These rechargeable flashlight batteries are designed for high performance and durability. The blue cylindrical battery features a capacity of 14500mAh, providing consistent power to various flashlight models. With a voltage of 3.7V, these lithium-ion batteries offer a reliable energy source, allowing for extended use between charges. The battery has two attached wires, typically in red and black, for easy connection to the flashlight. Lightweight and compact, this battery is perfect for portable devices, ensuring that your flashlight is always ready for use whether you're camping, hiking, or simply need reliable lighting at home.