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Fenix ARB-L21-5000U Rechargeable Battery

$34.00 $25.95

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ARB-L21-5000U is a high capacity 21700 Li-ion USB rechargeable battery built for more power and longer runtimes. This battery has its own USB-C charging port for quick/easy charging without the need for a separate charger. 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. This product will only work in those models supporting 21700 batteries. A USB-C charging cord is NOT included. 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.

SKU: ARB-L21-5000UN/ABarcode: 6942870369358N/A

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More Information

Specifications of the ARB-L21-5000U Rechargeable Battery

  • 5000mAh high capacity
  • USB Type-C rechargeable battery
  • Protection circuitry to prevent short circuits
  • Pressure vents to prevent explosions
  • 500 charge cycles
  • Indicator light on battery is red while charging, blue when charged
  • Compatible with the E35 V3.0, HT18, LR35R, LR50R, PD36R, PD36 TAC, PD40R V2.0, Tk16 V2.0, TK20R V2.0, TK22 V2.0, TK22 UE, and TK30.

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

Customer Reviews

Based on 191 reviews
90%
(171)
6%
(12)
1%
(2)
1%
(2)
2%
(4)
W
Wolff Turner
Bad

I ordered two batteries and one would not hold a charge. I contacted Fenix and they said they would replace it and sent me a return label on line. I’ve got no way of printing it off. I sent an email saying so and never heard anything back. Guess I’m just going to have to eat that $26. Won’t happen again.

Wolff, We did send out a prepaid link that you would need to print that label. We will contact you today to send you a new label in the mail a physical label, no need to print that one.

K
Keith Wiseman
Love them!

I have a 6 of them.
I use them for my work lights and my hunting lights. Awesome! I love the usb-c charging. It makes it so much easier to swap and charge.

J
Jeffrey Cook
Great product

Bought two more as back up for my PD36 TAC 3000lm light. Both are outstanding products.

J
Jaime W Bowen
ARB L21 5000U

I purchased this as a backup batter for my Fenix Pro lantern. It appears to be just as described and worked well when I tested it.

Thank You!

j
jon hayner
shipping time 4-5 days is a joke

ordered battery on october 11th and received october 26th, just a little outside of their promised 4-5 business days. 15 days shipping. Service sucks

Jon,
Thank you for taking the time to leave a review. We apologize for any inconvenience you experienced with the shipping time. We understand your frustration and we want to assure you that we always strive to provide the most accurate shipping estimates to our customers.

In this case, your order was placed on Friday, we shipped your order on Monday, October 12th which was a holiday. Due to this, there was a delay with the shipping carrier, which unfortunately was out of our control once it left our warehouse.

K
Kim Sellergren
Long Life

These 5000 series batteries definitely give me a lot of extra run time with the flashlight. Having a USB C charging port on the battery itself is more than worth the extra dollar in cost because it allows me to be recharging my second set of batteries with just a USB cable while I am using the flashlight.

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