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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, ARE-D2, OR ARE-X1 V2.0.
For commercial orders and large purchases, contact us at (888) 775-9996 x6 or GET A QUOTE
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Capacity: 5000mAh
Voltage: 3.6V
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
Overall rating: 4.8312345 / 5 from 397 reviews.
The Fenix ARB-L21-5000 V2.0 Rechargeable Battery is praised for its exceptional power and reliable quality. Customers appreciate its ability to hold a charge and the fast, reliable shipping. However, opinions on the charger vary, with some experiencing discharge issues.
Review topics: ["quality","value","shipping","fits","light","battery","charger","issues","power","capacity","service","feels","performance","customer service","price","works","flashlight","life","holds","setting","fenix","box","headlamp","case","feature","use","deal","addition","bonus","experience"].
"This battery is awesome, I got a couple extra, one for my flashlight and one for my headlamp as I do things off grid fairly often and always want to have extra capacity to be able to run the lights at their strongest levels, though I havent had to use them since they one in the units work so good!"
— John A. (5/5)
"Love these batteries. Use them with the FENIX ARB-LP21 POWER EXTENDER when out camping and can charge phones, small headlamps, etc. Good capacity and they seem to last well."
— LKM (5/5)
"Very useful in specific cases, just would want more features to it. All though is great and a reliable tool"
— Ivan (3/5)
"Long life battery,charges quickly. Great to have a spare!"
— Bruce H. (5/5)
"Note that Turbo mode will drain a battery quite quickly. Good quality item. Thank you"
— Mckinley R. (5/5)
"Worked as advertised. My Fenix light wasn't recharging properly. The new gave me a full charge in a timely manner."
— Tom B. (5/5)
"Purchased a Fenix rechargeable flashlight and needed a backup battery when charging wasn’t an option. This is the ticket"
— Steven B. (5/5)
"Works as it should! Always good to have a backup battery."
— John (5/5)
"Lasts as long as it claims. Recharges super quick. Super happy with this."
— JAMES D. (5/5)
"Does the job! Charges quickly."
— John F. (5/5)
Your ExpertVoice deal.
$[Deal Price]
$[Original Price]
Discount applied at checkout.
On sale now — lower than your ExpertVoice discount.
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You’ll see your ExpertVoice discount at checkout.
