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Re: 24 volts down to 12 volts.
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Posted by Ken McWilliams on July 02, 2000 at 18:54:06 from (152.163.197.47):
In Reply to: 24 volts down to 12 volts. posted by PaulCtOH on July 02, 2000 at 11:13:59:
Paul, If you're using two 12 volt batteries in series, I don't see where the charging system would be confused. Take a wire from positive terminal on the battery that has it's negative terminal grounded to the chassis ( I assume this is a negative grounded system). Check it out with a voltmeter. You'll see around 12 volts from that positive terminal to ground. The other battery's positive terminal will be 24 Volts to ground (chassis)> Run a wire from that termial to an isolated switch and then, to what ever you want to power at 12 volts. The two series wired batteries establish a simple voltage divider circuit (E=IR). Ohm's law is the same around the world. If you choose to use 24 volts and use 12 bulbs, you must ony use 2 bulbs of the same resistance in each branched circuit or else the voltage drop will not be equal across each of the two bulbs and the one with the higher resistance (Ohm's law: E=IR) will burn out prematurely. I wouldn't waste money on a 24V to 12V converter.
Ken McWilliams
Dayton, OH
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