Is there an alternative out there to the 85W brick that comes with the new 15" MBPs? I would like to use a generic USB-C cable and a generic power adapter with USB-C (or USB-A) to charge my MBP at work, so I can leave a charger at each location. But everything I've tried so far (various Anker USB power hubs) don't provide the necessary power to charge the laptop. Has anyone found anything yet?