EXTENDED RELIABILITY - Each SureFire 123A lithium battery delivers a robust 3V output and 1550 mAh capacity, ensuring your devices perform optimally for longer durations, reducing frequent replacements. PEAK PERFORMANCE - Designed for high-drain devices, these batteries provide consistent power, crucial for flashlights and other tactical equipment, maintaining brightness and functionality when it matters most. SUPERIOR LONGEVITY - With a shelf life of up to 10 years, these lithium batteries retain their charge, offering a dependable power source even after prolonged storage, ideal for emergency preparedness kits. OPTIMAL COMPATIBILITY - These CR123A batteries are compatible with a wide range of devices, including SureFire flashlights and other high-performance equipment, ensuring versatile use across multiple applications.