The Energizer 2450 Battery. Power for heart-rate monitors, keyless entry, glucose monitors and more.

• Reliable power for a range of devices: heart-rate monitors, keyless entry, glucose monitors, toys & games
• Holds power for 8 years in storage
• Performs in extreme temperatures (-22 to 140 F)
• Child Resistant Packaging
• Cell size: 2450
• IEC: CR2450
• Type: Lithium Coin
• Volt: 3
• Replacement for: 5029LC, CR2450, DL2450, ECR2450