2 X Energizer ECR2450 CR2450 BR2450 DL2450 Lithium 3V Battery NEW THIS IS THE NEW LATEST PACKAGING BY ENERGIZER, FRESHEST BATTERIES AVAILABLE!The Energizer 2450 Battery. Power for heart-rate monitors, keyless entry, glucose monitors and more.Product DetailsReliable power for a range of devices: heart-rate monitors, keyless entry, glucose monitors, toys & gamesHolds power for 8 years in storagePerforms in extreme temperatures (-22 to 140 F)Child Resistant PackagingCell size: 2450IEC: CR2450Type: Lithium CoinVolt: 3Replacement for: 5029LC, CR2450, DL2450, ECR2450