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I have a 1982 Yamaha ET340T that is, of course, all AC run. I am wonder if I can use a rectifier to produce a 12v DC current to charge a small battery to run some DC only accessories.

Has anyone done this? I would like to know what kind of rectifier to get and where to wire it in.
 

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This is from a manual explaining the changes made from the 1979 to the 1980 model Yamaha ET340.



It looks like they added an inductor coil to provide power (through a rectifier) to a battery. The battery was to power an electric starter.

If yours is an 82, it may have that extra inductor for making power. Look for a white wire coming out. See what voltages it has on it with the engine at idle and at rev.
 

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I got a kit from Snobunje that had a rectifier and a dry cell battery to run a GPS. It just hooked to a wire and took one side of the charge to keep the battery charged. I don't think they have it anymore, at least not listed on their website. You can get a Regulator/rectifier and it should be able to keep a small battery charged for electronic toys.
 
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