Ultrafire Ultrafire Rechargeable Battery, UF18650, Lithium-Ion, 3.7V, 6800mAh The UltraFire UF18650 is a high-capacity rechargeable lithium-ion battery designed for a variety of applications. These batteries can be recharged multiple times, offering a cost-effective and... Quick view Qty in Cart: 0 Price: Log in for pricing and quote Subtotal: