RS PRO 3V Lithium Button Batteries (CR1220) Consistent and reliable Lithium Manganese Dioxide coin button batteries offering a compact efficient power source. These non-rechargeable Lithium batteries ideal for small electronic devices such as cameras and watches featuring a longer life span than their Alkaline equivalents.;Able to hold their charge for long periods of time both when in use and during storage the CR1220 battery benefits from a very low level of self-discharge, high energy density and a consistent and reliably stable voltage. Features and Benefits 3V button cell battery ;Size CR1220;Dimensions 12.5 x 2mm;Lithium Manganese Dioxide chemistry;High Energy Density;Low discharge levels;Non-Rechargeable;Wide operating temperature range of -30 to 60°C;Suited to intermittent high load applications Applications Calculators;Car keys;Watches;Fitness trackers;Toys;Cameras;Hearing aids and medical devices How should Button batteries be disposed of? Any batteries should be disposed of in accordance with the recommended battery recycling and disposal schemes available Guidance Always install the batteries correctly as per instruction;Ensure that the contact points are clean and conductive;Do not mix different types of battery;Do not heat or attempt to recharge the battery;Do not dispose of in a fire