Fenix ARB-L21-5000U 21700 Li-ion Battery 5000mah

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Fenix ARB-L21-5000U 21700 Li-ion Battery 5000mah


The time has come; now available is the Fenix ARB-L21-5000U rechargeable Type C 21700 battery . The all-new Li-ion battery provides the voltage and power needed for extended runtime and higher lumen capacities. The ARB-L21 comes with all the bells and whistles of high-quality Fenix batteries, including protective circuits inside the anode and up to 500 charging cycles. Also included are the three sets of overheat protection: pressure relief, microporous, and PTC cathodal block. Don't run out of light; pick up a spare 21700 battery today!

Availability:In stock



Fenix ARB-L21-5000U Rechargeable Battery Fenix ARB-L21-5000U Rechargeable Battery
Fenix ARB-L21-5000U Rechargeable Battery Fenix ARB-L21-5000U Rechargeable Battery



21700 Standard Battery Characteristics

  • 21700 rechargeable batteries are the highest volume standard battery used in lighting products. They are a great alternative for products that utilize 2 x CR123A disposable batteries.
  • Not only are you being environmentally friendly by eliminating disposable batteries, 21700 rechargeable battery provides different levels of capacity for your exact need.
  • 21700 batteries are built with safety in mind. There are built in features to prevent short circuits, design multiple layers of protection and the new button- design.
  • The high capacity 18650 Li-ion rechargeable batteries each provide protection circuits in the anode to help prevent short circuits, over charge / discharge and over heating.
  • Each battery also includes pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion.
  • Button Top Design
  • 500 Charge Cycles: A properly maintained battery is designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles.

Technical Specifications

Brand Fenix
Battery Size 21700
Chemistry Li-Ion
Voltage 3.6V
Capacity mah 5000 mah
Dimensions D x L 21.5mm x 76mm
Manufacture Quality High performance, Over current protection, No memory effect
Positive Pole Button Top
Over Discharge Protection Protected
Precharge Non Precharded Battery
Common device Applications Flashlights
Notes Battery can be charged both through micro USB cable and in an external charger
Package items 1
Weight 73gr

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Fenix ARB-L21-5000U 21700 Li-ion Battery 5000mah