The Klarus 18650 is a high quality battery that performs extremely well. With a high capacity of 3400mAh, you'll get a very long runtime.

FEATURES:

• Multi-layered protection: PTC, Pressure vent, microporous shielding and a protection circuit all built in
• Long-life: 500 charge cycles before capacity starts dropping significantly
• These batteries contain a raised positive polarity. Can be used in lights and electronics that aren't compatible with flat-tops

SPECIFICATIONS:

• Chemistry: LiNiMnCoO2 (INR)
• Nominal Capacity: 3400mAh
• Nominal Voltage: 3.6V
• Maximum Discharge Current: 12000mA
• Charging Current: 1700mA
• Charging Cycle: 300 Times
• Operating Temp: -10 - 60°C
• Weight: 50g
• Dimensions:
• Diameter 18.7mm
• Length: 69.2mm 

Li-ion notes: All lithium ion batteries have a risk of fire and/or explosion, handle batteries with care, ensuring not to overcharge or overdischarge, even if the battery contains a protection circuit. If battery is visibly damaged, stop use immediately and dispose of appropriately (Li-ion batteries pose a serious fire risk if thrown into household waste). If a battery is not to be used for over two weeks, store partially charged(30-40%) for maximum capacity retention.