Dorcy Mastercell Lithium CR2016 coin cell batteries deliver dependable power to your compact devices. With an impressive 8-year shelf life, these batteries retain power even when not in use and excel in extreme temperatures from -30 degrees Celsius to 60 degrees Celsius (-22°F to 140°F). Ideal for heart rate monitors, keyless entry devices, fitness gadgets, and various electronic products requiring reliable lithium power. Compatible with CR2016, ECR2016, DL2016, LM2016, 2016, KCR2016, BR2016, SB-T11, FA, 280-205, BR2016, 280-202/4/6, 5000LC. (Model: 41-4105)