CR1620 lithium button cells are often used in car alarms, PDA's, glucometers, cameras, calculators, computer backup batteries, toys, electronic watches/clocks & many other devices. With a broad range of applications & a wide range of operating temperatures, GP Lithium Coin batteries are ideal for different makes of cameras, watches, remote controls & other electronic devices. They have a long shelf life of 10 years & are the perfect partner for computers & other sensitive devices. Also known as CR1620, DL1620.