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kayakmadison
 Post subject: Battery for circuit question
PostPosted: Thu Aug 16, 2012 10:05 pm 

Joined: Tue Oct 04, 2011 7:08 pm
Posts: 4
Hopefully an easy question for one of you:

I want to build an LED hula hoop with 21 LEDs, each 3.6V. I need a battery with the appropriate voltage that will fit within the hoop with an inner diameter of 1/2". I also need this battery to be rechargeable since I do not want to open up the hoop each time the battery is discharged. Any suggestions?

These are the bulbs I want to use: http://www.radioshack.com/product/index ... Id=2062550

Thanks!
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