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DIY: How To Turn a Playing Card Into a Solar-Powered Battery Charger
Posted By Timon Singh On August 17, 2012 @ 5:43 pm In DIY,Recycled Materials,Renewable Energy,Solar Power | 1 Comment
A few weeks ago we shared Instructable ‘s handy DIY guide to building your own solar-powered USB charger . Now, the website has provided a guide to creating a solar-powered charger for rechargeable NiMH AA and AAA batteries  with a twist – it’s made from a playing card!
This cheap and easy project only takes 10-15 minutes to do, however you will need a couple of PV silicon cells . Other than that, they only parts you really need are a playing card, some solettes, some magnets and super glue. Solettes can be purchased from suppliers in China, such as these .
The complete material list is: copper tape with adhesive backing, super glue, a couple of playing cards, 4 NdFeB magnets between 1/4″ – 1/2″ diameter, 1/32″ - 1/8″ thick, 4-8 solettes (depending on what type of additional indicators or dark-current blocking diodes you add to the basic charger) and a few AA rechargeable batteries.
Optional extras include a schottky diode , an indicator LED  and some form of rigid backing such as a scrap piece of 1/8″ thick acrylic. Once you’ve assembled all those parts, you’re good to go!
Click here to download a PDF of the complete instructions  or alternatively, watch the below video.
+ Instructables 
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 Instructable: http://www.instructables.com/
 DIY guide to building your own solar-powered USB charger: http://inhabitat.com/create-your-own-diy-solar-powered-usb-charger-for-all-your-portable-gadgets/
 rechargeable NiMH AA and AAA batteries: http://inhabitat.com/tag/rechargeable-batteries/
 PV silicon cells: http://inhabitat.com/tag/crystalline-silicon-photovoltaic-cells/
 such as these: http://manilamantis.wordpress.com/2012/04/25/the-dark-side-2/
 schottky diode: http://en.wikipedia.org/wiki/Schottky_diode
 LED: http://inhabitat.com/tag/led/
 Click here to download a PDF of the complete instructions: http://www.instructables.com/id/Turn-a-playing-card-into-a-solar-charger-for-AA-ba/#
 + Instructables: http://www.instructables.com/id/Turn-a-playing-card-into-a-solar-charger-for-AA-ba/
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