LAS VEGAS--Want to charge your tablet while traveling? Hope you brought along a power brick, because a simple sync cable won't do the trick. That's because most laptop USB ports don't put out enough power for a tablet's big battery -- which is why you typically see a "Not Charging" message when you plug an iPad into a laptop.
The Digital Innovations ChargeDr promises to boost the power output of both laptop USB ports and wall adapters. Car chargers, too. The result: tablets can charge up to four times faster, phones up to two … Read more