According to the table, the nominal voltage of the alkaline batteries is 1.5 volts and the Silver-oxide batteries voltage is 1.55 volts, a little higher than alkaline. Voltage can drop rapidly. The device can shut off if the voltage is 1.1 or 1.2 volts. When you use the LR621 batteries in electronic devices, the cut-off voltage can be reached to 0.9 volts. But, the silver-oxide batteries have 1.2v cut-off voltage. SR721W, SR58, SR721, SB-BK/EK, 280-53, X, V361, S721E, 361, GP361, D361, 361A, 361X, A361, SB-BK, SR721PW

Silver Oxide Button Cell Battery". BatteryMart.com. Archived from the original on 28 February 2015 . Retrieved 23 February 2015. Lithium Ion UR14650 Datasheet" (PDF). Omnitron.cz. Panasonic. June 2016 . Retrieved 26 September 2019. The Watch Battery Cross Reference Table below gives all Watch Battery sizes and their equivalent replacement watch battery reference These types are associated with legacy applications, such as for vacuum tube equipment (A, B, and Cbatteries), or are no longer manufactured. Proprietary silver-oxide button battery made for Casio "MINI CARD" calculators. No longer made. This type of battery has "reversed polarity" (the outer can is negative and the bottom terminal is positive)

AG13, D76A, G13A, GPA7, GPA76, LR44, L1154, PX675A, PX76A, RPX675, S76, V13GA, RW82, KA, A76, 208-904, SB-F9, G13-A, CA18, CA19, LR44, GP76A, L1154H, A-76, AG14, AG-14, KA76, MS76H, CR44, LR44H, L1154G, LR44G, GPS76A, L1154C, L1154F, GPA75, GDA76, A613, LR44GD

LR621, SR621SW, 364/363 batteries are safe when operated as well as handled properly. Anyway, they don’t contain erratic, and therefore potentially, hazardous materials or pollutants like mercury or cadmium. GP23A, LRV08, L1028, RVO8, 23A, MS21, MN21, E23A, K23A, V23GA, 8LR932, 8LR23, VR22, 8F10R, CA20, MN21/23, 3LR50, A23, GP23A, 23AE, A23, A23S, P23GAEnergizer 387S" (PDF). Energizer. Archived (PDF) from the original on 7 April 2017 . Retrieved 19 February 2017. Vapcell 16340 800mAh 7A Button Top Battery". lygte-info.dk. hkj. May 2019 . Retrieved 24 September 2019. The full battery designation identifies not only the size, shape and terminal layout of the battery but also the chemistry (and therefore the voltage per cell) and the number of cells in the battery. For example, a CR123 battery is always LiMnO 2 ('Lithium') chemistry, in addition to its unique size.