Enough wrestling with the wind, and a pod's battery would run down. Then 
it would swim over and nuzzle its neighbor. The two would mate in midair, like 
dragonflies, and the weaker would take power from the stronger. The system 
included larger aerostats called nurse drones that would cruise around dumping 
large amounts of power into randomly selected pods all over the grid, which 
would then distribute it to their neighbors. If a pod thought it was having 
mechanical trouble, it would send out a message, and a fresh pod would fly out 
from the Royal Security installation beneath Source Victoria and relieve it so 
that it could fly home to be decompiled.