Panasonic CR Lithium Button Batteries.CR Series Lithium coin button batteries from Panasonic. These batteries are available in a variety of different sizes and capacity options to suit your application. These non-rechargeable batteries are ideal for smaller electronic devices and have a longer lasting life than alkaline equivalents. These batteries are small, round and slim and are normally used on their own but with their less self-discharge they are able to hold their charge for a longer period of time.