1+2+3 Shaker Flashlight Modification
Powering small electronics with your muscles. 
You will need: Shaker flashlight, wire, small Phillips screwdriver, soldering iron, solder
How a Shaker Flashlight Works
A shaker flashlight has a bright LED, a NiCad battery, and an electrical generator made from a coil of wire and a cylindrical magnet. When you shake the flashlight, the magnet slides within the coil to charge the battery. Shaker flashlights provide about 2 to 4.5 volts but produce a very low output current, so there will be limits on their ability to supply power to devices. Recently Walgreens stores offered one for just $5.
1. Modify ...
Get Make: Technology on Your Time Volume 08 now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
