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Alton Genorator without battery? #784163 09/13/19 3:32 pm
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Manx Offline OP
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Helo folks,

I`m at the final stages of my rebuild on a Bsa B33 and a little confused.

I have bought a BTH 12v magdyno and this runs without the need for a battery.

I also have an Alton ac generator which came with a podtronics 200W regulator/rectifier.

Alton do not recomend that I run the Alton without a battery but I am a little confused as to why?

I have to run daytime running lights and the Alton only gives out 90w and a peak max @ 150w so my confusion is why can`t I run without a battery like I do on my 2 strokes that run directly from the stator through a regulator to the lights?


1966 Rickman Metisse (a65)
1957 B33
1959 lambretta li 150
1960 lambretta li150
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Re: Alton Genorator without battery? [Re: Manx] #784207 09/13/19 10:50 pm
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NickL Offline
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You can run without a battery, the advice is probably given for people who have a coil ignition system.
Then the bike would be quite hard to start without a battery.
Just be aware your lights will dim at idle, i don't know what the coppers will think of that.

Re: Alton Genorator without battery? [Re: Manx] #784241 09/14/19 10:03 am
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you will want a capacitor in place or swap the pod tronics for a Boyer power box.

With no connection to a resistive source the Alton will over heat, causing the grease to run out of the bearings, you’ll only know because it will be howling, despite still charging.

The battery wire broke on my friends bike causing this issue, it would be similar to running without a battery at all.


beerchug
Re: Alton Genorator without battery? [Re: Manx] #784242 09/14/19 10:19 am
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Your lights will go out at idle rpm, not just dim, unless your Alton is different from mine.

I don’t get the story about the Alton burning out because there was no battery. When the battery is fully charged, there is virtually zero DC current going anywhere from the regulator, so what would be different, were there no battery in place?

Altons have a long history of failing for any reason or no reason, so it’s hard to prove either way.


Amateur Loctite enthusiast.
Re: Alton Genorator without battery? [Re: triton thrasher] #784246 09/14/19 11:35 am
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Originally Posted by triton thrasher
Your lights will go out at idle rpm, not just dim, unless your Alton is different from mine.

I don’t get the story about the Alton burning out because there was no battery. When the battery is fully charged, there is virtually zero DC current going anywhere from the regulator, so what would be different, were there no battery in place?

Altons have a long history of failing for any reason or no reason, so it’s hard to prove either way.

You have had trouble with them? What goes bad?


79 T140D, 96 900M Ducati ,2001 Sportster....On a bike you can out run the demons..
Re: Alton Genorator without battery? [Re: Hillbilly bike] #784249 09/14/19 12:31 pm
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Originally Posted by Hillbilly bike
Originally Posted by triton thrasher

Altons have a long history of failing for any reason or no reason, so it’s hard to prove either way.

You have had trouble with them? What goes bad?


I had a 3-phase version, which stopped charging. I sent it back and (eventually) got a replacement, which was single phase and with a reduction gear. It’s been fine, although it’s not properly made to fit a Triumph.

If you google Alton alternator, many of the results will be about failures and slow-going dealings with the maker.


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Re: Alton Genorator without battery? [Re: Manx] #784250 09/14/19 12:55 pm
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Andy Higham Online Content
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Why do some people become obsessed about running without a battery?


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Re: Alton Genorator without battery? [Re: Allan Gill] #784300 09/14/19 11:55 pm
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Originally Posted by Allan Gill
you will want a capacitor in place or swap the pod tronics for a Boyer power box.

With no connection to a resistive source the Alton will over heat, causing the grease to run out of the bearings, you’ll only know because it will be howling, despite still charging.

The battery wire broke on my friends bike causing this issue, it would be similar to running without a battery at all.



When a pod or a powerbox or any shunt regulator is controlling a pm alternator the shunting
does not present any greater load to the stator than running around 60% of maximum capacity.
The stator will warm up but will not be overloaded, it is like running the stator with the 2 or 3 output
wires twisted together, it will not harm the stator. Contrary to popular belief, it also does not present
a significantly greater mechanical load either. (Not with these old primitive ones anyway.)
Placing a capacitor in place of the battery would aid the starting of a coil ignition bike, it does not
really do anything else.
I tend to agree with Andy, these days a tiny battery can be stowed somewhere so easily and the
lights will work all the time.

Re: Alton Genorator without battery? [Re: NickL] #784367 09/15/19 7:42 pm
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Manx Offline OP
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Ok. I can play by the book and add a small lipo battery.

On my 2 strokes the lights dim but are actually very good at speed.

If the lights will completely fade at a standstill, then that's not a good thing.


1966 Rickman Metisse (a65)
1957 B33
1959 lambretta li 150
1960 lambretta li150
Re: Alton Genorator without battery? [Re: Manx] #784374 09/15/19 8:33 pm
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Originally Posted by Manx
Ok. I can play by the book and add a small lipo battery.


Will that work better or worse than a lead acid battery?

Don’t do anything for our sake. Try it with no battery if you like.


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Re: Alton Genorator without battery? [Re: Manx] #784439 09/16/19 4:40 am
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Manx Offline OP
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A ran a lithium battery in my A65. They keep their charge really well and are small/light.

I have fit a scrambles single seat and the standard battery carrier doesn't fit.

As I mentioned before, I run without the battery on my 2 strokes which do dim at a standstill but if they will almost turn off with the Alton, then I will need a battery.


1966 Rickman Metisse (a65)
1957 B33
1959 lambretta li 150
1960 lambretta li150

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