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For everything smartphones can do these days, they sure don't have a lot of battery power to do it. Fortunately, there's ZeroLemon, a team of self-proclaimed smartphone enthusiasts who take their company's name quite literally by designing smartphone batteries and battery cases that are anything but lemons. (That would be a "lemon" in the defective sense, by the way — although technically the company doesn't produce the edible kind of lemon, either.)
More about Tech, Iphone, Chargers, Battery Case, and Batteryvia Zero Tech Blog