As a silver oxide coin cell, the Maxell 364 SR621SW is a battery that have low self-discharge for smaller devices while also maintaining a stable output voltage to ensure constant power. The Maxell 364 is a button cell perfectly suited towards common household devices like digital thermometers, watches, calculators, and even key-less remote entry systems for cars and homes. In addition to these features, the Maxell 364 SR621SW has a shelf life of 5 years, so whether you are quickly replacing a battery or stocking up for your next battery change the 364 will be ready to go.