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Fenix BT20 Bike Light Flashlight Batteries

Keep your Fenix BT20 Bike Light flashlights and lanterns shining bright with powerful replacement batteries and accessories from Batteries Plus Bulbs. We also stock light bulbs, holsters, chargers, flashlights and more.


  • Guaranteed performance
  • Made in the USA
  • Fenix BT20 Bike Light Flashlight
Brand: Rayovac
Voltage: 3
Format: 123

  • Made in the USA
  • Streamlight OEM battery
  • Convenient 12- Pack
Brand: Streamlight
Voltage: 3
Format: 123
Capacity: 1550MAH

  • Trusted Duracell Ultra brand
  • DuraLOCK Technology - lasts 10 years in storage
  • Reliable, long-lasting power
Brand: Duracell Ultra
Voltage: 3
Format: 123
Spend $50 or More on Duracell Batteries and get a Visa Gift Card after Mail-In Rebate


  • Guaranteed performance
  • Made in the USA
  • Fenix BT20 Bike Light Flashlight
Brand: Rayovac
Voltage: 3
Format: 123


Have more questions about your Fenix BT20 Bike Light Flashlight battery needs? Contact us or visit your nearest store.