---
product_id: 337307916
title: "Dual Input 25A in-Vehicle DC Battery Charger"
brand: "redarc"
price: "A$1265"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/337307916-dual-input-25a-in-vehicle-dc-battery-charger
store_origin: AU
region: Australia
---

# 25A dual input power Heat, water & dust resistant Simultaneous solar + DC charging Dual Input 25A in-Vehicle DC Battery Charger

**Brand:** redarc
**Price:** A$1265
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge smarter, adventure harder — never get caught powerless!

## Quick Answers

- **What is this?** Dual Input 25A in-Vehicle DC Battery Charger by redarc
- **How much does it cost?** A$1265 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/337307916-dual-input-25a-in-vehicle-dc-battery-charger)

## 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

- • **Solar-First Efficiency:** MPPT tech prioritizes solar energy, reducing alternator strain and maximizing green power.
- • **Power Up Anywhere, Anytime:** Dual input 25A charger ensures your auxiliary battery hits 100% no matter the drive.
- • **Built to Brave the Elements:** Potted design resists heat, water, and dust for reliable performance in harsh conditions.
- • **Universal Battery Compatibility:** Supports AGM, GEL, lead acid, calcium, and LiFePO4 batteries from 75AH to 200AH.
- • **Seamless Integration with Any Vehicle:** Optimized for both 12V and 24V systems, smart or standard alternators included.

## Overview

The REDARC Dual Input 25A in-vehicle DC battery charger delivers robust, uninterrupted power by simultaneously harnessing solar and alternator energy. Engineered for extreme conditions with heat, water, and dust resistance, it supports a wide range of battery types and vehicle systems, ensuring your auxiliary batteries stay fully charged on every journey.

## Description

Dual Input 25A in-Vehicle DC Battery Charger

## Features

- Uninterrupted Energy for the Road - Never run low again! The REDARC 25A in-vehicle 12V DC to DC charger ensures your auxiliary and secondary batteries reach 100%. Built for high-performance engine bay installations, it’s potted to thrive against heat, water, and dust, keeping your devices and gear powered for every adventure!
- Optimized for 12V and 24V Systems - Whatever your vehicle’s alternator type, the REDARC 25A DC-DC car battery charger has you covered! Whether it’s standard or smart, this 12 volt battery charger adapts to ensure fast, reliable charging, keeping your power flowing and adventures uninterrupted
- Simultaneous Solar & DC Charging - Maximize your energy! The REDARC 25A 12v battery charger powers your batteries from both solar and the alternator at the same time. With MPPT technology and Green Power Priority, solar charging takes the lead, reducing the load on your alternator and boosting efficiency
- Unmatched Battery Flexibility - Whether you’re using AGM, GEL, lead acid, calcium, or LiFePO4, the REDARC 12 volt battery charger handles it all! Perfect for battery banks from 75AH to 200AH, providing the flexibility and efficiency you need for every adventure
- Built for Adventure - With over 45 years of experience, REDARC designs rugged electronics and truck accessories for the toughest conditions. Their power management, solar, battery chargers, and brake control solutions are trusted by adventurers and industries alike, offering unmatched durability and support

## 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
- **Colour:** Black
- **Product dimensions:** 12.5D x 26W x 4.8H centimeters
- **Item weight:** 0.01 Ounces
- **Output voltage:** 12 Volts (DC)

## Images

![Dual Input 25A in-Vehicle DC Battery Charger - Image 1](https://m.media-amazon.com/images/I/71JHLbU9HzL.jpg)
![Dual Input 25A in-Vehicle DC Battery Charger - Image 2](https://m.media-amazon.com/images/I/81xXSyCaQYL.jpg)
![Dual Input 25A in-Vehicle DC Battery Charger - Image 3](https://m.media-amazon.com/images/I/919S8eiNYiL.jpg)
![Dual Input 25A in-Vehicle DC Battery Charger - Image 4](https://m.media-amazon.com/images/I/918DFgGK7vL.jpg)
![Dual Input 25A in-Vehicle DC Battery Charger - Image 5](https://m.media-amazon.com/images/I/81sfGmXUc0L.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.

## 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.com.au/products/337307916-dual-input-25a-in-vehicle-dc-battery-charger](https://www.desertcart.com.au/products/337307916-dual-input-25a-in-vehicle-dc-battery-charger)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-16*