Which would obviously bring its share of problems. If the batteries hold the concentrated energies of Pokémon attacks, then even a small crack risks the lightning bursting out and delivering a nasty shock to its owner, both literally and figuratively speaking.

[Blown fuses are one thing, but surely there's a risk of injury as well. With so many children traveling this world, extra care is a necessity.]

I wonder if there's a way to stabilize the energy. You said that people in your world utilize a similar technique; how have they managed to keep these batteries in check?