Speed control for a 12volt powered minijeep?

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  #1  
Old 04-29-01, 02:01 PM
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I've got a battery operated little jeep which runs on a 12 volt battery 9 amp hours - the kind little kids can drive around the yard etc.

They usually have two six volt batteries and have two speeds changed by running one or two batteries.

They had recall/design problems so I just wired a 12 volter in line - now it goes one speed - bat out of hell. Way too fast for a beginner.

Looking for simple (if possible) fix to either regulate speed or temporarily put some sort of resistor in-line until he is ready to go fast. A speed control would be nicest but probably a bit complicated?

I put a radio shack potentiometer in line - obviously wrong one as flames were the end result. High points for pyrotechnics, low points for goal achievment.

A little help?
 
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  #2  
Old 04-29-01, 05:30 PM
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Tom, the pot would have worked, had it been able to take the amperage, a buck/boost x-former would probably do, but it would be $$$$. A fixed resistance could be calculated, but would aslo need to be able to take the umph.
maybe some gear alteration would do?
 
  #3  
Old 04-29-01, 05:52 PM
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"They had recall/design problems"

Who are they ? If the manufacturer did a recall, would they not have come up with a fix/replacement.
 
  #4  
Old 04-29-01, 08:09 PM
resqcapt19
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Wirenuts,
A buck/boost transformer on a DC circuit???

Tom,
They will send a free repair kit to a licensed electrician and pay him $20 to fix the toy if there is not a service center in your area.

dkeer,
The company is "Power Wheels".
http://www.fisher-price.com/us/power...t.asp?choice=4

Don(resqcapt19)
 
  #5  
Old 04-30-01, 07:36 AM
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There is a phone number at the site to call concerning the recall. Get the free repair done at the manufacturers expense. Don't try home remedies that could void warranties, contact them and follow their instructions at their expense.
 
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