Murata SR41 Button Battery, 1.5V, 7.9mm Diameter Murata SR41 Button Battery, 1.5V, 7.9mm Diameter, Model Number: LR41, Chemistry: Alkaline Manganese Dioxide, Capacity: 45mAh, Terminal Type: Standard, Dimensions: 7.9 x 3.6mm GBP 0.41 1