Fenix Rechargeable Li-Ion Battery 16340 3.6V 2.88Wh

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Built-in USB-C Rechargeable Battery is a 16340 Li-ion battery with a protection circuit in the anode to help prevent short circuits, overcharge/discharge and overheating.

This battery has its own USB Type-C charging port for quick/easy charging without the need for a separate charger. The battery also includes multiple levels of protection including overcharge protection, overheat protection, and pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.

It is designed to work with: PD25R, LD15R, E18R V2.0, and HM50R V2.0.


  • Built-in USB-C Rechargeable Battery
  • Size: 16340 Button Top Battery
  • 800mAh Nominal Capacity
  • 3.6V Nominal Voltage
  • Charging current: 0.6A
  • Charging current by USB port: 0.5A
  • Protection Circuit in the Anode to prevent short circuit
  • Multiple layers of protection
  • 500 charge cycles can be expected from a properly maintained battery
  • Fully covered with a steel shell for impact resistance
  • Overcharge, discharge, short circuit, and overheating protection
  • Three sets of over-head protection: Pressure relief valve protection, separate microporous protection, and PTC cathodal block protection

Weight: 18.8g
Size: Length: 35mm 
Diameter: 16.7mm

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