LONG-LASTING POWER: 3V lithium batteries with high energy density. Lasts up to 5x longer than alkaline in security cameras HIGH CAPACITY: 1500mAh for extended usage. Low self-discharge ensures reliable power, even after years of storage VERSATILE APPLICATIONS: Ideal for cameras, alarm systems, flashlights, and more CERTIFIED SAFETY: Tested for safety with UL, UN38.3, and CE certifications. Built-in PTC protection against leaks EXTREME PERFORMANCE: Operates from -40°F to +140°F for reliable power in any environment Granicell CR123A 6-Pack 3V Lithium Battery, High Capacity 1500mAh CR123A Lithium Batteries. Designed for Cameras, Flashlights, Alarm Systems, and Security Devices. Non-Rechargeable with long-lasting performance and wide compatibility.