All of these are rechargeable, with internals from Japan. They will last you a good 500 recharge cycles, that's 5 years usage if you use your lights twice a week.
All Batteries Are 100% Authentic And Original. They have a 5-year shelf life and are great to keep as spares in an event of a blackout. These are optimized to work with Nitecore lights and will serve you well through the years.