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DC output

A

Andreas83

Active member
I would like to get a dc output and a battery for charging gps, cellphone etc.
Will this work, or will i burn something?
picture2783-koblingskjema.jpg
 
If you put a battery in you will need a charging circuit to charge the battery. 1 option is to buy a Koso ac/dc power pack. This will output a clean 12vdc from the sled's AC output.
Other wise you could build your own with a Bridge Rectifier and Voltage Regulator.
Radio Shack Voltage Regulator 276-1771
Radio Shack 8A Bridge Rectifier 276-1181
The circuit is attached. You will need to attach the voltage regulator and probably bridge rectifier to heat sink. This heat sink can be the same that is used on your stock regulator.
Otherwise if you don't want to do that work you can buy a complete unit off ebay. 5 Amps Voltage Regulator Module, Output 1.5-32V, LM338T
post-48010-012315100%201283975756.jpg


IMG_1111.jpg IMG_1110.jpg
 
A few years ago I mounted a battery box and small battery under the hood and wired it to a 12 volt plug.
No charging mechanism, I just charged it frequently.

It would work a GPS or cell for days.
 
Electricy Q?

So does the stator put out AC? If it does then the CDI works on AC?

I have a 2002 550 fan that I added electric start too but did not change out the voltage regulator.

We were in Wyoming for 5 days straight and the battery wore down. I see in the parts diagrams they call for two different voltage regulators and one says it 14.3 v AD/DC and the other says it's 14.3V DC?

Am I chasing the correct issue? Or is it a bad battery? I generally leave it on a trickler when we aren't riding.
 
Yes the stator puts out an AC voltage. That goes to your CDI. The voltage off the stator varies with your rpm. The service manual states 15-45VAC is normal. This voltage then travels to the stock voltage regulator. That one regulates that changing AC voltage around 14VAC. That is the 14.3AC one without electric start. When you added the electric start you should have replaced the voltage regulator with the 14.3VAC/DC. The new one has a built in rectifier that converts the AC voltage into a 12VDC output to the battery. This will also charge the battery as well. The battery probably just ran out of juice since it wasn't being charged while the engine was on. Just replace your stock 14.3AC voltage regulator with the 14.3VAC/DC. I would probably still trickle charge it every so often to get the most out of your battery.
 
AC/DC

Does the voltage regulator with the DC output have more than one wire coming out of it? I purchased a voltage regulator from a classic with electric start but the only difference I can see is that it's thicker in depth than the other one.

Thx for the info.
 
The new regulator should have 2 wires. There should be a yellow for VAC and a red wire for VDC. There are some models out there that have 2 separate regulators, not just 2 of them built into one. What year classic did you get that regulator out of? I looked at my service manual(I don't have e-start) and it has one main regulator on the schematic. It has the optional e-start in there. Another wire coming out of that. Of course it would be a different part for that though.
 
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