Charge. Win. Repeat. The SFLFP123 is the perfect solution for customers who prefer to use rechargeable 123A cells when powering SureFire illumination tools including WeaponLights and hands-free lights. While they lack the capacity of SureFire 123A lithium primary cells SFLFP123 cells are safe to use cost-effective and they retain approximately 80% of their original capacity even after hundreds of charging cycles. Can fully charge two batteries in three hours in the convenience of your home office or vehicle. Note: Do not use rechargeable LFP 123A batteries with incandescent illumination tools. See Restrictions in Features. Does not include charger.