“Perhaps in the future, they’ll have the batteries added after they reach their destinations, “
How will they ship the batteries?
“How will they ship the batteries?”
Probably pack them on a smaller boat with good escape means, and if the boat lights up, so be it, still only 10% of the loss for the same load of batteries.
If you put an Eveready under your pillow before you go to bed, then the EV Fairy will deliver a complete battery pack while you sleep.