The 150 series Dual Battery Guide

[ben29150 Junior Member Find all posts View Profile Close ben29150]

Ummm the boost light came on...

[Isiman Junior Member Find all posts View Profile Close Isiman]

Ben: sorry, I should have been more specific, I was addressing FooToo and BlakMoth, as they were suggesting that the switch allows you to jump start the car from the secondary battery, however unless there is additional equipment installed in your car other than the BCDC1220, then I do not think that that is the case.
I think the switch is for some other purpose, as amts suggests.
Maybe go and ask the question where you got the install done, as really, the switch could be for anything and you won't be 100% sure unless you trace the wiring back or ask at ARB.

Cheers,

[Guest Close Guest]

Ummm the boost light came on...

Here is a quote from the user manual
When the BCDC1220 is turned on, it will move into the bilk charging stage called Boost stage. Boost stage maintains a constant current until the battery voltage reaches it set point. The current in Boost stage may vary during operation is order to maintain safe operating temperature.

To me, this tells me that the switch is linking the auxiliary battery together via an isolator like an SBI12. An SBI12 look like this.


Can you see one of these units?

[peter_mcc Senior Member Find all posts View Profile Close peter_mcc]

To me, this tells me that the switch is linking the auxiliary battery together via an isolator like an SBI12. An SBI12 look like this.


Can you see one of these units?

If ARB installed it they probably used an ARB dual battery kit which uses the SBI12. The switch will manually link the two batteries together so that you can start the car from the auxillary if the main battery is flat. If the switch lights up then it means the two batteries are linked for charging (not sure if they used an illuminated button or not)

[kenny5000 Advanced Member Find all posts View Profile Close kenny5000]

So let me start off by saying I have no electronical knowledge at all so this will most likely be a dumb question but... I had ARB install a duel battery system in my new prado but they didn't really explain how to use it... Question 1: Does the ignition need to be on to use the second battery or is it on all the time? Question 2: I have attached a pic of a button that ARB installed and have no idea what it does...

Sorry in advance for my cluelessness.

I would be asking ARB, they installed it. They should have given you a: here a button and this is what it does.

[BlakMoth Avid PP Poster! Find all posts View Profile Close BlakMoth]

Kenny is right. They are meant to go through all of it with you when you pick it up and before you pay.


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[ben29150 Junior Member Find all posts View Profile Close ben29150]

Amts was right. It's a button to link the auxiliary and main battery via an isolator. All sorted. That's everyone!

[Guest Close Guest]

Amts was right. It's a button to link the auxiliary and main battery via an isolator. All sorted. That's everyone!

Blakmoth and footoo was on the money too.

[kenny5000 Advanced Member Find all posts View Profile Close kenny5000]

I was looking at the Intervolt Isolator, has anyone used one or know what they are like??

http://www.intervolt.com/products/el...r/default.aspx

Cheers

[craigm Addicted PP Member Find all posts View Profile Close craigm]

I was looking at the Intervolt Isolator, has anyone used one or know what they are like??

http://www.intervolt.com/products/el...r/default.aspx

Cheers

How much?

[kenny5000 Advanced Member Find all posts View Profile Close kenny5000]

How much?

They are around $200 on good old ebay at the moment.

http://www.ebay.com.au/itm/PROGRAMMA...item46002668ad

As I am no electrical guru so Im wondering if they provide any significant advantage over any other isolator given they are twice the price of say a Redarc SBI12.

[Mattfunk 120 Advanced Member Find all posts View Profile Close Mattfunk 120]

The 150 series Dual Battery Guide

Plenty of extra functions. It looks a good unit . I have the SB12D which is $150 & the best function is the bi-directional charging as I have the input for my portable solar panel connected to my aux battery which will bring my aux and camper batteries up to charge before it opens to charge my crank battery. No moving parts (no solenoid )=1 less thing to break , easy to connect as not polarity conscious . 150amp better than 100 as batteries will be paralleled up if winching cause motor will be running. Not sure what you would use n/c contacts for but the option is there . Also if you wanted to choose your own cut in/out voltage you can. Thermal cutout protection is a good idea & 2 yr warranty. Seems the goods , suppose look at what you require but for $50 more than the SB12D I would consider it if I was to start again
Cheers Matt

[kenny5000 Advanced Member Find all posts View Profile Close kenny5000]

After putting further thought into my dual battery system, what I am now thinking triple battery system. I am thinking about putting a Optima D34 under the bonnet with a larger 100 Ah AGM battery in parallel (from the D34) in the back. This will allow me to not have to worry about running the car for a few days at a time. I was going to use a SBI12D or maybe the Intervolt isolator that I have posted above (post 399) and would like the provision for solar once funds allow for the purchase of panels. I would like to easily be able to remove the battery in the rear when not needed, however still be able to run my fridge from the battery under the bonnet on day trips. Any issue that I may run into with this type of set up??? Cheers.

[Hollywood Member Find all posts View Profile Close Hollywood]

Plenty of extra functions. It looks a good unit . I have the SB12D which is $150 & the best function is the bi-directional charging as I have the input for my portable solar panel connected to my aux battery which will bring my aux and camper batteries up to charge before it opens to charge my crank battery. No moving parts (no solenoid )=1 less thing to break , easy to connect as not polarity conscious . 150amp better than 100 as batteries will be paralleled up if winching cause motor will be running. Not sure what you would use n/c contacts for but the option is there . Also if you wanted to choose your own cut in/out voltage you can. Thermal cutout protection is a good idea & 2 yr warranty. Seems the goods , suppose look at what you require but for $50 more than the SB12D I would consider it if I was to start again
Cheers Matt

Interestingly the Redarc unit draws the power for the manual override switch from the Aux battery, presumably because your start battery is dead hence the need to use the manual override...


However the Intervolt unit seems to draw it's power for the override switch from the start battery.


So how will it work if the start battery is dead?

[fido666 Banned Find all posts View Profile Close fido666]

They are around $200 on good old ebay at the moment.

http://www.ebay.com.au/itm/PROGRAMMA...item46002668ad

Looks interesting but I hear the seller is a real PITA to deal with if you have issues. I would be looking at a programmable one if I ever swap out my isolator, the current ABR Sidewinder one I have is set for too low a cut out.