Making the battery replaceable by heavy equipment would drop the turnaround time for these. The planes fly regular routes (mostly), and could store a few extra batteries at their regular destinations.
Odd added benefit: the potential ability to jettison a huge part of the weight in extreme emergencies to increase flying time by the backup ICE system.
Odd added benefit: the potential ability to jettison a huge part of the weight in extreme emergencies to increase flying time by the backup ICE system.