly to the unit. Both ways can be charged at the same time to minimize charging time. With up to 𝟗𝟗% MPPT𝐭𝐫𝐚𝐜𝐤𝐢𝐧𝐠 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 𝐚𝐧𝐝 𝟗𝟒% 𝐜𝐨𝐧𝐯𝐞𝐫𝐭 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲, the smart battery charger can fully charge a 𝟏𝐤𝐖𝐡 battery within 𝟐 𝐡𝐫𝐬 with solar energy
- 𝐒𝐨𝐟𝐭 𝐒𝐭𝐚𝐫𝐭 𝐂𝐢𝐫𝐜𝐮𝐢𝐭 𝐃𝐞𝐬𝐢𝐠𝐧: The voltage at the input end of the 12v DC to DC charger will be 𝐫𝐢𝐬𝐢𝐧𝐠 𝐠𝐞𝐧𝐭𝐥𝐲 intending to avoid when the car alternator starts, the instantaneous overvoltage which may cause damage to the on-board battery charger or cause the starter battery to over-discharge and due to the vehicle can not start
- 𝐈𝐧𝐠𝐞𝐧𝐢𝐨𝐮𝐬 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 𝐃𝐞𝐬𝐢𝐠𝐧: Removable side covers prevent terminal contact and electrostatic damage during transport/use, ensuring st𝐬𝐭𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐚𝐧𝐝 𝐬𝐚𝐟𝐞𝐭𝐲 of your 12V 50A DC-DC Charger Lithium system. The partitioned all-in-one NEG- terminal integrates solar panels, starter battery, and house battery connections, eliminating misconnections for simple installation. Optimized for DC-DC Charger 12V with MPPT solar charging efficiency
- 𝐂𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞: Renogy 50A 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 battery charger has multiple intelligent protections including battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection, guaranteeing charging safety and protecting your SLD, Gel, AGM, Flooded, Lithium batteries
- 𝐋𝐢𝐠𝐡𝐭 & 𝐒𝐦𝐚𝐥𝐥, 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐛𝐞 𝐒𝐞𝐭 𝐔𝐩: Renogy 12v 50A DC to DC Charger with MPPT is multi-certified to 𝐂𝐄, 𝐅𝐂𝐂, 𝐚𝐧𝐝 𝐏𝐨𝐇𝐬. With only 9.6in in length, 5.7in in height, and 3.13lbs in weight, the DC to DC On-Board Charger is ready to be installed and adapt to any tiny narrow installation space, resolving your concern from limited room in your vehicle.Renogy also comes with a 𝟐-𝐲𝐞𝐚𝐫 𝐜𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲, providing robust assurance for your use
- 𝐃𝐢𝐯𝐞𝐫𝐬𝐢𝐟𝐢𝐞𝐝 𝐒𝐦𝐚𝐫𝐭 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠: 𝐍𝐞𝐯𝐞𝐫 𝐟𝐚𝐜𝐞 𝐝𝐞𝐚𝐝 𝐛𝐚𝐭𝐭𝐞𝐫𝐢𝐞𝐬 𝐚𝐠𝐚𝐢𝐧! Renogy 50A DC-DC charger uniquely revives stranded starter batteries using solar while parked. Monitor health/faults via App + BT-2 𝐬𝐨𝐥𝐝 𝐬𝐞𝐩𝐚𝐫𝐚𝐭𝐞𝐥𝐲 (phone/ dashboard) or RS485 fleet systems. Solar-first logic 𝐬𝐚𝐯𝐞𝐬 $𝟑𝟎𝟎+/year in fuel. Foolproof terminals enable 15-min installs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093BB5JKF |
| Best Sellers Rank | #24,870 in Automotive ( See Top 100 in Automotive ) #151 in Battery Chargers |
| Customer Reviews | 4.2 4.2 out of 5 stars (506) |
| Date First Available | April 23, 2021 |
| Item Weight | 3.13 pounds |
| Item model number | 12V 50A |
| Manufacturer | Renogy |
| Product Dimensions | 9.6 x 5.7 x 3 inches |

## Product Details

- **Brand:** Renogy
- **Color:** Charger for Solar Panel and Alternator
- **Item Weight:** 3.13 Pounds
- **Output Voltage:** 12 Volts (DC)
- **Product Dimensions:** 3"D x 9.6"W x 5.7"H

## Images

![Renogy 12V 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator - Image 1](https://m.media-amazon.com/images/I/61BpzMploAL.jpg)

## Questions & Answers

**Q: Solar input is still limited to 25v on these?  No upgrade planned?  So much for connecting a single 450 watt 48v panel.**
A: Another year later the input voltage is, yes, still 25 volt. I was hoping for a 50-75 volt model as well. My space can accommodate 1x 400 watt panel but not 2x 200 watt panels. Bummer.

**Q: what is the maximum current it draws from the alternator?.**
A: The victron device shows 49 amps charge without solar hooked to it . A few 1000 mile trips and its workin great . Keeps the battleborn batterys at 14.4.

**Q: The manual says: "no temperature compensation when charging lithium battery". Why?**
A: Lithium Batteries can be damaged if the temperature is too low (less than 32 degrees) when charging them. So you have to either have a heater (or a heat pad) to keep the batteries above temp, or you have to disconnect the charging circuit when the temperature is going to be below 32 degrees. That statement is just giving you a heads-up so that you are aware of the consequences that could occur

**Q: Can i use this in an rv trailer by connecting the dc side to the output on the trailers converter, instead of an alternator?**
A: Sure you can but won't get a large amount of amps (unless you have a higher amp inverter/Converter) to charge the system.. Just be sure to wire it without a smart alternator which is found on newer cars.

## 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 50A DC to DC Battery Charger with MPPT, On-Board Battery for Gel, AGM, Flooded and Lithium Batteries, Using Multi-Stage Charging, Solar Panel and Alternator
- 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

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*