18650 Battery 3500mah

Availability: In stock (18)
Brand: Fenix

This is Fenix's newest rechargeable 3500 mAh 18650 Li-Ion battery which features multiple protection points in the anode and cathode, as well as pressure relief vents to protect against gas buildup in the case of short circuiting. The battery also features no memory effect (batteries need not be drained before charging), negligible self discharge, and front and back protections of the circuit board that make it more impact-resistant and reliable.

The 18650 battery also sports a button top (as opposed to Fenix's previous 18650 cells which featured flat tops), which makes for interoperability with other flashlight manufacturer's lights (check compatibility with your specific model).



  • 3500 mAh capacity battery with outstanding performance
  • Triple over-heat protect for safety and reliability
  • Built in over-charge, over-discharge protection circuit to ensure the maximum performance of the battery
  • Circuit board has front and back protections to make it more impact-resistant and reliable
  • Compact design: suitable for high-intensity flashlights
  • No memory effect, negligible self discharge



  • 500 Charge Cycles
  • Voltage: 3.6V
  • Charging Current: Recommended 1A, maximum 2A
  • Weight: 49g
  • Size: Diameter 18.5mm, Height 68 mm
  • Warranty Period: 12-month free warranty period from purchase date
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