Look, you don’t have to talk to us like we’re imbeciles. We know what you’re referring to. Just because such a device works for mechanical watches that doesn’t mean it will work for electronic ones. I won’t speak for everyone else, but personally I seriously doubt the mechanical motion you’re talking about will generate anywhere CLOSE to the even tiny amount of electricity you’re describing. Do you seriously think nobody has thought of this? It’s not like this is a problem that only came around with the advent of smart watches. People have been looking for ways to power a watch indefinitely even since the first quartz watches came around in the 1970’s. Nobody has sold such a product even to power the most basic Casio watches. What makes you think it will suddenly work for an Apple Watch?
And before you say it, I understand that what you’re saying is that it might extend the battery a little bit and that if it made so that you only had to charge every other day, or even less, it would be worth it. What I’m saying is that I bet you would be lucky to get even an additional 5 minutes out of such an arrangement.
I think maybe you misunderstood my idea. I never said the component was mechanical, in fact I said it would be electrical. The perfect component would be an electromagnetic inductor running the height, for example, of the watch.
Ex. Create a cylindrical tube containing a very low viscous solution inside. This tube would be completely sealed. And inside the tube within the solution you have your magnet. Around the tube you have the copper wire and as so then as you move your wrist back and forth, up and down, the magnetic inside the tube pendulates/oscillates back and forth and generates a small amount of current to feed into the battery.
Now there are many variables to play with, such as the size of the magnet inside the tube, the gauge of the wire, the overall size of the generator, how fast you move your wrist throughout the day, etc, etc, etc, etc and playing and discovering the best specs would take more time than I have, so maybe someone else who has the time can do this..
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I understand completely. You want to provide 9/10ths to 29/30ths of the watch's power needs through movement.
The existing battery capacity and battery life provide guidance as to how much trickle charge the movement must provide. Given existing info, this means your trickle charge mechanism must produce approximately 0.8Wh per day to achieve your stated goal of only having to charge the watch 1/10 or 1/30 as many times as you would now.
You earlier stated the following, indicating you thought this was possible today -- but now you don't have any idea of what sort of power the typical user would generate nor how much power the watch would require.
It's clear now this just a fanciful thought on your part and you haven't really worked out the numbers to see if it is or is not currently feasible.
Do your CAD device and make some measurements, then come back to discuss.
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Use something like RunGap app to directly extract the Activity data. Here's a run of mine that uploaded to Garmin Connect via RunGap. Although the AW is not as good as a dedicated Garmin running watch for doing HR zone training, it does work reasonably well.
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1/10 or 1/30 is just an example, not something I'm sticking to as a hard number.
And generating a device is possible today, it's very simple actually. It would be a simple electromagnetic inductor! The idea of knowing what the "power the typical user would generate" would be outside the scope of this thread as every user is different. And not only is every user different but different every day.
So this isn't a fanciful idea, I'll describe an example of the electrical component verbally.
Ex. Create a cylindrical tube containing a very low viscous solution inside it. This tube would be completely sealed. And inside the tube within the solution you have your magnet. Around the tube you have wound copper wire and so as you move your wrist back and forth, up and down, the magnetic inside the tube pendulates/oscillates back and forth and generates a small amount of current to feed into the battery from the wound wire.
Now there are many variables to play with, such as the size of the magnet inside the tube, the gauge of the wire, the overall size of the inducting generator, how fast you move your wrist throughout the day (did you take that spin class?), etc, etc, etc, etc and playing and discovering the best specs would take more time than I have, so maybe someone else who has the time can do this..