100% Brand new Alkaline AG1 LR621 364 SR621 164cell batteries Factory fresh, highest quality, long lasting Can be used in the following products: Watches Clocks Calculators Computers Cameras Digital Cameras PDAs Remote Controls Camcorders Electronic Games Electronic Instruments MP3 Players Digital Voice Recorders Toys Blood Glucose, Cholesterol Testing Meters Hundreds of other electronic products Chemistry: Alkaline Capacity: 140mAh Voltage: 1.5V IEC international standard: AG1 LR621 364 SR621 164