Discover the versatile OEM 18650 Li-Ion Battery Pack, available in multiple configurations like 3.7V 1s1p, 7.4V 2s1p, and 11.1V 3s1p. With capacities ranging from 2600mAh to 6000mAh, this high-performance battery pack is perfect for telecommunications, audio/video devices, and more. Customize your pack today!