We supply a range of batteries for cars, trucks and buses.

12 & 24 Volt Systems in Innisfail

Electrical Work That Last

At Advanced Auto Electrics & Mechanical, we offer a full range of auto-electrical work from 12- and 24-volt to suit all makes and models of cars, trucks, boats, caravans and more. Our team can help you complete your project, whether you need electrical work for your car, truck, boat, caravan or other vehicle. We also offer a fitting service to ensure that your new battery, radio, portable fridge, fishing radar or UHF is installed correctly.


We stock a wide range of batteries from leading brands, so you can be sure that you're getting a quality product. 


To find out more about our automotive batteries, call us on (07) 4061 1998 or drop into our workshop. Based in Innisfail, we also service Mission Beach, Babinda and Tully.

Does Your Vehicle Struggle To Start?

When your vehicle struggles to start, sometimes replacing the battery isn't the solution! But not to worry — we offer a full range of auto electrical services to have your vehicle purring like a Persian.


We offer the following solutions:

  • Auto electrical repairs
  • Starter motor replacements
  • Alternator replacements
  • Wiring repairs & loom upgrades
  • Ignition system maintenance
  • Voltage regulator checks


Rest assured, if it’s the battery causing the issue, we’ll provide a quick and easy replacement. If it’s something else, we'll diagnose the problem and provide you with the solution! 


Book your inspection today.

Frequently Asked Questions

  • What is the difference between 12 volt and 24 volt systems?

    A 12 volt system is commonly used in passenger vehicles and light 4WDs, while 24 volt systems are typically found in heavy vehicles, trucks and commercial equipment. The higher voltage supports larger electrical loads and longer cable runs, improving efficiency for demanding applications.

  • Can 12V and 24V accessories be mixed?

    12V and 24V components cannot be directly mixed without proper converters or voltage reducers. Installing the wrong accessory can cause damage to wiring, electronics or batteries. Professional assessment ensures compatibility, correct load management and safe integration within the vehicle’s electrical system.

  • Why does my 12/24 volt system keep draining the battery?

    Battery drain can result from faulty wiring, parasitic draw, incorrect accessory installation or a failing battery. Testing with diagnostic tools helps identify excessive current draw, charging faults or regulator issues. Addressing the root cause prevents repeated flat batteries and protects electrical components.

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