That does seem to be the current model for fast recharges. It's not out of the question, but these are going to be extremely big batteries and the planes, batteries, and auxiliary equipment need to be designed for it up front. The thing with planes is that design is extremely expensive and design costs are expected to be amortized over a long lifecycle, which means that a technical constraint today could end up being very costly if the constraint goes away in the near future.

Wright Electric likely knows all this and is working on it...a partnership with a low cost airline would surely inform them of what is needed for success. I'm just complaining that the article is not very substantive.