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This is Scientific American's 60-Second Tech. I'm Larry Greenemeier. Got a minute?

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Most smartphone batteries will get you through the day on a full charge.

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As long as you stay away from apps that are constantly connecting to the network, are poorly written and put a heavy load on the processor.

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But which apps are battery hogs?

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A team of UC Berkeley and University of Helsinki researchers is tracking Apple and Android users to find out.

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For iOS, music is the most popular app, but the traffic and navigation app Waze is the fastest way studied to drain your battery.

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Some of the most power-hungry Android apps studied are the Men In Black 3 game and the TeleNav GPS Navigator.

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The researchers got their data through a free battery-tracking app they¡¯ve written, called Carat.

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It's not the only app that does this, of course.

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But since it's been downloaded more than one million times by study participants, Carat has helped the researchers create a chart of the 200 most power-hungry apps for each operating system.

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Now if they could just come up with an energy-efficient app that keeps the big new iPhones from bending.

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Thanks for the minute, for Scientific American's 60-Second Tech. I'm Larry Greenemeier.

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