Has anyone had any experience charging the Phantom 2 battery with a mobile battery pack? I carry two Anker Astro Pro2 20,000 mAh batteries on trips to charge laptops, phones and power my timelapse camera motion controller. The batteries are amazing for charging everything except the phantom battery. http://www.ianker.com/product/79AN20L-SA I should be able to charge the Phantom 2 battery several times with one of these battery packs and the output voltage is appropriate at 12V but I don't have any way on connecting the phantom 2 battery because of the connection type. I'm not keen on DIYing connectors myself, does anyone know if there are any off the shelf options to connect these things? I often find myself no where near an electrical outlet to charge batteries and I'm sure this is a problem for other people as well.