Dual Battery Isolators, DC-DC Chargers & bATTERY tRAYS

Dual battery systems are very common among 4x4 vehicles. Long gone are the days of having to manually switch between the main and auxiliary battery.
Whether your vehicle runs a traditional charging system or a low voltage/variable type system, we have you covered.

We can also supply Hulk & Projecta vehicle specific battery trays as well as universal units.

Below are our most commonly used products.

Redarc SmartStart Dual Battery Isolator (SBI-12)

This has been one of our most commonly used battery isolators. It works perfectly with traditional type charging systems and has a very handy "emergency override" as a self jump-start feature (when wired to vehicle correctly), which can be wired to an aftermarket momentary on switch.

This unit has a rating of 100amp continuous and 400amp peak (maximum in-rush rating).

This unit is fully automatic, allowing the main battery to charge, then (when reaching a predetermined voltage) allows the main and auxiliary batteries to charge simultaneously.

Dual sense, 24volt and high output versions also available.

Ask us for more information on this great product.

Intervolt Electronic Battery Isolator - EBI Pro (EBI12100A)

The Intervolt EBI Pro is similar to the Redarc SBI but is a programmable solid state unit. This means that there are no moving parts, and cut in/out voltages can be programmed in 0.1 volt increments to suit your requirements.

  • Cut in voltage range : 9.2 - 16 volts
  • Cut out voltage range : 9 - 15.8 volts

This unit has a rating of 100amp continuous and 500amp peak (maximum in-rush rating). This is also a dual sense unit.

We can combine the EBI Pro switch (EBI12RS) for overriding/self jump startingand it will also illuminate when batteries are connected. 

Thunder Programmable Dual Battery Isolator (TDR15100)

The Thunder dual battery isolator is very similar to the EBI pro (above), is programmable and is also solid state.

  • Connect voltage range : 9.2 - 16 volts
  • Isolate voltage range : 9 - 15.8 volts
  • Visual alarm voltage range : 9-15.6 volts

This unit has a rating of 100amp continuous and 400amp peak (maximum in-rush rating). This is also a dual sense unit.

This isolator also has a emergency override which can be used with a aftermarket momentary on switch. Also optional is an indicator light so you can visually know when your batteries are connected. 

Intervolt DC Charger (DCC1225ACK-RP)

When your vehicle has a variable voltage type charging system (or even traditional), this is the unit for you.

It is a true 25amp DC charger to charge your auxillary battery. It also boasts a built in solar controller (regulator - 250watts nominal, 300watts peak) for extra charging capabilities.

It is programmeable so it can be setup to suit your charging system. It also comes with a digital display (also used to programme) which can be fitted to your dash to monitor what your batteries are doing.

This unit is suitable for Lead Acid, Calcium, AGM and Gel batteries.

Thunder DC-DC Chargers -20 or 40 amp

When your vehicle requires a DC-DC charger (due to a variable voltage alternator), there is a new affordable solution from Thunder. These units boast a 20amp (TDR02020) or 40amp (TDR0240) output, solar controller which is able to regulate to 300watts (20amp unit) or 550watts (40amp unit) and a digital display directly on the unit. 

The unit works as an 8 stage charger from the vehicle and 3 stage from a solar source.

This unit is suitable for Lead Acid, Calcium, AGM and Gel batteries.

This is a popular unit for caravan owners to charge their battery bank via an Anderson plug (off the vehicle) or via the solar input.

This has become our most popular choice for DC-DC chargers.

Redarc BCDC Charger

When your vehicle requires a DC-DC charger (due to a variable voltage alternator), Redarc has a solution. These units come in multiple sizes and also low voltage versions. They also have a built in solar controller (regulator).

Universal Battery Trays

There is a small range of flat trays suitable for some dual battery setups. These are powder coated and ready to utilise a standard battery hold down clamp.

Generally these are used on the back of a ute, in a toolbox or similar. 

ACX0662 - 270mm x 175mm
ACX0663 - 335mm x 185mm

If you are looking for a tray to go under the bonnet, you will need to look at the vehicle specific listing below.

Hulk Vehicle Specific Battery Trays

Hulk has an ever increasing range of battery trays to suit under bonnet mounting. These are powder coated and come with fitting hardware including the battery hold down clamp.

Contact us for specific vehicle listings.


Toyota Hilux Battery Tray shown

Projecta Vehicle Specific Battery Trays

Projecta has an ever increasing range of battery trays to suit under bonnet mounting. Constructed from 2mm heavy-duty rust and corrosion resistant passivated zinc coated steel to guarantee optimum performance and longevity. These come with fitting hardware including the battery hold down clamp.

Contact us for specific vehicle listings.

Ford Ranger Battery Tray Shown