Imagining alternative iPhone power sources

Posted to Infographics  |  Tags: , ,  |  Nathan Yau

Lithium-ion batteries power the iPhone (among other things), but what if we could use a different power source like coal or diesel? With some back-of-the-napkin math, Jon Keegan for the Wall Street Journal imagines what if. It’s all about the body fat-powered iPhone with nine days of battery life.

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