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Author Topic: Electricity and water  (Read 935 times)
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I meant post a photo of the device to be charged, (not the charger).

That's what I thought you meant.

How does it matter what device needs to be charged until the OP figures out some means to produce a charging current?

...R
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How does it matter what device needs to be charged until the OP figures out some means to produce a charging current?

What difference does it make what we think of if we have no idea how to connect it or even if it is possible to connect it ?
And when you find that out , you may discover that it was a waste of time because whatever you thought you were going to do won't work because the way it is wired or some other issue related to connecting to the device. Do you know how to charge it
wirelessly ? (right, exactly) . I don't think the sonic toothbrush charging scheme will work in this case so we need to know those details before we can figure out a way to do it. I think we should just drop the whole thing now until the OP provides that information. This is a  total waste of time with no intel. Good luck.with that.
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It seems to me far more likely that it would be possible to connect to the chargee (!) than that it would be possible to make the chargor (!).

...R
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It seems to me far more likely that it would be possible to connect to the chargee (!) than that it would be possible to make the chargor (!). 
I don't know what you mean by this Robin. My post was about knowing how we can connect to the item to be charged with no information about how to connect (wiring etc,schematic , connector pinout , all the usual stuff) . I don't really follow your response or the significance of the explanation points. Can you enlighten me please ?
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Sorry if I was confusing. I was using made-up words chargee and chargor similar to the words words lessee and lessor used by lawyers. (The chargor produces the power and the chargee receives it smiley) (Maybe I have it the wrong way round).

What I mean is that it seems very unlikely the OP will devise a satisfactory mechanism for generating a useful amount of electricity from the falling water. Until there is a slight prospect of that being successful I don't see any need to waste the OPs time worrying about electrical connections. For me the generator is the priority and the principal obstacle to success.

Anyway, most electrical power connections can be tamed with a wire cutter and soldering iron. smiley

...R
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I need to recharge an object (30 cm height) electrically with the water flowing therethrough occasionally. 1 min = 15 litters of water. This object is connected at the smartphone with wifi. I thought of a micro hydro turbine. But I haven't found it yet. Does anyone have an idea?
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I thought of a micro hydro turbine
If you're talking about this why not just take miniature waterfall powered by a dc motor and use it as a generator ? If she can't find
one she can make one out of lexan disks with aluminum strips riveted at a slant with a hole in the center of the disks.
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If you're talking about this why not just take miniature waterfall powered by a dc motor and use it as a generator ?

See Reply #9

...R
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I give up. Have fun.
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Hi guys,
Thank you for your answers. I think the solution is : http://www.seeedstudio.com/depot/36v-micro-hydro-generator-p-634.html
it will be big but it's a first approach smiley
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I am unsure whether that device will be suitable. It mentions, for example, generating electricity from the flow to a shower. Domestic water systems work with a pressure of about 1.5 bar (maybe more) which is equivalent to a pressure head of about 15 metres. Your water supply only has a head of 0.3 meters.

My guess is that you need a device that works with a much lower water flow speed and consequently a much greater cross-sectional area.

...R
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