DCDC Battery Chargers

iTechworld 12v to 24v DCDC battery charger
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  • iTECHDCDC60 | DCDC and MPPT Battery Charger | 12V/24V 60A - iTechworld

    iTECHDCDC60
    DCDC and MPPT Battery Charger
    12V/24V 60A

    5.0
    Rated 5.0 out of 5 stars
    6 Reviews
    • Advanced charging algorithm
    • 48V maximum input voltage
    $499
    $499
    $799
  • iTECHDCDC40 | DCDC and MPPT Battery Charger | 12V/24V 40A - iTechworld

    iTECHDCDC40
    DCDC and MPPT Battery Charger
    12V/24V 40A

    4.8
    Rated 4.8 out of 5 stars
    242 Reviews
    • Advanced charging algorithm
    • IP67 water and dustproof
    $333
    $333
    $399
  • iTECHDCDC25 12V/24V 25A DCDC & MPPT Battery Charger - iTechworld

    iTECHDCDC25
    DCDC and MPPT Battery Charger
    12V/24V 25A

    4.8
    Rated 4.8 out of 5 stars
    160 Reviews
    • Advanced charging algorithm
    • IP67 water and dustproof
    $249
    $249
    $299
  • GoFurther Battery Box Power Station with integrated iTECHDCDC25 - iTechworld

    GoFurther
    Battery Box
    with Integrated iTECHDCDC25

    4.9
    Rated 4.9 out of 5 stars
    106 Reviews
    • Compatible with Lithium, Lead-acid, AGM, GEL, Calcium Batteries
    • Integrated DCDC25A Charger
    $399
    $399
    $595
  • iTechworld | Premium Control Hub | with 40A DCDC Charger and 500A Shunt - iTechworld

    iTechworld
    Premium Control Hub
    with 40A DCDC Charger and 500A Shunt

    4.9
    Rated 4.9 out of 5 stars
    37 Reviews
    • Integrated 40A DCDC Charger
    • Advanced monitor and shunt
    $599
    $599
    $699
  • iTechworld 12V Control Hub With 25A DCDC Charger iTECHDCDC25 - iTechworld

    iTechworld
    Control Hub
    with 25A DCDC Charger

    4.3
    Rated 4.3 out of 5 stars
    12 Reviews
    • Integrated 25A DCDC Charger
    • Power up to 15 appliances
    From $599
    From $599
    $599
    View Product
  • iTECHDCDC10 | DCDC Battery Charger | 12V 10A - iTechworld

    iTECHDCDC10
    DCDC Battery Charger
    12V 10A

    4.9
    Rated 4.9 out of 5 stars
    24 Reviews
    • Keep your dual-battery system charged
    • Custom charging algorithm
    $149
    $149
    $150
  • The iTechworld Solar Panel Trickle Charger 15W is a rectangular black panel with four corner mounting holes and red/black wires at the top, perfect for 12V/24V battery maintenance, shown on a white background.

    iTechworld
    Solar Panel Trickle Charger
    15W

    • 0.83A Max output
    • Suitable for 12V/24V systems
    $99
    $99

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DCDC Battery Chargers

Australian-Designed DC-DC Chargers to Power Your Next Adventure

iTechworld DC-DC battery chargers are made to go the distance. Built tough for Australian conditions, they’re your go-to solution for clean, controlled charging whether you're out bush, on the road, or on the water. Our units take the voltage from your vehicle’s alternator or solar system and convert it to the optimal level for safely charging your auxiliary battery. That includes lithium setups too.

Unlike basic isolators or unregulated solar inputs, our DC-DC chargers are all about precise control and stable power. It extends the life of your battery meaning that your trip can be powered the right way. Whether it’s a 12v battery charger or one of our Premium Control Hubs, we design and test all of our products right here in Australia. That means, come rain, sun, dust, or wind, you get power you can count on. Shop now and trust the power experts to get it right. 

Charge Up Your Next Adventure

Whether you’re building a dual battery system in a 4WD, running multiple banks in a caravan, or setting up power for marine and off-grid use, iTechworld’s DC-DC battery chargers keep your system going. Here’s what they can do: 

  • Converts Alternator Output into Optimised Charging: True multi-stage charging means you enjoy extended battery lifespan alongside consistent performance.

  • Lithium-Optimised Charging: Our units are compatible with lithium, AGM, and lead-acid batteries for complete flexibility, whenever the road takes you.

  • Dual Input with Intelligent Prioritisation: Quickly jump between alternator and solar input to reduce engine load and keep things running efficiently. 

  • Safe and Smart: Intelligent charging profiles, thermal protection, and built-in isolation features give your starter and auxiliary batteries the protection they need.

  • User-Friendly Status Display: Real-time LED and digital indicators show voltage, current, and status at a glance.

  • Australian-Designed, Built for Harsh Environments: Developed and tested right here, our DC to DC chargers are made for Aussie red dust, heat, and salt air.

  • Reliable for Any Setup: Use your dual battery system in 4WDs, caravans, campervans, boats, and emergency response rigs. However you need to use yours, you can do it with iTechworld. 

  • All Aussie Support: The Help you get from our experts will always be from Australia. No offshore call centres. No scripts.

FAQs

What is a DC-DC charger and how does it work?

A DC-DC charger takes the voltage from your vehicle’s alternator or solar panels and converts it into a stable charging voltage suitable for auxiliary batteries. It regulates charge levels to protect your batteries and make for all-round better charging.

Do I need a DC-DC charger for a dual battery setup?

Yes, especially for modern vehicles with smart alternators. A DC-DC battery charger makes sure your second battery charges fully, safely, and consistently, regardless of any changes in your alternator.

Is a DC-DC charger necessary for lithium batteries?

Absolutely. Lithium batteries require precise charge profiles, which DC-DC battery chargers deliver. Without it, you risk undercharging or damaging your lithium battery.

What's the difference between a 20A and a 40A DC-DC charger?

The main difference is output current. A 40A charger delivers double the current of a 20A, charging larger batteries faster. Choose based on your alternator’s capacity and the size of your battery bank.

Do I need a DC-DC charger if I have solar panels?

Yes. Our DC to DC battery chargers include an MPPT solar regulator, meaning they can manage input from both alternator and solar for optimal charging.

Does a DC-DC charger isolate the main battery?

Yes. It prevents the auxiliary battery from draining your starter battery, especially when your engine’s off.

How do I determine the right size DC-DC charger for my setup?

This all comes down to your battery size and power usage. Larger systems benefit from 40A models, while smaller or less demanding setups may only need 20A.

Can I use a DC-DC charger with AGM or lead-acid batteries?

Yes. iTechworld DC chargers can work with AGM, lead-acid, and lithium battery types. All you need to do is to set the correct profile.

What's the advantage of a DC-DC charger over a simple battery isolator?

Unlike isolators, DC-DC chargers regulate and optimise charge voltage and current, which is especially critical for lithium batteries and smart alternators.

Is a DC-DC charger worth the investment?

If you're relying on off-grid power or want to protect your batteries long-term, absolutely. It ensures reliable, full charging, maximising battery performance and lifespan.

What’s the difference between DC-DC and AC-DC chargers?

DC-DC chargers draw power from a vehicle’s alternator or solar panels to charge auxiliary batteries while driving or off-grid. In contrast, AC-DC battery chargers plug into mains power (like a 240V wall socket) and are used when you're at home or a powered campsite. Each serves a different purpose depending on your setup and access to power sources.