Enerdrive EN3DC40 12V 40A+ DC2DC Battery Charger front view with digital display

Enerdrive 12V 40A+ DC-DC Battery Charger EN3DC40+

$550.00
Sale price  $550.00 Regular price  $599.00
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Enerdrive EN3DC40 12V 40A+ DC2DC Battery Charger front view with digital display

Enerdrive 12V 40A+ DC-DC Battery Charger EN3DC40+

$550.00
Sale price  $550.00 Regular price  $599.00
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Australian Owned and Operated
Australian Owned and Operated
Manufacturer Warranty Backed
Manufacturer Warranty Backed

High-Output 12V 40A DC-DC Charging for Dual Battery Systems

The Enerdrive EN3DC40+ is a professional-grade 12V 40A DC-DC battery charger engineered for demanding dual battery setups. Whether you're running a 4WD on extended off-road trips, a fully-loaded caravan, or a remote off-grid installation, this unit delivers intelligent multi-stage charging to keep your auxiliary battery in peak condition — even while your vehicle is on the move.

Unlike basic isolators, the EN3DC40+ uses a true DC-DC conversion process to regulate and optimise the charge voltage delivered to your auxiliary battery, regardless of fluctuations from the alternator. It also features a built-in MPPT solar input, allowing you to combine alternator and solar charging in a single compact unit — ideal for extended touring.

Key Features

  • 40A DC-DC charging — high-output charging for 12V auxiliary battery systems
  • Built-in MPPT solar input — combine alternator and solar charging in one unit
  • Digital display — real-time monitoring of input voltage, output voltage, and charge current
  • Multi-stage, multi-source charging algorithm — bulk, absorption, and float stages for optimal battery health and longevity
  • Wide battery compatibility — supports AGM, Gel, Calcium, Wet/Flooded, and LiFePO4 lithium batteries
  • Smart alternator compatible — works with Euro 5/6 and modern variable-voltage alternators
  • Ignition-controlled operation — automatically starts and stops charging with the vehicle ignition
  • Silent mode — reduces fan noise for overnight or campsite use
  • Compact and robust enclosure — designed for permanent vehicle and fixed installations in harsh environments
  • Reverse polarity and over-temperature protection — built-in safeguards for reliable long-term operation

Technical Specifications

  • Input Voltage: 10–32V DC
  • Output Voltage: 12V (programmable per battery type)
  • Output Current: 40A
  • Solar Input: MPPT, up to 25V open circuit
  • Operating Temperature: -20°C to +60°C
  • Certifications: CE, RCM

Ideal For

  • 4WDs and touring vehicles on extended off-road trips
  • Caravans and campervans with high power demands
  • Marine and boat applications
  • Off-grid cabins and remote power systems
  • Installations requiring LiFePO4 lithium battery charging

In the Box

  • Enerdrive EN3DC40+ DC-DC Charger
  • Mounting hardware
  • User manual

Download User Manual

Smart Alternator Setup Guide

Specifications & Installation Notice

Before purchasing, please ensure this product is suitable for your specific 12V or 24V electrical system. Carefully review the product specifications, including voltage, current (amperage), battery chemistry compatibility, power requirements and recommended applications, to confirm it is appropriate for your installation. Selecting equipment that matches your existing electrical setup is essential for safe, reliable and efficient operation.

For your safety and to ensure optimal performance, 1224 strongly recommends that equipment is installed by a qualified auto electrician or appropriately licensed professional. Improper installation can result in damage to your vehicle, caravan, motorhome, marine vessel, work vehicle or off-grid solar system, and may pose serious safety risks including fire, electrical shock, or equipment failure.

If you're unsure whether this product is compatible with your setup, please contact the 1224 team before placing your order. We're always happy to help you choose the right solution for your application.

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