Exell 411A Alkaline Battery When you need the best of the best, the Exell 411A is the alkaline battery that is ready to meet your needs. This heavy duty battery emits a tremendous 15 Volts makes one of the finest specialty batteries available. The 411A can be used for a number of devices such as vintage transistor radios, vintage cameras, and medical testing equipment. Specifications: • Chemistry: Alkaline • Voltage: 15V • Also Known As: 10F20, 208, 411, 411A, A411, B121, BA 331/U, BLR-121, BLR121, K10, M121, U10, VS082 • MPN: 411A • UPC: 819891010193