CR2016 - Twin Pack. This blister packed CR2016 3V lithium coin battery from Energizer replaces the 280-202, 280-204, 280-206, 5000LC, BR2016, DL2016, SB-T11 & ECR2016 and is commonly used in heart-rate monitors, keyless remotes, glucose monitors, toys & games.. 3V Lithium Coin Cell. Also for heart-rate monitors, keyless entry, glucose monitors, toys & games. Replaces 280-202, 280-204, 280-206, 5000LC, BR2016, DL2016, SB-T11 & ECR2016. Blister Packed