However, sometimes manufacturers mark silver-oxide batteries with both SG4 (correct) and AG4 (not correct) to emphasize that their battery is a replacement for AG4/SG4/LR66/SR66/LR626/SR626/SR626SW battery.

mm silver-oxide battery with sodium hydroxide electrolyte which complies with the IEC 60086-3 watch batteries standard.We take intellectual property concerns very seriously, but many of these problems can be resolved directly by the parties involved. if the battery code after the digits contains 'P', then it is the battery with potassium hydroxide electrolyte. Both SR626SW and SR621SW batteries are silver-oxide non-rechargeable batteries suitable for powering wrist watches and other sensitive electronic devices.

Brand New Authentic Murata Battery in blister packaging Provide long shelf life for back up energy purposes together with ideal temperature resistance and superior storage capacity.If the battery code after the digits contains 'S', then it is the battery with sodium hydroxide electrolyte, and if the battery code after the digits contains 'W', then the battery complies with the IEC 60086-3 watch batteries standard. if they get swallowed, be sure to immediately contact the nearest emergency center and act according to their instructions.