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Unread 12-20-2011, 11:24 AM   #1
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Default Car batteries... Will it work?

I know that car batteries like to be constantly charged and will die completely if they aren't, so if I hook up a car alternator to the wheels of the golf cart to spin it, would I be able to charge the batteries constantly and use them in the cart?
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Unread 12-20-2011, 11:39 AM   #2
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Default Re: Car batteries... Will it work?

No.
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Unread 12-20-2011, 12:46 PM   #3
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Default Re: Car batteries... Will it work?

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Originally Posted by stevensj13 View Post
I know that car batteries like to be constantly charged and will die completely if they aren't, so if I hook up a car alternator to the wheels of the golf cart to spin it, would I be able to charge the batteries constantly and use them in the cart?
You don't have a gasoline engine propelling the buggy. What you're describing is perpetual motion plus (losses).
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Unread 12-20-2011, 01:18 PM   #4
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Default Re: Car batteries... Will it work?

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You don't have a gasoline engine propelling the buggy. What you're describing is perpetual motion plus (losses).
I see what your saying. I wasnt clear with what i said. I meant, could i hook up an alternator to charge the car batteries while im driving. The motor will run off the batteries not the alternator
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Unread 12-20-2011, 02:03 PM   #5
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Default Re: Car batteries... Will it work?

The alternator would never charge as much power as the batteries consume. So at most it would just lengthen the time till the batteries died.
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Unread 12-20-2011, 04:17 PM   #6
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Default Re: Car batteries... Will it work?

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Originally Posted by stevensj13 View Post
I see what your saying. I wasnt clear with what i said. I meant, could i hook up an alternator to charge the car batteries while im driving. The motor will run off the batteries not the alternator
you could.... but a DC to DC converter is a more efficient/practical approach.
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Unread 12-20-2011, 04:27 PM   #7
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Default Re: Car batteries... Will it work?

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you could.... but a DC to DC converter is a more efficient/practical approach.
But what if he hooked up 4 alternators..? You know....one to each wheel? Then he would have 4 times the charging capacity. Or at least 4 times more charging capacity than you do.
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Unread 12-20-2011, 04:32 PM   #8
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Default Re: Car batteries... Will it work?

Where are the Mythbusters when you need them? Oh wait, I remember...
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Unread 12-20-2011, 04:37 PM   #9
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Unread 12-20-2011, 05:24 PM   #10
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Default Re: Car batteries... Will it work?

I you lived in an area with hills that only go down, it might work.

You are basically describing my cart, except it uses the motor as a generator rather than a separate alternator.
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