The Peacekeeper 3000mAh 18650 battery with PCB protection.  (Fits PK-3000 and PK-3050 LT Flashlights.)

Carefully designed to power any 3.6V device that needs high energy density and low weight.

Specifications:

• Unique and New! With PCB protection!
• Li-Ion 18650 cylindrical rechargeable batteries with Internal Voltage protection PCB!
• Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 3.6V.
• Unique PCB design and patent pending.
• 3.6V 3000mAh11.52 with High Discharge
• High energy density and lower weight than other rechargeable batteries
• Manufactured under ISO9001-2000 to assure quality
• Battery tested based on International Electronically Commission (IEC) standard to ensure capacity, quality, and lifetime.
• 11A Max Continuous discharge
  15A Max Pulse discharge 
• Nominal Voltage: Average 3.6V
• Cut-off Voltage: 3.0V
• Internal Impedance: less or equal to 180 milliohm (with PTC)
• Cycle Performance: 90% of initial capacity at 400 cycles
• Cycle life: > 500 cycles
• Charge: Current = 0.5C mA Voltage = 4.2 V End Current = 0.01 mA
• Discharge: Current = 0.5C mA End Voltage = 3.0V
• Max. Charging current: 1.5C ma
• Max. Discharging current 1.5C ma (for continuous discharge)
• Operating temperature range: -4F-122F / -20C-50C

Dimensions:

• Diameter 18+/-0.2 mm
• Height 66+/- 0.2mm
• Weight (Typical) Approx. 46g