system
Given the following post, respond as if you're commenting on Reddit:
human
[PokemonGo] Why are Pokeballs not re-usable?

I don't get it. I tossed a Pokeball at a Zubat I found in some grass, and missed - but now it's gone forever! I swear I saw exactly where it landed, it couldn't have rolled far...
gpt
Okay, so part of the way a pokeball works is that it actually draws in a pokemon that's thrown at it and creates a temporary pneumatic seal to hold it in. As you can imagine, this is quite energy-intensive, and because the companies that make pokeballs need a source of income, they use proprietary batteries that cannot be changed or recharged except at the factory. Once you prime a pokeball to throw, it's going to expend its charge no matter what you do. (Incidentally, this is why it is important to collect your missed pokeballs after you're done with them and take them in to a recycling center.)

Ordinarily by the time this seal has failed on a successfully caught pokemon, it is no longer necessary, as the Pokemon decides to submit to the skill of its trainer and the comfort of the simulated environment inside the ball.