Power banks are great to have around, except for the fact that they need to be charged before they can be of any use. The folks at Uiee (I just sound silly trying to pronounce that) have a smart solution: its puck-shaped power bank comes with a fold-away plug so it can charge itself – as well as your mobile device – when connected to a wall outlet, and is then ready to power your phone on the go. There’s not much to it: just flip out the folding prongs, pull out the retractable cable and you’re off to the…

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