Small power source
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?
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?
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Nov 3, 2009. 9:19 AMMajorRockstar7
says:
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
Just kidding unless you are trying to kill yourself
Probably a watch battery and there are some amazingly thin & small ones
Yes, these things:
www.instructables.com/community/Cheap-Lithium-ion-batteries-help/
40x35x6 mm, 760mAh 3.7V
L
www.instructables.com/community/Cheap-Lithium-ion-batteries-help/
40x35x6 mm, 760mAh 3.7V
L
Nov 2, 2009. 9:13 AMrevelae
says:
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.
although, there is some debate in the comments about how to wind the coil, how much to wind, etc.
Oct 30, 2009. 9:55 PMitsthatsguy
says:
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.
Oct 29, 2009. 7:31 AMDemonDomen (author)
says:
Something like this would be great: www.gizmag.com/micro-generator-produces-ac-power-from-movement/10390/
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