Eco Factor: Concept battery with a built-in electricity generator.
Designed by Song Teaho and Hyejin Lee, the finger-powered battery is what will keep your talks going for those extra minutes before you have access to a wall socket. The concept isn’t built on a green theme, but does keep your chats lasting a wee bit longer by harnessing renewable energy.
The battery features a built-in generator, which produces a few milliwatts of electrical power whenever it is rotated around your finger. The designers claim that rotating the battery 130 times on your finger can generate enough energy for 2 minutes of talktime.
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