See: http://www.aero-news.net/index.cfm#d

Well, it wouldn't work for me but the idea might be developed into a
pre-solo trainer. . A one hour duration could translate into 45 minute
instruction sessions costing $50. Dunno...might work for a flight school.
No cross country, of course. That would require a piston engine.

New lithium phosphate cells can be recharged in 5 minutes - if you have
access to a VERY high amperage charger

Bill Daniels