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Old 06-29-2010, 04:44 PM   #3510 (permalink)
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Originally Posted by LUCKY13 View Post
I am building ten mutant electric shopping carts and need to shave some costs, in a big way. Yes, this is a Burning Man project. Yes, I always build crazy things.
You can do thinks like put a switch on each battery, and the more switches you turn on, the faster it goes. Real cheap.

If you don't care about efficiency you could use a variable resistor (functionally) like a lightbulb dimmer switch - you're still draining your batteries at the full rate, but the power not going to the wheels is going to heat.
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