Has anyone here tried charging from an external battery or a USB charger such as an iPad charger? There's an article on Techcrunch that reports that it will work very slowly (see http://techcrunch.com/2015/04/13/ch...-battery-pack-with-monoprices-10-usb-c-cable/), but I'd be interested in hearing if anyone has found any chargers or batteries to either work or not. I'll try it myself once I get the right cable later this week.