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The Cell Phone Energy Diet

GREEN IS GOOD
by Margaret Smith

For many people today, it's safe to say that having a cell phone is a necessity. Your cell phone is like a ready-made life raft of sorts, just ready and waiting to keep you afloat.

Well, almost always ready. When it doesn't unexpectedly die on you, at least.

Imagine, for a second, that you're stuck in the middle of nowhere and your car breaks down. Pulled over to the side of the road, you take you're cell phone out of your pocket. You're about to dial a number, when suddenly you peer down at the battery life and realize that your on your last bar... and it's flashing.

Uh-oh.

Your heart's in your throat as you start to dial. Then suddenly... CLICK. The screen goes dead.

"Wait, what? My cell phone's dead? Why is my cell phone dead? And there's no outlet plug in sight! What am I going to do?!"

Well, Aaron LeMeiux seems to have found that answer.

It comes in the form of the Personal Energy Generator (PEG), developed by LeMeiux's company Tremont Electricity. About the size of your average flashlight, the PEG takes the kinetic energy humans develop through physical activity and uses it to recharge small, electronic devices such as your phone, camera, or iPod.

Most mobile electronic devices only require 2.5 watts of power to fully recharge themselves, LeMeiux told NPR.

"So, in the end, all we have to do is harvest 2.5 percent of your human walking energy, without you knowing it, and put it in your mobile electronic device," he said.

The PEG does just that. Place it in your bag or on your hip, attach it to the device that you need to charge using a standard USB cord, and the PEG does the rest. With each step you take, magnets inside the generator bounce back and forth off the springs inside it, creating electricity. According to LeMeiux, a leisurely walk could produce the same amount of wall-outlet-level power.

LeMeiux came up with the idea when he was stuck in the middle of nowhere -- literally. As the story goes, he was hiking along the Appalachian trail, but he would constantly have to stop at small towns along the way to buy new batteries for his Walkman. For a mechanical engineer like himself, it was a problem just waiting to be solved.

And it could also be the solution to a bigger one. Technology has always been a source of comfort for most people; something that is intended to make our lives easier. But with cell phones, iPods, video games, travel-sized computers and even remote controls, it's arguable that they've made us lazy. Obesity is one of the largest health problems in the United States today, and according to the Center for Disease Control and Prevention, only one state in 2008 had a prevalence of obesity less than 20 percent (Colorado).

Using human energy to create electricity isn't a new idea. For years "self-proclaimed eco-nuts and human power enthusiasts" have been using physical activities to fuel small devices in their everyday lives. Could LeMeiux's PEG be the first mainstream device to help create renewable energy and solve the health problem here in America?

We here at BuzzFlash think so, at least. And how? With The Cell Phone Energy Diet. Step aside Atkins, watch out Weight Watchers and move over South Beach Diet, because we have the newest diet craze.

The rules are simple:

1. Buy Tremont Electricity's PEG
2. Throw your cell phone charger away.
3. Walk at least an hour a day so you can recharge your cell phone.
4. Get the exercise and energy life you need!

Even if you're not going to use the PEG, we all know someone who's hard to shop for and also a little too soft around the edges. Tremont Electricity hopes to have the $149 PEG ready for consumers closer to the holiday season.

GREEN IS GOOD


Was $149 for the PEG a typo?

I am astonished to see this gadget priced at $149 each.  I have a flashlight that consists of a small hand cranked generator, a rechargable battery, an on-off switch, and a small cluster of white LEDs.  I got this flashlight for all of $10.  A minute of cranking will provide 10 to 15 minutes of light from the LEDs.  I can't see why a hand cranked generator like the one in this "wind up" LED flashlight couldn't be used to recharge a cell-phone battery.  All that is needed to convert my "wind-up" flashlight into a cell phone charger would be a simple cord plugged into the flashlight on one end and into the cell phone on the other end.  A few minutes of slow but steady cranking should do the job.

The Personal Energy Generator, or PEG, is based on a magnet moving back and forth inside a tube, but that happens only while the person carrying it is moving.  The electrical output from the PEG comes in the form of a small burst of power each time the magnet moves back and forth.  However, a hand cranked generator simlar to my "wind up" flashlight, produces a steady stream of power, for as long as I turn the crank.  So, if I discovered my cell phone was dead, I would much rather "wind up" it up again with a few minutes of steady cranking, than by walking around for an hour. 

The concept behind the PEG is called energy harvesting.  This is a concept the Department of Defense has been looking into for some time, as a way to make sure a soldier's radio and GPS receiver will have the power to work when they are needed.  The radio and GPS would be kept charged with energy harvested from the normal activity of a soldier, as long as the energy harvesting does not interfere with the activity of the soldier in any way. 

Priced at $149, I think this "energy harvesting" cell phone charger is going to be  just another gadget for the "executive" who already has everything. 

An analog gray hair frantically clinging to the trailing edge of technology. :-)