Nio, a Chinese automaker, recently introduced the rather ambitious idea of subscription based swappable batteries. So you just swap out battery packs as you do with your Xbox controller? Well, no. You don’t do it. The ‘Nio BaaS’, meaning ‘Battery as a Service’ subscription model means that special Power Swap stations will allow owners to swap out batteries in a matter of minutes, with the option of different battery sizes in accordance to the subscription pack. Apparently, an average of three to five minutes is enough for you to be out with the old, in with the new, and hit the road.