[lucb1e]

> I always wondered whether they knew

Surely you don't mean that they'd have an understanding what the function of a battery is, so I'm not quite sure what you mean?

[tbabb]

They might not know how it works, but they might have learned that it's the part to pull on to make the drone "die".

[brokenmachine]

It's probably just the easiest part to grab with a beak.