Apple’s battery case for the iPhone 6 made news for being weird, but it was a decent concept. Tech21 seems to have seen it as a challenge, so it created the Evo Endurance case. If you’re not familiar with Tech21, they’ve got an impressive polymer that flexes to protect your phone against damage when dropped. If you’ve ever run into Tech21 at an event, you’ve likely seen them wrap a hand in that orange polymer and hit it with a hammer. Evo Endurance also has some advanced battery technology buried within. The 1800mAh battery is Lithium Ceramic, which Tech21 claims will…
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