Lithium Button cell battery BR1225 3 V 1-Blister

Don't let their small size fool you: This Energizer 1225 Lithium Coin 3-Volt battery delivers big time long-lasting, reliable power for your coin-operated items.
From heart rate or glucose monitors to remote controls, keyless systems, key fobs, watches, toys and games – and even more specialized devices – the coin battery is compatible with the devices that fit your life, so you can keep going.