On 10/20/2014 2:47 PM, wrote:
How do these work? (I generally believe it has some sort of Piezoelectric generator)

What if it stopped (I didn't use it for a few days)?

Does it have any battery which after a few years needs replacement?

Any chance I can find out what battery Curren M8039B uses so I only open it once?

And see what's inside (schematics) before I risk breaking it?

much obliged

Probably more information here than you need.

http://www.youtube.com/watch?v=o8YUM2Y2vvY

http://en.wikipedia.org/wiki/Quartz_clock

http://en.wikipedia.org/wiki/Quartz_clock




(I was once at a lecture where someone used a piezo generator with a device
that created eddies in forest fires so they could call in the fire on a
cellular network without battery or wired power. I thought it was so cool I
found this ten buck watch that worked that way.)


HUH?
Mikek


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