Energizer Electronics Battery *Sub Brand: ZeroMercury *Battery Chemistry: Alkaline *Battery Size: A23 *Battery Voltage:12 volts *Product Type: Electronics Battery *Brand or Model Compatibility: Keyless Entry *Number in Package: 2 pk *Packaging Type: Carded *For keyless entry and garage door openers *Replacement for 1181A, A23BP, DL21, DL23, MN-21B, MN21, V23GA