What's the first application you think of when I say the phrase "vibration-powered self-generating battery"? Me too, but let's keep this clean.

The faux-batteries are from Brother Industries, and inside the AA and AAA-sized shells you'll find a capacitor and an electromagnetic induction generator. Shaking them will charge the capacitor enough to juice low-power gadgets. The example given is remote control, which needs around 40 to 100mW of power. The battery can put out up to 180mW, so while you won't be using these to power a camera-flash, a quick shake to get the TV remote going again would work just great. In fact, you could just build this in to a remote and forget the batteries altogether.

Ok, so I couldn't stay clean for the entire post. As one commenter on the Gizmodo post about these batteries points out, pop a few of these inside a vibrator and boom! You have perpetual motion.

Vibration-powered Generators Replace AA, AAA Batteries [Tech-On via Giz]

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