Keeping your rapidly draining iPhone 5 or 5s battery juiced on the go without wearing out the seams on all your pants pockets, the Jackery Leafis a new two-piece external battery case system that allows you to ditch its modestly bulky battery — while keeping the device fully protected — when you're not using it.
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The base layer looks just like any other typical case save for a small keyhole-shaped opening, which the battery-equipped outer layer (the black piece in the above photo) snaps into . And when it is snapped in, a small indicator light will let you know how much power's left of the 110 hours additional operation time it's designed to provide.
Joe McGauley is a senior editor for Supercompressor. He booked work as an extra in Jumanji in the third grade.