Energizer 1620 Lithium Coin Cell Battery - Precise energy, perfectly aligned to the different functions of video, photo, and electronic devices. Last much longer than ordinary alkaline batteries. For heart-rate monitors, glucose monitors, keyless entry, toys & games Holds power for 8 years in storage Performs in extreme temperatures (-22 to 140 F) Cell size: 1620 IEC: CR1620 Type: Lithium Coin Volt: 3 Replacement for: 280-208, BR1620, CR1620, DL1620, ECR1620