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Fully Installed Dual Battery System Packages

Forbes Batteries & Electronics is your Local one stop shop in Toowoomba & Darling Downs for all your Fully Installed Dual Battery System Package requirements. We have a range of custom made Dual Battery System Packages to suit all types of 4WD automobiles, AWD automobiles, Caravans, Trailers & Much more. All the Custom made Dual Battery System Packages are installed at our workshop in Toowoomba by highly experienced & qualified Technicians who prove quality workmanship, warranty and a great customer service


What is a Dual Battery System?

People often require DC power to run equipment like Fridges, Lights, Toasters, and Kettles etc. during camping or recreation. Running the mentioned equipment just with a starting battery will run it flat in no time. This is where a secondary battery is needed to run all the auxiliary equipment without damaging the starting battery and the risk of sending the starting battery flat. The secondary battery will also charge of the vehicles charging system.

In short a Dual Battery system is connecting the starting battery & the secondary battery in parallel with some form of isolation between them.


DC – DC Chargers

The DC-DC chargers are a perfect solution to the isolator method of charging. These chargers are just like the CTek / Victron Chargers that plug into a power point. The only difference is, instead of having a 240V AC input; the DC-DC chargers used in Dual Battery Systems have a DC input that is 12V. There are two types of DC-DC Chargers.

Standard DC-DC Chargers

These DC-DC chargers require an input voltage of 13.2V or greater to operate. This means that the DC-DC charger will not operate when the engine is turned off as the voltage will fall below 13V. This will prevent starting battery from being drained. When the vehicle starts back up, the alternator will kick in and the starting battery voltage will rise above 13.2V. This will turn the DC-DC Charger back on and charge the secondary battery.

Low Voltage DC-DC Chargers

These DC-DC chargers require an input voltage of 9V or greater to operate. If the input (starter battery / alternator) does not measure 9V or greater the charger will not operate. This also means that after the engine is turned off, the DC-DC charger will continue to operate until the starter battery is drained down to 9V. This is not ideal, because at 9V the starter battery is completely flat and will be unable to start the vehicle. The low voltage DC-DC chargers therefore require both a minimum voltage of 9V as an input and an “ON” signal from the ignition.


Type of Alternator

Isolators / VSR

Standard DC-DC Charger

Low Voltage DC-DC Charger

Standard Alternator

Suitable but not ideal

Secondary Battery will charge only to 80%-90%

Suitable

Will require a minimum input of 13.2V

Suitable

Will require a minimum input of 9V & ignition trigger. 9V is always provided by the alternator & the ignition wire will make sure the DC-DC charger works only when the vehicle is running.

Smart Alternator

Not Suitable

Alternator will start charging the secondary battery. However the voltage can drop to 12.5V quickly

Not Suitable

Requires a minimum input of 13.2V which is provided by the smart alternator only for a short period

Suitable

Will require a minimum input of 9V & ignition trigger. 9V is always provided by the alternator & the ignition wire will make sure the DC-DC charger works only when the vehicle is running.

Temperature Compensating Alternator

Not Suitable

Alternator will start charging the secondary battery. However the voltage can drop to 13.2V quickly as the engine bay heats up

Suitable, but can have issues

A standard DC-DC charger will sometimes work. Some brands require slightly more than 13.2V and in really hot conditions, the alternator may fall below 13.2V

Suitable

Will require a minimum input of 9V & ignition trigger. 9V is always provided by the alternator & the ignition wire will make sure the DC-DC charger works only when the vehicle is running.


Projecta 25A DC-DC Charger Packages

AmpTech Battery Package

1 x IDC25 Projecta 25A DC-DC Charger
1 x AmpTech 120AH AGM Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,099.00

Powerhouse Lead Carbon Battery Package

1 x IDC25 Projecta 25A DC-DC Charger
1 x Powerhouse 120AH Lead Carbon Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,249.00

Sentry Lithium Battery Package

1 x IDC25L Projecta 25A DC-DC Charger
1 x Sentry 100AH Lithium Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $2,299.00

Redarc 25A DC-DC Charger Packages

AmpTech Battery Package

1 x BCDC1225D Redarc 25A DC-DC Charger
1 x AmpTech 120AH AGM Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,298.00

Powerhouse Lead Carbon Battery Package

1 x BCDC1225D Redarc 25A DC-DC Charger
1 x Powerhouse 120AH Lead Carbon Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,448.00

Sentry Lithium Battery Package

1 x BCDC1225D Redarc 25A DC-DC Charger
1 x Sentry 100AH Lithium Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $2,948.00

Redarc 40A DC-DC Charger Packages

AmpTech Battery Package

1 x BCDC1240D Redarc 40A DC-DC Charger
2 x AmpTech 120AH AGM Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,677.00

Powerhouse Lead Carbon Battery Package

1 x BCDC1240D Redarc 40A DC-DC Charger
2 x Powerhouse 120AH Lead Carbon Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $1,977.00

Sentry Lithium Battery Package

1 x BCDC1240D Redarc 40A DC-DC Charger
1 x Sentry 125AH Lithium Battery
1 x Battery Box to suit Battery
Anderson Input for solar panel
Full Installation
Installed: $2,958.00

Price does not include : Aux sockets & plugs running off the secondary battery, charger mounting bracket, battery monitor & other custon parts / items

All dual battery system packages with lithium batteries include wiring of "reset" switch to reactivate the battery in the event of internal protection tripping.

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CTEK 20A Dual Battery System CTEK 20A Dual Battery System

  $740.95
D_BCTEK20ABT
   
 

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sales@forbesbatteries.com.au