ARB-L21-5000 V2.0 is a high-capacity 21700 Li-ion rechargeable battery built for more power and longer runtimes. Additional features include a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. Pressure relief vents which expel waste gas in the rare case of an internal short circuit preventing an explosion. Battery capacity up to 5000mAh. 500 charging cycles.
Important Note: THIS BATTERY IS NOT COMPATIBLE WITH 18650 FLASHLIGHTS OR OLDER STYLE CHARGERS. COMPATIBLE CHARGERS ARE THE FENIX ARE-A2, ARE-A4, ARE-D1 OR ARE-D2.
Charging Current: Recommended 1A, maximum 5A
Weight: 2.6 ounces (72.5g)
Size: Length: 2.99″ (76mm) Diameter: 0.85″ (21.5mm)
Warranty Period: 12 month from date of purchase
It has been a reliable and bright light used under harsh conditions. I use this as my long gun light, and even after over 3000 rounds is going strong! My long gun, personal and emergency flash lights are all Fenix!
Works ok just a little pricey.
The V2.0 version of this battery has upgraded the performance on both of my flashlights using 21700 batteries. I expect the same great longevity as provided by all my other Fenix batteries.
I’ve purchased my first Fenix flashlight that uses the 21700 battery so I pick this up as a spare. So far it’s a great battery. I will know more about longevity after I use this for a while. My other Fenix batteries have lasted for years and are going strong!
The Fenix light that I purchased was so well made I decided to buy an extra rechargeable battery to go with it. I also purchased a charger separately which I am also very pleased with. H8gh quality from the l8ght itself to the rechargeable batteries. I am a professional Automotive Technician so I use it in a professional setting day after day. It's exactly what I was looking for.