Denki's Quirk gives him the ability to emit electricity out of his body as a sort of aura that electrocutes anyone through contact. When Denki emits enough electricity, it automatically discharges in all directions, shocking anyone close to him. He can also use his electricity to activate or charge electronics, like the radio headset he uses in his hero costume or the batteries of various electric devices.
If Denki exceeds his wattage limit, he short circuits his own brain, becoming a lunkhead for one hour and being unable to fight back until he recovers from this state. Because of this and his indiscriminate discharges, he usually holds back from showing his full power so that he doesn't end up accidentally harming anyone on his side. It is, however, possible to protect oneself from his electricity through insulating material. Due to this being a light-based Quirk, it has a natural advantage against Fumikage's Dark Shadow.
- Indiscriminate Discharge 1,300,000 volts (無差別放電 130万ボルト Musabetsu Hōden 130Man Boruto?): Denki releases a large amount of electricity to shock everyone around him. This was first used against members of the League of Villains.