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Vodaphone Bringing Phone Charging to Your Pockets and Sleeping Bags

Vodaphone knows that festival goers like their phones and have a hard time keeping it charged. That’s why they are teaming up with researchers to bring printed charging modules for your pockets and sleeping bags. The technology uses your body heat to add power to your smart phone.

Stephen Beeby,  Professor of Electronic Systems at the University of Southampton describes how easy it is to create pliable chargers:

Basically, we’re printing down pairs of what are called ‘thermocouples. You print lots of those down and connect them up to make a thermoelectric module… One side of that is cold and the other is hot, and when you get a flow of heat through it you can create a voltage and a current. Voltage and current together equals electrical power.

How effective is the charger? A night of sleep will give you an average of 24 minutes of talk time and a day of walking and dancing will give you four hours of charge. That’s pretty useful if you are dancing your days away in the summer heat (I don’t think there’s too much sleeping involved in music festivals).

Chargeables such as these might be available within the next ten years. In the meantime, bike power is the easiest source of self-powered chargers at music festivals - like these at Coachella.


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