Power digital cameras, flashlights, home security systems, and other electronics with this 2-pack of 3V CR123A LithiumBatteries from Panasonic. They can serve as replacements for DL123A, EL123A, K123A, and 5018LC models. Thanks to their very low self-discharge rate, the American-made batteries will hold most of their power for up to 10 years in storage. Additionally, they are made to perform well in extreme temperatures.