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#1123607 - 22.04.15 22:47 ... aiming to electrical "self-sufficiency"
ConRAD
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... aiming to total electrical "self-sufficiency", more details HERE


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#1124227 - 24.04.15 22:34 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
memy
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Very interesting blog even my italian is less than basic!
I didn't know that there are so many different spoke-dynamos on the market (next to sunup).
Did you try one/some of them? How did they perform? Any long-therm experience?

greetings
Horst
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#1124259 - 25.04.15 08:35 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
ConRAD
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My only direct experience with such dynamos has been limited to an AUFA model that I finally replaced with a more reliable hub type dynamo.
All spoke dynamos suffer IMO to have one or more internal plastic gears that are pretty noisy, reduce overall efficiency and are subject to a fast tearing-out of the entire mechanism. On top of that, except for the AUFA, all the other ones are permanently engaged with the spokes and so far, either you need them or not, they’ll be rotating the whole time.
I personally don’t like them.
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#1124268 - 25.04.15 09:26 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
Deul
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I have a "Forumslader" on SON hub dynamo. I am self sufficient and independent from the sunshine
Cycling is an addiction, it can drive you quite insane. It can rule your life as truly as strong whiskey and cocaine.Forumstreffen Edersee 2014
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#1124286 - 25.04.15 11:09 Re: ... aiming to electrical "self-sufficiency" [Re: Deul]
ConRAD
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Originally Posted By: Deul
... I am self sufficient ...

... well, the term "self-sufficiency" is in effect a sort of a "philosophic-abstract" concept, everything so far depends on how much you consume compared with how much you can actually generate.
Now, going back to a practical point of view: did you make any actual measurement on how much power you get out of your device let say at 20 km/h?
From my son/e-werk combination I can't get more than 2.75W.

Cheers.
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#1124291 - 25.04.15 12:12 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
memy
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Have a look at the upper diagramm:
Forumslader
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#1124327 - 25.04.15 14:49 Re: ... aiming to electrical "self-sufficiency" [Re: memy]
ConRAD
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You are right, looking at the chart either e-werk and zzing are indeed well below 3W at 20km/h.
What it isn’t clear so far is why FLs exhibit a power pick at 32-33 km/h and then they start to decrease.
As far as the 20 km/h speed is concerned … yes, it appears that that FL’s are by far better perforrming.

Now however the point is:

- for all my USB devices for the last four years I’ve been using very satisfactorily an e-werk with its cache battery; however I’ve now replaced the e-werk with a zzing basically because it looks more compact having a built-in battery of 16 Wh and no more extra wires !!

- for all my NOT-USB devices I’m using a Powertraveller that I normally charge either from AC mains or from the sun via a photovoltaic panel.

Yes, I’d might be quite interested trying to replace zzing with an FL but do I have to change anything in my basic schematics? i.e., can FL take straightforward the place of the item labeled “AC/DC-DC/DC Converter” ?

Thank you.

http://by-conrad.blogspot.it/
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#1124330 - 25.04.15 15:04 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
Deul
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I tried the e-werk, and I found it good for flat tours. As soon as yo go to California coast, Alps, Pyrineees etc the e-werk si not good enough. the FL is a notch over the e-werk. I canned the e-werk on this behalf. I found it unusable for the type of travels we are doing. Your question about the diagrams got answered already. I am charging battereis for my Garmin, my iphone and the camera batteries.

Detlef
Cycling is an addiction, it can drive you quite insane. It can rule your life as truly as strong whiskey and cocaine.Forumstreffen Edersee 2014
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#1124557 - 26.04.15 14:33 Re: ... aiming to electrical "self-sufficiency" [Re: ConRAD]
memy
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Originally Posted By: ConRAD
Yes, I’d might be quite interested trying to replace zzing with an FL but do I have to change anything in my basic schematics? i.e., can FL take straightforward the place of the item labeled “AC/DC-DC/DC Converter”
I'm definitely the wrong person to answer questions when it comes to electric problems. But just in case you didn't find out yourself already: basically there are two versions of the forumslader possible. One ist for inner head-tube mounting, the other one - the compact version - you can place in your handlebar bag for example. Both versions include batteries. The first one with 6Wh, the compact one with 22Wh.
12V/5A, Bluetooth (Android App available), 1A or even 3A USB possible.
But i can not answer your question whether its possible to replace your zzing. i guess some more details about your setup and needs would be helpful.

Greetings
Horst
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