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Post Info TOPIC: Battery out


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Battery out
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Przepraszam, tłumacz Google. Czy uruchomi silnik stopą bez akumulatora i czy będą zapalone światła po uruchomieniu? Can I get rid of the battery if I have only a kick start?



-- Edited by tom13 on Wednesday 28th of March 2018 08:35:51 PM

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Grandpa Tom

 



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I ran a DT175 without a battery when I was a teenager. It had a zener diode fitted that stopped the alternator blowing the bulbs.

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I nie wystarczy po prostu wyjąć baterię i zabezpieczyć przewody?  I would like to remove the battery. What will the consequences be?



-- Edited by tom13 on Wednesday 28th of March 2018 10:05:18 PM

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Grandpa Tom

 



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How would the bike run without a battery? doesn't it need some power to even kick over?



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totallyttrs.com

 



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My DT would start without a battery. The spinning alternator was enough for a spark. Once the engine was running it produced too many wiggley so the diode dumped the spare current straight to the earth on the frame I think. It's a long time ago but I remember  the headlight used to dim and brighten dependant on the engine speed.



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If it's enough for a spark and some light it's good. Only is it enough?

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Grandpa Tom

 



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I think you need the battery to soak up the variations in power coming from the stator. Without it, in theory, the bike should run because the stator provides the power to keep the spark going, lights on etc (as soon as it starts spinning with the kick), plus extra to keep the battery charged. BUT, without it, you might run the risk of frying something sensitive, and expensive, like the cdi. The cdi might also need 12 volts supplied before the engine is running, to allow it to "switch on", but I'm not sure of this.
I think you should at least have a capacitor in place to soak up the spikes in power (sorry, can't advise you what size) If you are just trying to save weight you could maybe try fitting a much smaller 12v battery, but I wouldn't try running without one.
Just use the throttle more to make up for the weight


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I understand mossproof, this is a good explanation. Thank you. I have a very old battery and I do not need it for the starter.

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