The CR123 and CR123A batteries are both non-rechargeable lithium batteries commonly used in high-powered devices such as cameras, flashlights, and laser pointers. The CR123A battery is a newer and more advanced version of the CR123, offering higher voltage and longer-lasting power. The CR123A battery typically has a higher capacity and can deliver more consistent and reliable performance, making it ideal for high-drain devices that require a steady power supply. It is also more suitable for extreme temperatures and has a longer shelf life compared to the CR123. For those looking for a reliable and long-lasting power source for their high-powered devices, the CR123A battery is the ideal choice. Its advanced technology and superior performance make it the preferred option for professionals and enthusiasts who rely on their equipment in demanding situations.