Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping on Most USA Orders
Some products sold on this website may expose you to chemicals known to the State of
California to cause cancer, birth defects, or other reproductive harm.
All electrical products must be installed by a qualified electrician in accordance
with local wiring regulations. Incorrect installation may result in fire, electric
shock, or injury.
Always disconnect power at the circuit breaker before installation.
💡
Bulb & Usage Advisory
Do not exceed the maximum wattage specified on the fixture label.
Keep away from flammable materials. Allow adequate ventilation around the fixture.
Keep out of reach of children. Not suitable for wet locations unless rated IP65 or higher.
Fenix ARB-L21-5000 V2 rechargeable 21700 battery provides the voltage and power needed for extended runtime and higher lumen capacities. The ARB-L21 comes with all the bells and whistles of high-quality Fenix batteries, including protective circuits inside the anode and up to 500 charging cycles. Also included are the three sets of overheat protection: pressure relief, microporous, and PTC cathodal block. Don't run out of light; pick up a spare 21700 battery today!
COMPATIBLE CHARGERS ARE THE ARE-A2, ARE-A4, ARE-D1, OR ARE-D2. This battery does not have a USB port for direct charging.
Shipping Note: Lithium ion batteries are considered "dangerous goods" per US transportation regulations and can often only be transported via ground shipment. Orders containing loose batteries will typically take much longer than predicted to be delivered. Delivery times of 14+ days are common.
⚠️ WARNING (California Proposition 65): This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
I was excited about this Fenix battery, but it stopped holding a charge after about a month of light use. The capacity was impressive at first, but now I’m left with a useless battery.
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Carlos Martinez
Solid battery for my flashlight
I bought the Fenix ARB-L21 5000 V2 rechargeable battery for my Fenix flashlight, and it works like a charm. The 5000mAh capacity really extends the use time, and I love that I can recharge it. No more wasting money on disposables!
S
Simone Wong
Great battery but slow shipping
This 21700 rechargeable battery is great for my devices, but I had a bit of a wait for it to arrive. Once it got here, it charged up quickly and has been reliable. Just wish I didn't have to wait so long!
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Emily Rodriguez
Good capacity, easy to recharge
This battery has fantastic capacity at 5000mAh! I appreciate how easy it is to recharge, and it fits perfectly in my flashlight. Definitely a quality product from Fenix that I will keep using.
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Aisha Khan
Perfect for my camping trips
I took the Fenix ARB-L21 battery on a recent camping trip, and it powered my lantern for hours. It's so convenient to have a rechargeable option. The build quality feels solid and durable, which is necessary for outdoor use.
WELCOME5: Use code WELCOME5 for 5% off on your first order
