Exell 411A Alkaline 15V Battery NEDA 208 Replaces 10F20, BLR121, M121Exell 411A Alkaline 15V Battery (Eveready 411 or BLR121) is an Alkaline replacement for the once-popular Carbon Zinc battery that was commonly used in AVO meters. Being Alkaline, the 411A replacement will last longer than the original. It is widely used in vintage collectible transistor radios and in the early model 8 AVO meters, such as the Mk III AVO meter. Specifications Voltage: 15V Amperage: 180mAh Chemistry: Alkaline Length: 1.03in (26.2mm) Height: 1.46in (37mm) Width: 0.63in (16.1mm) Terminals: Socket Contacts Exell 411A Alkaline Battery Replaces 10F20, 208, 411, 411A, A411, B121, BA 331/U, BLR-121, BLR121, K10, M121, U10, VS082 Exell 411A Alkaline Battery Applications Avo Meter Model 8,MK III, Triplett 625-NA Volt-Ohm-Milliammeter, and other vintage devices. Exell Batteries not only provide consumers with high efficiency, long-lasting performance, they also function as replacement batteries for an array of common and unique applications. Ranging from vintage camera equipment to sophisticated medical testing equipment, Exell Batteries can meet the needs of all consumers. Exell Battery is one of the few product lines Proudly Assembled in the USA. Made with Alkaline cells, Exell Batteries will last longer and offer consumers excellent reliability. Specifications Output Voltage: 15V Amperage: 180mAh Chemistry: Alkaline Length: 26.2mm Height: 37mm Width: 16.1mm Country of Manufacture: U.S.A. Compatibility Ansi: 208 Avo: AVO Meter MK III Avometer: MK III, Model 8 Ba: 331/U Burgess: K10, U10 Eveready: 10F20, B121, BLR121 Exell Battery: 411A Mallory: M121 Neda: 208 RCA: VS082 Triplett: 625-NA Volt-Ohm-Milliammeter