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nPower Peg Stores Kinetic Entergy to Charge your Smartphone


While reading one of my favorite magazines (The Week) this weekend I ran across an interesting tech toy called the nPower Peg. This device is currently backordered but you can preorder the next batch for $159.99. The idea of this expensive toy is that it stores the kinetic energy from you walking and running and translates that into power by charging its internal 1000mAh battery. It then uses any of the popular iGo charging adapter tips to charge your device. Seems kind of futuristic and green friendly right? The only problem is in the math. Here is the examples they give for kinetic energy generation:

  • 1 minute of walking provides approximately 1 minute of listening time on an iPod Nano
  • 11 minutes of walking provides approximately 1 minute of talk time on a 2G phone call (iPhone 3G)
  • 26 minutes of walking provides approximately 1 minute of talk time on a 3G phone call (iPhone 3G)

If we compare for example the BlackBerry Torch 9800 which has 5.5 hours of talk time on 2G and 5.8 on 3G that is quite a bit of walking. We are talking 60.5 hours of walking to get the equivalent of a full charge. Keep in mind that is nowhere near exact math but still we are talking more than a full day of walking…

Either way if you are feeling green check out the nPower Peg at

4 total comments on this postSubmit your comment!
  1. I’m just guessing it depends on your body motion, primarily up and down. I don’t think walking is meant for that type of motion.
    Running and having it attached to your foot maybe, attached to a dynamo on a bike but not walking.
    Might come in handy during a marathon but by the time my BB boots, it will shut off again…lol

  2. What is “Entergy”? 🙂

  3. Is that what happened to his hair?

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