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Unread 12-05-2015, 08:39 PM   #1
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Default Voltage reducer

So i hooked up voltage reducer form carts unlimited on my 05 club car. It works very good but each time I disconnect one of the batteries and connect back i get a good spark. Is there any way to get rid of that spark ?


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Unread 12-05-2015, 09:15 PM   #2
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Default Re: Voltage reducer

You would need some way to supply power to the reducer while the batteries are not hooked up. Or you could put a power switch on reducer.
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Unread 12-06-2015, 12:19 AM   #3
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Default Re: Voltage reducer

Run your positive wire through a fuse then through the key switch or any kind of switch then to your reducer. Then when the key or switch is off no spark.
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Unread 12-06-2015, 09:49 AM   #4
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Default Re: Voltage reducer

the yellow wire goes to the key switch , or an on/off switch

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Unread 12-06-2015, 09:58 AM   #5
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Default Re: Voltage reducer

If I'm not mistaking, to keep the Sparks away you need a switch on the red wire.

Not sure but you may also need a resistor, and or diode. Sergio where are you.
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Unread 12-06-2015, 10:05 AM   #6
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Default Re: Voltage reducer

i hate to say it but your mistaken
the yellow wire energizes the reducer
if it has no power then red wire is dead , no spark
done a few scotty reducers in my time
never used a resistor, and or diode
the diagram is what scotty sends out
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Unread 12-06-2015, 11:32 AM   #7
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Default Re: Voltage reducer

The first time a DC-DC converter is powered after is has been disconnected from the batteries, there will be an inrush of current as the input capacitors inside the voltage converter need to charge.

What I do on mine is to use an incandescent light bulb (60w or so) and run it in series with the positive cable for a few seconds.

Just stand the light bulb on the battery post and touch the cable on the threads of the light bulb, a 60w light bulb is about 240Ω and it will charge the capacitors without a spark.

You can then just put the cable on the battery post without a spark.

Those input capacitors will then stay charged, using a very small amount of current, even if the Yellow trigger wire is OFF.
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Unread 12-06-2015, 04:19 PM   #8
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Default Re: Voltage reducer

Quote:
Originally Posted by crash test dummy View Post
i hate to say it but your mistaken
the yellow wire energizes the reducer
if it has no power then red wire is dead , no spark
done a few scotty reducers in my time
never used a resistor, and or diode
the diagram is what scotty sends out
I will not disagree with you. I was just looking at the wiring diagram, I have no hands on experience with that reducer to speak of.
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Unread 12-06-2015, 05:00 PM   #9
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Default

I have yellow to ignition switch, green to accery box, red to batteries And black to ground per sheet scotty sends out. The diagram just showed has green to light switch , i have light switch to acessary box.


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Unread 12-06-2015, 06:30 PM   #10
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Default Re: Voltage reducer

i run green to fuse box
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