The Fenix ARB-L18-2600U is a Li-ion 18650 battery features a standard 3.6 Volt output with 2600mAh capacity. The high capacity battery is capable of being charged in either a standard charger or directly via  Built-in Micro USB Port. The battery is outfitted with a PCB unit that regulates both power,charging and eliminates potential risk of short circuit caused by collision and impact. This new battery has both power and flexibility.

Features:

• Micro-USB charging port allows cell to be charged without conventional charger (Micro-USB Cable NOT Included)
• Still capable of being charged in normal Li-Ion battery chargers
• Three sets of overheat protection
  • Pressure Relief Valve Protection
  • Separate Micro-porous Protection
  • PTC Cathodal Block Protection
• Sophisticated protection circuit built into the anode
• Multicolored LED power indicator glows red while battery is charging, green when fully charged

Specifications:

• Battery Size: 18650
• Battery Chemistry: Lithium Ion (Li-Ion)
• Nominal Voltage: 3.6V
• Nominal Capacity: 2600 mAh
• Max Charging Current: 2.0A (Charger), 1.0A (USB)
• Recommended Charging Current: 1.0A (Both Charger and USB)
• Estimated Charge Cycles: 500 cycles
• Dimensions:
  • Length - 70 mm
  • Diameter - 8.6 mm
• Weight: 50 g