By Jason Poel Smith
- Posted 2013/05/06 @ 12:10 pm
- Category Computers & Mobile, Electronics
What do you do if the power is out, but you need to charge your cell phone to make an emergency phone call? In this episode of DIY Hacks & How To’s, I show you how to tap the power flowing from your phone line.
There is a small amount of electricity that is constantly available in a phone line. This is what powers traditional corded phones. Because the phone system is independent of the power grid, the phone line generally even has power during a black out. While this is not a lot of power, it is enough to charge your small electronics such as your cell phone or other USB device. All you need is a simple voltage regulator circuit.
Complete step by step instructions can be found at:http://www.instructables.com/id/How-to-Get-Emergency-Power-from-a-Phone-Line/
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