Energizer silver oxide button cells energizer 634977 the energizer sr58 362 361 is a silver oxide button cell battery with zero mercury it has an average output capacity of 27mah the battery will reliably power your watches glucose monitors toys and calculatorsthis silver oxide battery can be used as a replacement for the following batteries 280 29 361362 d361362 sb ak sb dk sr58 sr721w and tr721sw energizer 634977 size sr58 silver oxide button cell