The BAT-LR14/P-B2 is a rechargeable battery made by Panasonic. It has a nominal voltage of 3.0V, a nominal capacity of 3400mAh, and is a cylindrical cell measuring 14mm in diameter and 50mm in length. The battery is capable of over 1000 recharge cycles and has a self-discharge rate of less than 15%. It is commonly used in various consumer electronics and medical devices.