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how to make a dynamo battery charger? Answered

i settled on using my old drill as a generator but the power just goes into the drill instead of the batterys do i need a diode and what sort?
by the way the drill is 12.5v

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Re-design
Re-design

Best Answer 11 years ago

YOu have to use a diode in line with the battery to prevent the powerthat you're trying to force back into the battery from pushing it's wayback out and trying to make the generator into a motor.

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sharlston
sharlston

Answer 11 years ago

pointing towards the battery?

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Re-design
Re-design

Answer 11 years ago

The arrow should be point to the pos. term of the battery.