Button top, unprotected. Sold individually. 4.35v charger required for maximum capacity. XTAR VP2, WP2h, and SP1 recommended.
These batteries are great for some of the Surefire style and other lights that are bored too small to fit an 18650 battery. These are the the highest capacity 16650 cells available.
Nominal Capacity: 2500mAh
Maximum Recommended Discharge Current: 5A (2C)
Termination Voltage: 4.35v