Energizer Bunny The " Energizer Bunny " was a small male lagomorph - like creature that used an Energizer battery attached to his back to keep going and going . Around 3 ABY , the Sith Lord Darth Vader was sent by his master , Emperor Palpatine , to take the Energizer Bunny ' s battery . However , after a brief duel in Cloud City ' s carbon - freezing chamber , the Bunny was able to escape from Vader after the batteries in the Sith Lord ' s lightsaber ran out , leaving Vader disarmed . Biography . Duel with Darth Vader . The Energizer Bunny was a male and was a member of a lagomorph - like species that used an Energizer battery to keep going and going . Sometime during the Galactic Civil War , the Energizer Bunny ' s presence in the Force was so strong that it registered on the sensors of the Star Dreadnought " Executor " — a remarkable occurrence , given that detecting the Force generally required very specialized equipment such as a Force detector . Despite this , it is apparent that Vader only took action with regard to this matter after Emperor Palpatine ordered Vader to " get his battery " after sensing the " great disturbance in the Force " caused by the Energizer Bunny . Vader and the Energizer Bunny eventually met at a carbon freezing facility at an undisclosed location , possibly Cloud City . Vader soon discovered that retrieving the Energizer Bunny ' s power cell would not be as easy as he had thought . He taunted the Energizer Bunny and tried to lure it to the dark side of the Force . It easily evaded the Sith Lord ' s attacks by spinning . Eventually Vader ' s lightsaber , which had been powered by allegedly inferior Supervolt power cells , died out . With no apparent urgency , the Energizer Bunny exited the carbon - freezing chamber as the Dark Lord of the Sith screamed in frustration . Other activities . At some point , the Energizer Bunny was spotted on a viewscreen at the Star Tours depot . The extent of his involvement in the venture is presently unclear . Powers and abilities . The Energizer Bunny was agile , being able to evade several of Darth Vader ' s lightsaber attacks during the duel on Cloud City . Because of the Energizer battery attached to his back , the Bunny could keep going and going for long periods of time , along with continuously beating on a pair of drums he carried around with him . Equipment . The Energizer Bunny had an Energizer battery attached to his back , which allowed him to keep going and going . He also carried around a set of drums , which he constantly beat . The Energizer Bunny wore a pair of sunglasses and sandals . Behind the scenes . The Energizer Bunny was featured in a licensed " Star Wars " – themed commercial in 1994 . During the Energizer company ' s relationship with Lucasfilm , the Energizer Bunny was also displayed at the Star Tours attraction at Disneyland . Species . The species of the Energizer Bunny has never been revealed , but he does bear a distinct resemblance to several different lagomorph species . He is apparently small enough to fit in a human hand , has short , brightly colored fur , never speaks aloud , and appears to operate on electricity . These characteristics might be sufficient to classify him as a Hoojib .