| [ Total Views: 1852 | Total Replies: 14 | Thread Id: 15262 ] |
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 fatboy
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| posted on November 1st, 2003 at 03:23 PM |
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Jaycar Dual Battery Kit
Hi Guys,
I have just bought the jaycar kit to install an extra battery in the kombi.
Has anyone actually installed one ?
The electronics look fairly straight forward to build the kit, but the instructions dont cover actually wiring it to your car.
If anyone can provide basic instructions like "Take the + lead off your main battery and attaced it to..." It would be a great help.
" Captain Picard, why are there no Indians on the Enterprise ? Don't you need IT Support ? "
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Salahahdin
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| posted on November 2nd, 2003 at 07:44 PM |
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Dude get onto Jaycar where you bought it from. They should have included Instructions. If there just ain't any then request them or get onto
there website and have a look there for Answers or ordering of Instruction (you'd think that'd be free of charge??)
I can't help you dude, never done it. Will be soon though. Got two landing lights to fit to the front of mine, which means I think either 2nd
battery or better alternator ?
Good luck
Charlotte Kevin and Brian
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fatboy
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| posted on November 2nd, 2003 at 08:59 PM |
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There are instructions - but only on how to build it - they dont give instructions on how it connect to the car.
Anyway I think I have figured it out and will post a description and pics when it's going for the benefit og anyone else.
:thumb
" Captain Picard, why are there no Indians on the Enterprise ? Don't you need IT Support ? "
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kombi_76er
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| posted on December 14th, 2003 at 10:21 AM |
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yeah mate do u rekon u could post sum of them pics if u took any. and let me know if it is worth having
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fatboy
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| posted on December 14th, 2003 at 10:53 AM |
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I've been really busy and haven't had a chance yet - but will do soon 
" Captain Picard, why are there no Indians on the Enterprise ? Don't you need IT Support ? "
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kombi
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| posted on December 15th, 2003 at 08:20 AM |
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can you tell me more aboutthis jaycar system.....how does it work?
i've got a second battery in my kombi, but its not wired in yet. was just going to put a solonoid isolater switch in (piranha model), but keen to
know more about the jaycar system.
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fatboy
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| posted on December 15th, 2003 at 08:51 AM |
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The Jaycar System first charges up your main battery then charges your second, if the voltage of your second is below 10.5V it will trickle charge
until it reaches 10.5 and then charge at the full rate this reduces damage to your battery.
When you turn your ign off it isolates your 2nd battery.
" Captain Picard, why are there no Indians on the Enterprise ? Don't you need IT Support ? "
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kombi
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| posted on December 15th, 2003 at 07:57 PM |
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thanks fatboy....keen to hear / see how you go installing yours. i'm not so keen on building or installing, but guess an autoelectrician could
help me out.
did you look at the piranha systems? they have a solenoid switch isolator (~$120 installed) and a diode pack battery isolator (~$300 installed). I was
going to get one of the solenoids this week, but after hearing about the jaycar setup, might wait and see how you go with yours!
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Purple Martin
A.k.a.: Martin
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| posted on December 16th, 2003 at 09:29 AM |
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It should be obvious from the circuit diagram where the wires go.
I built a Dick Smith kit and it goes like this:
There should be one beefy high-current wire to the main battery +ve and another beefy high-current wire to the auxilliary battery +ve (make sure you
get them the right way round), there should be one little wire to ground (i.e. anywhere on the body) and one little wire to the auxilliary +ve. The
big wire to the main needed to be long and coiled to provide a tiny bit of resistance.
1959 red & white Beetle
1975 Kombi camper
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modulus
A.k.a.: Peter Hill
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| posted on March 3rd, 2004 at 09:00 PM |
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Hi "fatboy",
Did you install it yet?
Any feedback on operation?
Anyone else install one of these, or the Dick Smith equivalent or a "commercial" type?
I'm looking for feedback for a forthcoming note on the
http://www.aussiekombicampers.com/
website.
TIA.
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crazyfiggi
A.k.a.: Alex
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| posted on March 3rd, 2004 at 09:19 PM |
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I bought a dual battery kit from whitworths marine store for $90, its designed for use on boats but wired into my kombi easily and works very well.
Alex.
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modulus
A.k.a.: Peter Hill
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| posted on March 3rd, 2004 at 09:21 PM |
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Thanks Alex, I'll look it up. Whitworths have some interesting gear, including supplementary fuel tanks.
Any other takers...?
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Purple Martin
A.k.a.: Martin
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| posted on March 4th, 2004 at 09:53 AM |
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My Dick Smith one failed.
I replaced it with a heavy-duty relay (50A) from a caravan spares shop. The relay acts as a switch in the big fat wire running from the main to
auxilliary battery. The relay is controlled by a small current from the heater blower +ve (which is already wired appropriately) so that the relay is
only on when the ignition is on.
The relay is bullet-proof, it'll last forever. You don't get the trickle-charge thing that a semiconductor kit does, but it's way more
reliable.
The other good thing about the relay is it makes it very easy to jump-start yourself. If you ever get a flat main battery (eg headlights left on) you
can jumpstart yourself just by connecting a wire from the auxilliary battery +ve to the relay control +ve to close the relay. Simple!
1959 red & white Beetle
1975 Kombi camper
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modulus
A.k.a.: Peter Hill
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| posted on March 4th, 2004 at 09:59 AM |
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Interesting how the simple setups often prove most reliable and satisfactory.
Jump-starting with a smart isolator looks to me to be a little fraught- it seems bound to surge the electronics;
Thanks,
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Jenny
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| posted on March 4th, 2004 at 10:25 AM |
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For more info, try doing a search of some of the 4 x 4 sites.
Here's some for you
http://www.pajeroclub.com.au/forum/forum_posts.asp?TID=5260&PN=1
http://203.147.170.134/Forum/Archive/2001/246.asp
http://www.exploroz.com/Forum/Archive/2003_1/3073.asp
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mnsKmobi
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| posted on March 4th, 2004 at 12:08 PM |
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Check this out for the circuit referred to by Purple Martin.
http://www.globalserve.net/~jrivers/aux-batt.htm
Note that they suggest using a 10 or 12 gauge wire for the charging wire to the auxiliary battery to avoid a high surge current when the car
starts.
The wire that activates the charging relay in the circuit can be connected to the alternator light or the heater blower (if you have one) as they both
connect to the same point.
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modulus
A.k.a.: Peter Hill
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| posted on March 4th, 2004 at 12:10 PM |
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Thanks Jenny & mnsKmobi,
Off to do some more homework...
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