Great spare batteries
"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."
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More Information
Specifications of the ARB-L21-5000 V2.0 Rechargeable Battery
- New 21700 battery type
- 5000mAh high capacity
- Protection circuitry to prevent short circuits
- Pressure vents to prevent explosions
- 500 charge cycles
- Currently compatible with all lights using the 21700 battery, except the discontinued PD40R V2.0.
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: 4.8341837 / 5 from 392 reviews.
AI Generated Review Summary
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.
Summary topics
- Charge Retention: 3%
- Shipping Speed: 3%
- Power Output: 5%
- Battery Quality: 6%
Review topics: ["shipping","quality","light","issues","value","service","power","fits","battery","charger","capacity","works","customer service","performance","price","feels","use","flashlight","life","holds","setting","fenix","box","headlamp","case","bonus","extras","backup","discount","range"].
Review highlights
- "Good quality batteries, hold a charge very well, reliable." —
- "batteries look great fast shipping and would order again , nice holders to." —
- "Love the light, fits well in my hand and the easy adjustment of light is easy and convenient. . . . ." —
Reviews
Note that Turbo mode will
"Note that Turbo mode will drain a battery quite quickly. Good quality item. Thank you"
Worked as advertised. My Fenix
"Worked as advertised. My Fenix light wasn't recharging properly. The new gave me a full charge in a timely manner."
Wonderful Backup
"Purchased a Fenix rechargeable flashlight and needed a backup battery when charging wasn’t an option. This is the ticket"
Solid battery
"Lasts as long as it claims. Recharges super quick. Super happy with this."
Great battery!
"Does the job! Charges quickly."
awesome product thank you
"awesome product thank you"
Good power, long life
"I took these on a night adventure race and they worked great. Llve the modular cases too!"
Highly recommended! Puts out great light and long working time.
"Review from some independent online sites were very accurate. Excellent light quality. I did not notice any drop in lumens after 1 hour of continuous use. Have used for almost 2 hours on high setting without needing to recharge. Recharging is slightly slow but I prefer longer battery life than rapid charging that creates too much heat and reduced battery longevity. Plus, the extra battery was a huge bonus. Very comfortable headband which is important because this light is a little heavier than cheaper lights but is on par with lights in its lumen range."
Kind of expensive for 2
"Kind of expensive for 2 batteries but worth it I guess you could say."