Designed for use on continuous low drain. Replaces LR41, 192, 384, SR41SW/W; Duracell D392, Energizer? 392, Goldpeak 392, Maxell SR41W, Panasonic SP392, Rayovac 392, Renata 392, Sony SR41W, Timex K, Toshiba SR41W and Varta V392. 7.9 mm Dia x 3.6 mm H. 41 mAh to 1.3 V. 1.55 V, carded.