Business travelers have grown accustomed to finding creative ways to keep their mobile devices charged as they move about the country, and in recent years, a number of products have popped up to help them do just that. For example, companies such as Energizer and Panasonic offer portable charging devices that can keep smartphones full of power; meanwhile, Apple enthusiasts can turn to the HyperJuice system to keep their MacBooks running. Still, it's a good idea to charge your devices before starting your trip, notes Darren Murph of Engadget.

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