12volt stepdown from 36 volt system??

How (and were do I get the parts) do I drop the voltage from a 36 volt golf cart system down to 12 volts so that I can attach and auto radio to the cart?
paul
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Paul Oman wrote:

Does the cart use 1 36 volt battery or 3 12 volt batteries in series.
If it uses 3 in series, your best bet may be to hook the radio to one battery, the one that has it's negative terminal connected to ground.
Mark
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Mark wrote:

Hi, Or if the current draw of the radio is know, installing drop resistor of correct value and Wattage. Calculate with Ohm's law. Tony
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That will not work because a load like a radio is variable. But it probably does run off 12 volt batteries, so like the first guy said, just hook it up to one of them. Greg
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If he couldn't tap into a 12V source, a simple voltage divider and a fuse should work .
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It's not worth the effort.
Buy a portable radio that uses "D" cells, and duct tape it to the cart
With continuous use, you might have to change batterys every six months or so.

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There are simple voltage regulator circuits that one can build with parts from Radio Schack. A couple of connectors, a board, a 12 volt regulator and some capacitors ought to get you going. You could probably even ditch the board. Of course, make sure you put a fuse from the battery to the regulator.

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These carts use six 6-volt batteries. I hooked my 12 volt light system up by connecting across two of the batteries.

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