by When the power grid is close at hand, most smartphones and tablets have no problem lasting through a full day. But take that plentiful electricity away, and keeping our gadgets going becomes more difficult—despite many recent advancements, battery technology hasn’t kept up with our constant need for more power. And given that these days we’re taking our gear to more—and more-remote—places than ever before, having enough durable power is even more of a challenge.
Of course, some will argue that taking technology camping, for example, is silly when you’re trying to escape the trappings of city life. But a mobile phone can, quite literally, be a lifesaver in an emergency, and portable power does more than keep your iPhone running longer, since all sorts of devices, from radios to hand warmers to flashlights, can use a USB port as a source of power. Even in an urban setting, you want to be sure your mobile devices continue to work when the power goes out, especially given the ever-quicker demise of landline communications.
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