Since the release of the Fenix PD36R and TK22V2, everyone has been waiting patiently for the replacement batteries to come out. The time has come; now available is the Fenix ARB-L21-5000 21700 rechargeable battery.
The all-new lithium-ion battery provides the voltage and power you need for extended run time and higher lumen capacity.
The ARB-L21 is equipped with all the features of high-quality Fenix batteries, including protection circuits inside the anode and up to 500 charge cycles. Also included are the three overheating protection sets: pressure relief, microporous, and cathode block PTC.
Don't run out of light; get a replacement 21700 battery today!

FEATURES

• Capacity: 5000mAh
• Button-Top design
• Protection circuit incorporated in the anode with a steel cap by riveting . The steel grille eliminates the risk of short circuits caused by collisions and impacts
• Pressure Relief Vent: Expels exhaust gases generated by the internal short circuit
• Three sets of overheat protection : overcharge protection , over discharge protection, short circuit protection and overheat protection
• 500 charge cycles
• Nominal voltage: 3.6v