Charjabug is a small cuboid insect-like Pokémon consisting of 3 segment with brown stubs as legs. Its face has squarish blue eyes and two gray jaws that close sideways in the center of its face. Additionally there are two yellow spikes.
Charjabug is relatively immobile in preparation for its evolution, often staying half-buried in the ground. It has the ability to store enough electricity that it could run a household for an entire day. It can share its electricity with other Pokémon.
Its name seems to be based on a combination of charge or charger and bug.