18650 (3.7 V) Lithium Battery Cell is a high-quality product that depending upon the application, can be used as a solo unit in any rechargeable device or can also be made into a high-capacity battery pack by combining multiple cells in a pack. We have various denominations available in 18650 - 3.7 V Lithium Cells as 1200 mAh, 1800 mAh, 2000 mAh, 2200 mAh 2500mAh 2600mAh. These 3.7 V lithium cells find their use in a multitude of applications such as Torches & Flashlights, Search Lights, Solar Lights, Power Banks, Battery Packs, Battery Powered Toys, Medical Equipment, and other such rechargeable equipment, etc. These Hongli Lithium-ion rechargeable cells are fully compatible with FOS Search Lights, FOS LED Flashlights, FOS Solar Lights, Search Lights, Flashlights, and Solar Lights.