Charjabug are often mistaken for unitary individuals, much like their larval form of Grubbin, evolved form of Vikavolt, and indeed the overwhelming majority of pokemon. In truth, as many of their trainers have observed, each of the pokemon's three identical segments have eyes of their own, and electric charges allow Charjabug segments to stick to the one in front as long as their mouth is closed. While anyone who trains them soon notices that Charjabug have quite sensitive legs, it can take far longer for them to realize the reason for this; the difference between antennae and legs on these pokemon is simply one of positioning.

It is often said that electricity is the spark of life, and if so, it easy to understand how this quality of Charjabug developed; Grubbin were already alive, so evolution into an electric pokemon added more lives to Charjabug. These "lives" or segments allow wild Charjabug to never be attacked in their sleep, for whichever of the three is in front is always awake enough to avoid predators. And Charjabug trainers are often impressed with the remarkable endurance and large electricity reserves of their pokemon; although back segments can still be wounded in battle, it is quite rare for them to suffer fatigue or meaningfully deplete their power. A few creative-minded trainers even try to teach their Charjabug to work together in more innovative ways, such as rolling up into a wheel or separating to use Tri Attack. But as soon as they learn to function in battle while not attached to one another, Charjabug will inevitably evolve into Vikavolt.

Still, Charjabug segments, unlike a Dodrio's heads, get along remarkably well; when Alolans need to work closely with one another, they are often implored to be like the segments of a Charjabug.