Energizer Zero Mercury 379TZ Button Battery

There are regular specialty batteries, and then there are Energizer® specialty batteries. So get the durable, reliable power that keeps going with this Energizer® 379 silver oxide button cell battery. It delivers long-lasting power to your button-battery-operated devices, from household electronics like keyless entry systems, to e-books, toys, calculators, and watches, to heart rate and glucose monitors. And these zero-mercury coin batteries can hold power for up to three years in storage. Choose Energizer® specialty batteries for long-lasting power you can count on when you need it.