Instructables: exploring - technology - electronics - battery - led - featured http://www.instructables.com Thu, 23 May 2013 20:02:16 PDT BLOX v1.01 PowerTube Vr. 1 for bicycle headlight http://www.instructables.com/id/PowerTube-Vr-1/
PowerTube Vr. 1 for bicycle headlight - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FZC/6I4T/HGH6Q3O0/FZC6I4THGH6Q3O0.SQUARE2.jpg http://www.instructables.com/files/deriv/FZC/6I4T/HGH6Q3O0/FZC6I4THGH6Q3O0.SQUARE.jpg http://www.instructables.com/files/deriv/FZC/6I4T/HGH6Q3O0/FZC6I4THGH6Q3O0.SMALL.jpg frapedia Recently purchased one of those bicycle lights using the XML T6 LED x3. Came with a 18650 8.4v 6400mAh Battery Pack and a Pouch with Velcro. The headlight has a voltage status function via a multi color LED but to be honest i am not satisfy with what function so i decided to add a voltage meter....
By: frapedia

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Sat, 11 May 2013 15:43:09 PDT
How to Make Batteries From Spare Change http://www.instructables.com/id/How-to-Turn-Spare-Pocket-Change-into-DIY-Batteries/
How to Make Batteries From Spare Change - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FB1/FGBI/HAVGJYI6/FB1FGBIHAVGJYI6.SQUARE2.jpg http://www.instructables.com/files/deriv/FB1/FGBI/HAVGJYI6/FB1FGBIHAVGJYI6.SQUARE.jpg http://www.instructables.com/files/deriv/FB1/FGBI/HAVGJYI6/FB1FGBIHAVGJYI6.SMALL.jpg The King of Random See The Video! What's a penny worth these days?  Not much, but could there be some free energy hidden inside your spare pennies? You'd be surprised! Watch the video to learn how you can put together stacks of pennies to form makeshift batteries that can drive small-current devices like LEDs a...
By: The King of Random

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Sat, 5 Jan 2013 16:07:15 PST
Battery voltage monitor http://www.instructables.com/id/Battery-voltage-monitor/
Battery voltage monitor - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FUN/UMKM/H9G15QG0/FUNUMKMH9G15QG0.SQUARE2.jpg http://www.instructables.com/files/deriv/FUN/UMKM/H9G15QG0/FUNUMKMH9G15QG0.SQUARE.jpg http://www.instructables.com/files/deriv/FUN/UMKM/H9G15QG0/FUNUMKMH9G15QG0.SMALL.jpg chunkyhampton This voltage monitor has been designed to remotely display battery voltage so that people monitor and maintain their batteries easily. It was designed for use on off-grid reneable energy systems (such as my solar PV system), but it would also be useful to anyone who has a lead-acid battery, such as ...
By: chunkyhampton

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Wed, 14 Nov 2012 03:43:59 PST
6 Cent LED Throwie http://www.instructables.com/id/6-Cent-LED-Throwie/
6 Cent LED Throwie - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FVT/BZ8A/FUF36MQ3/FVTBZ8AFUF36MQ3.SQUARE2.jpg http://www.instructables.com/files/deriv/FVT/BZ8A/FUF36MQ3/FVTBZ8AFUF36MQ3.SQUARE.jpg http://www.instructables.com/files/deriv/FVT/BZ8A/FUF36MQ3/FVTBZ8AFUF36MQ3.SMALL.jpg drinkmorecoffee Make an LED Throwie for 6 (six) cents - it's the cheapest Throwie ever! LED Throwies are popular contraptions made of a battery, an LED, and a magnet all taped together. This version does not include a magnet, although it could. This project uses the same principle as Tool Using Animal's Penny Bat...
By: drinkmorecoffee

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Fri, 8 May 2009 13:13:27 PDT