LR44 Pack of 10. These LR44 blister packed batteries from JCB are a reliable and safe choice of battery, with excellent storage life at room temperature. These lithium coin cell batteries are supplied in packs of 10 and they are ideal for use in watches, cameras, calculators and games.. Pack of 10. 11.6mm x 5.4mm. Long service life over a wide range of operating temperatures. Coin cell batteries are ideal for use in laptops, cameras, heart rate & glucose monitors, keyless remotes, glucose monitors, toys & games