Could you not have a solar drone barge for a fast charge mid-trip, extending the operating range by double? Seems like a simple way to bridge the gap until higher battery density is available.
For a 360 mile trip, adding 45 minutes for a fast charge (in certain this could be reduced to <25 minutes with modern battery architecture) would still net you out much faster than an train or short haul flight inclusive of airport time on both ends.
For a 360 mile trip, adding 45 minutes for a fast charge (in certain this could be reduced to <25 minutes with modern battery architecture) would still net you out much faster than an train or short haul flight inclusive of airport time on both ends.
This brings LA->SF journey well within reach.