Specifications:chemistry: silver oxidevoltage: 1.55 Voltsdimensions: 6.8 Mm x 2.1 Mmbrand: renataqty: 50ideal for the following applications:laser pointerswatchescamerasalarm transmitterrescue heroeschildren bookscalculatorsblood pressure instrumentsugar level detectorsmany othersequivalent batterieslr60 lr620sr60 sr60l cx60621 sr621 sr621sw sr621w s621e r621 tr621 l621 lr621w364 364a 364b sp364 v364 d364 gp364531 620 164 602g1asb-ag dg280-34t battery