UltraFire BRC 18650 6000mAh 3.7 Li-ion Battery is a high-quality battery with a capacity of 6000mAh. This battery is designed to replace the 18650 3.7V battery. The 3.7V battery is capable of powering any 18650 flashlight, laser pointer, laser flashlight, and other devices. The battery is also very safe, reliable, and durable. This battery is the perfect replacement for your old, worn out battery. The battery has a high capacity of 6000mAh, which is enough to power any 18650 flashlight, laser pointer, laser flashlight, and other devices. The battery is designed to replace the 18650 3.7V battery. The 3.7V battery is capable of powering any 18650 flashlight, laser pointer, laser flashlight, and other devices. The battery is also very safe, reliable, and durable.