Thread: Electronics?
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Old 06-15-2009, 11:44 PM
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Earthman Earthman is offline
Motorized Bicycle Senior Member
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 82
Default Re: Electronics?

For a few bucks you can get a bridge rectifier from RadioShack and a 7V Zener diode (online ‘cause RadioShack will not have it) and try the circuit below for a lead-acid battery. If you are using different batteries, get a Zener diode that matches the required charge voltage.

Try the following link for the Zener diode:

7V Zener Diode:

NOT-SO-SMALL-PRINT: I have never tried the circuit below & I only know enough about electronics to be dangerous. You’ve been warned. Good luck, and let us know if it works.
Attached Images
File Type: jpg Charging Circuit2.jpg (8.6 KB, 27 views)
File Type: jpg Charging Circuit.jpg (88.9 KB, 36 views)

Last edited by Earthman; 06-15-2009 at 11:58 PM.
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