>There are commercially available high-energy cells that provide ~900W/kg. Can you please provide more information? My understanding is the best lithium is und

>There are commercially available high-energy cells that provide ~900W/kg. Can you please provide more information? My understanding is the best lithium is under 400wh/kg. Edit: Sorry looks like you are talking about power density not energy density (watts vs watt/hours). My understanding is range (energy density) is the problem not power output. Cruise takes about 1/3 the power of takeoff so maybe an hour of flight with 5 Mwh?