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Small power source Answered

I was planning to make LED jewelery, but would need a very small power source.
In the best case it could be powered by the body's movement.

Is there anything small enough to bit on a wrist, yet can power about 10 LEDs?

Discussions

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MajorRockstar7
MajorRockstar7

11 years ago

 I would use a car battery
Just kidding unless you are trying to kill yourself
Probably a watch battery and there are some amazingly thin & small ones

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nnadine1973
nnadine1973

Reply 8 years ago

car battery=12v . He will do not kill himself, in any case. When you don't know, don't speak.

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revelae
revelae

11 years ago

you could use a charging system like in "Shake it like a Tic-Tac"

although, there is some debate in the comments about how to wind the coil, how much to wind, etc.

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itsthatsguy
itsthatsguy

11 years ago

yes, and no, if you mean super small, you could light 10 led's for up to 10 seconds, if you mean liek watch battery size, then ya a cfew hours of use.