The pocket-sized hub has an adapter-sized slot built into a 1500mAh backup battery pack that, when fully charged, provides enough juice to bring a dead phone back up to 70%. Of course, it also functions as a standard charger for when you do have access to a power outlet, bringing the phone to full power first before restoring the internal backup battery, whose power status is indicated by a built-in LED dial. Your move, Apple.
Joe McGauley is a senior editor at Supercompressor. He has been known to throw a toddler-calibur tantrum every time his phone dies.