CR123A batteries, also known as 123A, are non-rechargeable lithium batteries commonly used in high-performance flashlights, digital cameras, and other electronics. These batteries are small and lightweight but pack a powerful punch. They typically have a longer shelf life than alkaline batteries and can withstand extreme temperatures, making them ideal for outdoor activities. A single CR123A battery can provide a voltage of 3 volts and have a capacity of around 1500mAh. These batteries are popular among professionals and enthusiasts who demand reliable and long-lasting power sources for their devices.