Researchers created a Game Boy that doesn’t need batteries – Engadget

Instead, all you need to play this Game Boy, officially called the Engage, for hours on end is some sunlight and frantic button mashing. The solar panels attached to the front of the device provide its primary source of power, with your button presses helping to generate additional power.
It’s not a perfect system and there are some major drawbacks. When it’s not too cloudy outside, you can get about 10 seconds of uninterrupted gameplay from the Engage Game Boy before it needs to shut down for…

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