Obi-Wan Kenobi and Qui-Gon Jinn are seen confined within energy cages on Telos IV An energy cage served as a metallic enclosure designed for the purpose of detaining individuals. Should an inmate make contact with the metallic bars, they would experience a severe electrical shock. During their mission on Telos, the Jedi Knights Qui-Gon Jinn and Obi-Wan Kenobi found themselves confined within such energy cages by Xanatos. The underlying technology of the energy cage frequently mirrored that of an energy gate.