---
product_id: 86240686
title: "REDARC Dual Input 25A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries"
brand: "redarc"
price: "€ 1030.89"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sk/products/86240686-redarc-dual-input-25a-in-vehicle-dc-to-dc-battery
store_origin: SK
region: Slovakia
---

# 25A dual input power MPPT solar optimization rugged all-terrain durability REDARC Dual Input 25A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries

**Brand:** redarc
**Price:** € 1030.89
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your journey, sustainably and relentlessly.

## Quick Answers

- **What is this?** REDARC Dual Input 25A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries by redarc
- **How much does it cost?** € 1030.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/86240686-redarc-dual-input-25a-in-vehicle-dc-to-dc-battery)

## Best For

- redarc enthusiasts

## Why This Product

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

## Key Features

- • **Dual Input Power Boost:** Charge simultaneously from alternator and solar panels for unstoppable energy flow.
- • **Solar-First Smart Charging:** MPPT tech prioritizes green power, slashing alternator load and maximizing efficiency.
- • **Trusted Aussie Engineering:** 45+ years of rugged reliability with a 2-year warranty and global support network.
- • **Built for Extreme Adventures:** Waterproof, dustproof, heat-resistant – engineered to thrive in the harshest off-road conditions.
- • **Universal Battery Compatibility:** Tailored multi-stage charging for Lithium, AGM, Gel, Lead Acid, Calcium & LiFePO4 batteries.

## Overview

The REDARC Dual Input 25A DC to DC Battery Charger combines vehicle alternator and solar panel inputs with advanced MPPT solar regulation to efficiently charge a wide range of 12V/24V batteries. Designed for extreme environments, it offers multi-stage charging for batteries from 75–200AH, ensuring reliable off-grid power for overlanding, RV, and off-road enthusiasts. Backed by 45 years of Australian engineering excellence and a 2-year warranty.

## Description

Dual Input 25A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries

## Features

- Dual Input Charger for On-the-Go Power: This in-vehicle DC battery charger keeps your secondary battery fully charged while driving. Dual inputs let you charge from your vehicle alternator and solar panels at once for reliable off-grid energy
- Solar Ready with MPPT Efficiency: Harness clean energy wherever you travel. Built-in Maximum Power Point Tracking (MPPT) optimizes solar output and Green Power Priority selects solar first, reducing alternator load and maximizing charging efficiency
- Multi-Stage Charging for Any Battery: Portable and compatible with AGM, GEL, standard lead acid, calcium, and LiFePO4 lithium batteries. The intelligent charging profile delivers efficient power for battery banks sized 75–200AH in most common setups
- Built Tough: Engineered for overlanding, RVing, and off-road use. The dual input battery charger withstands deep water crossings, extreme heat up to 176 F, dust, and vibration. Fully sealed electronics deliver reliability in every environment
- Confidence for The Long Haul: Designed and tested in the Australian Outback, REDARC automotive products are trusted for over 45 years. This unit is backed by a 2-year limited warranty and global support network

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 0.01 Ounces |
| Item Dimensions D x W x H | 4.92"D x 10.24"W x 1.89"H |
| Color | Green |
| Energy Specifications Met | FCC |
| Current Rating | 25 Amps |
| Input Voltage | 12 Volts |
| Output Voltage | 12 Volts (DC) |

## Product Details

- **Brand:** REDARC
- **Color:** Black
- **Product Dimensions:** 4.92"D x 10.24"W x 1.89"H
- **Item Weight:** 0.01 Ounces
- **Output Voltage:** 12 Volts (DC)

## Images

![REDARC Dual Input 25A in-Vehicle DC to DC Battery Charger with MPPT Solar Regulator, Green Power Priority, 12V/24V Compatible, for Lithium, AGM, Gel, Lead Acid, Calcium, LiFePO4 Batteries - Image 1](https://m.media-amazon.com/images/I/71JHLbU9HzL.jpg)

## Available Options

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

## Questions & Answers

**Q: can this unit be connected to the vehicle alternator to charge 2 batteries. And where can I get more information to read about it ?**
A: The alternator should charge the original vehicle battery, then this unit is connected to get power from the original battery and used to charge a second, back-up battery. The backup battery may have another identical 12v battery connected to it in parallel. The identical battery should be of the same age, brand, size, etc. You can find the owners/installation manual online.

**Q: What will happen if my main battery is a 74ah and the auxiliary is a 150ah battery. i’m planning to install the bcdc redarc charger 25a**
A: Hi Mohammed,
Thanks for your message.

The BCDC operates independently to charge the Auxiliary 150AH battery, so is not critical on the capacity of the Main battery. It is essentially drawing from the Alternator of the vehicle anyway, so capacity is not a big issue. This will work fine with this 25A BCDC size too; perfect for your 150AH battery.

Best regards,
REDARC.

**Q: Necesito comprar algun tipo de relay u otro accesorio, aparte de fusible**
A: Hi there,
Thanks for your message.

You will not need a relay for this unit, it does all the switching internally. A 40A MIDI type fuse is required however and suitably rated cable to connect the unit up to the Batteries and Solar panel.

Best regards,
REDARC

**Q: Can this be used to charge a Goal Zero or Jackery type lithium power bank?**
A: Goal Zero/Jackery type power banks have internal charging normally. If it has a 12V input, you don't really need an external charger, just a 12v supply from your car, solar controller/converter etc.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable
*by F***H on February 22, 2025*

I have had this installed on my 4Runner since 2019. I use it for alternator and solar charging via a panel permanently installed on my roof rack. I have never had an issue with it overheating or any other problem. My two auxiliary batteries, used for Snomaster fridge/freezer and CPAP machine, remain in great shape due to this unit. I highly recommend this appliance.

### ⭐⭐⭐⭐⭐ Exceeded my expectations
*by D***G on September 16, 2020*

It's rare when a product exceeds expectations, but this blew me away. It's built like a tank. Overdesigned, with huge cables. The engineers that designed this put a lot of passion into the design, and it shows. Over-voltage shut off, under-voltage shut off. Massive cables, and delivers the amps.I'm an electrical engineer, and a 'wire guy', and this charger is amazing.I wired this (orange-green wires connected) for LiFePO4 battery.On the input side my truck supplied approximately 12.5V and up to 30A drawn from the system battery. On the output, a clean 14.4V and full rated 25A.Once I shut off my truck, the truck battery draw stops, and I'm running on the secondary batteries I charged. Exactly as I wanted.This is made in Australia, and I can say I'm super impressed. I'm old enough to remember when "made in America" meant something - products that were built rugged and lasted forever. This charger has the same feel. Cables larger than they need to be. Big heat sink. No doubt this will last and last. I anticipate many happy years with this charger.After years of buying marginal products from overseas that barely deliver, it's refreshing to find one that inspires as much confidence as this. A work of engineering art. Very much looking forward to using it.

### ⭐⭐⭐⭐⭐ Excellent addition to my 4runner
*by Y***W on August 12, 2024*

Awesome product, charges my second battery (Optima) nicely. Took a 4 day trip off grid with no problems. Never ran short of power. Only drove my vehicle 1-2 hours a day. Quickly charged up my system that powers the refrigerator. Couldn’t be happier.

## Frequently Bought Together

- REDARC 25A in-Vehicle DC to DC Charger with MPPT — Dual Input for Solar & Alternator Charging, Green Power Priority - 12 or 24V Battery Charger Suitable with AGM, Gel, Lithium LiFePO4 Batteries
- Blue Sea Systems 5025 ST Blade Fuse Block 6 Circuit with Ground and Cover
- Blue Sea Systems 7182 285-Series Circuit Breaker, Surface Mount, 40A

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**Shop now:** [https://www.desertcart.sk/products/86240686-redarc-dual-input-25a-in-vehicle-dc-to-dc-battery](https://www.desertcart.sk/products/86240686-redarc-dual-input-25a-in-vehicle-dc-to-dc-battery)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-21*