Duracell® DL2032BPK 2032 Lithium Coin Batteries provide reliable 3V power for medical, electronic, security, key fob, remote control, thermometer, glucose monitor, watch, and other compatible devices. These lithium coin batteries feature child-secure packaging and a non-toxic bitter coating designed to help discourage swallowing. They are guaranteed for 10 years in storage so they are ready when needed.