Charging batteries with solar panels

Hi all,
Could someone recommend a business in Perth who would be able to supply the panel(s) and other necessary gear please. My plan is to fit solar panel(s) to the cab roof so that I can charge my fridge battery & crank battery, and only use the alternator when the solar charger fails in poor weather etc..
Any advice would also be welcome.

My vehicle is a 2007 Toyota Landcruiser VDJ79 ute

Many thanks

Happy 4WDriving
Mark

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Reply By: Member - Jerry C (WA) - Wednesday, Nov 21, 2012 at 00:29

Wednesday, Nov 21, 2012 at 00:29
Hi Mark,

You could try "The 12 Volt Shop" in Kewdale Road.

Cheers, Jerry.
AnswerID: 498911

Follow Up By: member - mazcan - Wednesday, Nov 21, 2012 at 12:07

Wednesday, Nov 21, 2012 at 12:07
hi markthemilko
the 12 volt shop has quality products and advice
but they aren't the cheapest but then you decide what price or quality and where you get it
you can go back to the 12 v shop if your not happy but the ebay purchase is a one way rd
cheers
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Reply By: two_ks - Wednesday, Nov 21, 2012 at 02:28

Wednesday, Nov 21, 2012 at 02:28
try Challenge batteries Osbourne Park
AnswerID: 498913

Reply By: auzinomad - Wednesday, Nov 21, 2012 at 10:53

Wednesday, Nov 21, 2012 at 10:53
Why not use Ebay ?
Even with the freight included it will be a lot cheaper.
I used Antenergy in Vic and got a good deal.

I have a 120W panel fitted to the roof of the canopy of the Ranger, it's only purpose is to keep the second battery that runs the Engel charged, when I'm not mobile, .
Using that type of system keeps things nicely separate and gives me a charged backup battery if I ever needed one.

Ron
AnswerID: 498926

Reply By: Member - Noldi (WA) - Wednesday, Nov 21, 2012 at 11:39

Wednesday, Nov 21, 2012 at 11:39
Hi Mark, I'm with Ron, I purchased a 100w and 125 w panel from ebay less than $350 for both. I have a Triton ute with 2 "house" batteries running 2 fridges and led lights when we go away. I have a morning star (?) controller. I don't use the crank battery for anything but starting the engine. Just did a 10 day trip (Sep), no problem with power
AnswerID: 498928

Reply By: Allan B (Member, SunCoast) - Wednesday, Nov 21, 2012 at 18:36

Wednesday, Nov 21, 2012 at 18:36
.
Hi Mark,

It gets a bit complicated to have your solar panel charge both the crank battery at the same time as charging the fridge battery because you also need to isolate the crank battery from being discharged by the fridge.

If you keep the crank battery purely for cranking with no auxiliary loads on it then there should be no need to apply charge to it other than from the alternator when driving.

Having an isolator (eg. Redarc SBI12) between your crank and fridge batteries will allow the alternator to charge the both the crank & fridge batteries without the risk of the fridge draining the crank battery when stationary.

Cheers
Allan

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AnswerID: 498941

Reply By: Sludgie W.A - Wednesday, Nov 21, 2012 at 20:33

Wednesday, Nov 21, 2012 at 20:33
Hello Mark, I would suggest you contact John at Foldasolar. He has heaps of info on what you need for watts and his pricing and service is very good.Located in Kalamunda I think. Phone # is 1800 900 999

www.foldasolar.com.au

Sludgie
AnswerID: 498946

Reply By: Member - Markthemilko - Thursday, Nov 22, 2012 at 00:05

Thursday, Nov 22, 2012 at 00:05
Many thanks for all your input, greatly appreciated.

I prefer to support local businesses where possible. So that includes the 12Volt shop in Kewdale and the Foldasolar shop in Kalamunda, - both pretty close to home.
Challenge Batteries in Osborne Park had very little solar stuff on their website.

I have a Redarc device which enables charging of the fridge battery and isolates the crank battery from the fridges.

I was hoping to use the solar panel fixed to the cab roof to charge both batteries, and thus save some fuel too! I heard about it on ABC RN about a week ago and saw a video on Utube as well. But if I can't then I can't!

thanks again.

regards
Happy 4WDriving
Mark

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AnswerID: 498962

Follow Up By: Allan B (Member, SunCoast) - Thursday, Nov 22, 2012 at 09:22

Thursday, Nov 22, 2012 at 09:22
.
Mark, you can charge both batteries from the solar panel, but as I said, it complicates your electrical system, and for little gain.

In any case, despite some idealistic proponents of the idea, there is little real savings in fuel to be had. Provided that you are not placing significant accessory loads on the cranking battery, the only consumption from the cranking battery requiring recharge is from the starter motor. The actual ampere hours consumed during a normal start of a healthy engine is actually quite small and this is replaced within a short time of driving following the start. So when the vehicle is parked after driving for a while the cranking battery is fully charged and therefore will not be seeking any significant charge from the solar panel.

Cheers
Allan

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Follow Up By: Member - Markthemilko - Thursday, Nov 22, 2012 at 23:32

Thursday, Nov 22, 2012 at 23:32
Ok, thanks for that Allan.

regards
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Mark

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