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Fenix BC21R V3 FAQs

20 articles

Everything that you need to know about your Fenix BC21R V3 Bike Light

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Does the ALB-10 bike mount work with the Fenix BC21R (V1) bike light?

No, the only bike mount that is compatible with the Fenix BC21R bike light is the one that it comes with. The BC21R is discontinued, but you can view the upgraded Fenix BC21R V2.0 bike light.

Is there a screw or clamp fixing mount that is compatible with the Fenix BC21R (V1) bike light?

We do not have another mount that is compatible with the Fenix BC21R (V1) bike light. However, all current bike lights use the same mount now

Is the ALB-10 compatible with the Fenix BC21R V2 bike light?

The ALB-10 is not compatible with the BC21R V2. It will start to slide on but it will never fully latch leaving the light susceptible to falling out.

Is the BC21R (V1) compatible with any other Fenix bike mounts?

No, the BC21R (V1) uses a unique rubber strap handlebar mechanism and therefore is not compatible with the other mounts that Fenix makes.

Is the bike mount that comes with the BC21R V3 rubber or plastic?

The mounts for all current Fenix bike lights are the same and are made of high-impact plastic. This information may change in the future.

What batteries work in the Fenix BC21R V2 bike light?

The Fenix BC21R V2 bike light is compatible with one 18650 li-ion battery or two non-rechargeable CR123 lithium batteries.

Is the Fenix BC21R V2 bike light made of aluminum or plastic?

The Fenix BC21R V2 bike light is made out of a durable plastic

Which battery chargers will work with the Fenix BC21R V2 batteries?

You can use the chargers listed below to charge 18650 lithium ion batteries: ARE-X1, ARE-X2, ARE-A4, ARE-A2, ARE-D1, ARE-D2, ARE-X11. Check out our battery chargers to find one that will work for you.

Do you have any Fenix bike lights that run on AA batteries?

No, we do not have any Fenix bike lights that run on AA batteries. However, we have the BC30 V2.0 bike light that can run on CR123A batteries. This information may change in the future.

Does the Fenix BC21R (V1) bike mount allow any left-right adjustment?

Yes, the BC21R (V1) bike mount is able to turn left or right.

Who is the BC21R V2 Bike Light best for?

BC21R V2.0 is a lightweight bicycle light, the battery of it is replaceable and rechargeable. Dual Distance Beam System, 1000 lumens max output, all-metal heat fins and IP66 rated protection; users will be at ease in harsh outdoors. In addition, feat

What battery is used in the BC21R V3?

The Fenix BC21R V3 bike light includes one ARB-L18-2600 rechargeable 18650 battery. It is compatible with any button-top 18650 battery or two non-rechargeable CR123A batteries. Using CR123A batteries may no give the full advertised brightness and run

Does the Fenix BC21R V2 have a memory function?

No, the light will turn on in the Low setting each time it is activated.

What LED is used in the BC21R V3?

The BC21R V3 uses the SST40 LED which has a lifespan of 50,000 hours.

Does the BC21R V2 flashlight have overheat protection?

Yes. The light will accumulate a lot of heat when used on Turbo for extended periods. To ensure safe use, the light will automatically step down a few lumens to reduce the temperature. When the temperature has reduced, it will then allow the user for

What is the color temperature and working voltage of the BC21R V3?

The color temperature of the BC21R V3 is around 6000K. The working voltage of the BC21R V3 is 3.6V.

How long does it take to recharge the BC21R V3?

The BC21R V3 will charge the included ARB-L18-2600 18650 battery in about 2 hours. The battery indicator will be red while charging and turn green when it is full.

Is the BC21R V3 rechargeable?

Yes the BC21R V3 is rechargeable via a built-in USB Type-C charging port!

How can I prevent accidental activation of the BC21R V3?

The BC21R V3 bike light does not feature a lockout function but you can prevent accidental activation of the light by unscrewing the tail cap a small amount or removing the battery while it is not in use.

Why does the BC21R V3 sometimes downshift to a lower output level?

There are two reasons that this might happen. First, the light features Intelligent Overheat Protection which may be triggered after a period of use because high-powered LED lights can generate a lot of heat. When the light reaches 140° F (60° C), th