Portable backup batteries are essential for breathing life into overexerted gadgetry. Our favorite is the Innergie PocketCell. It's small and easy to store, with a 3,000-mAh battery that can recharge almost every phone (or tablet). But its best feature? Its smart cable, which nests 30-pin, micro- and mini-USB connectors, freeing you from bringing additional cords. [$80; myinnergie.com]
The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
The Interpreters We Left Behind
The Rise of Cyclocross
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