Item from Fallout by Interplay / Bethesda
Portable nuclear power cell the size of a thermos — powers everything from power armor to gatling lasers, and possession of one makes you a target for everyone who needs one.
The bottleneck resource of the wasteland. Power armor without a fusion core is a statue. A gatling laser without one is a club. Whoever controls the fusion core supply controls who gets to field heavy weapons and heavy armor. They drain under use, they're impossible to manufacture post-War, and every military installation that might still have them has been picked over a dozen times.
Cylindrical metallic canister with a yellow-green glow emanating from coolant channels along its housing. Heavy for its size. Heat-dissipation fins ring the midsection. The core hums faintly when charged, with a warning-yellow radiation trefoil stamped on the casing.
Also known as: Core, Fusion Cell, Power Cell