OUTDOOR10
The Fenix BC45R is a top-of-the-line rechargeable cycling headlight designed for cyclists who refuse to compromise on their nighttime rides. With up to 3,300 lumens of power and a 286-meter beam distance, you can turn even the darkest trail into a well-lit path.
The headlight combines independently controlled wide and far lights, so you can tailor the lighting to the current situation on the trail. Premium construction from aircraft-grade aluminum alloy, IP66 waterproofing and wireless remote control make it a reliable partner for night training, descents and daily commutes.
Package contents: headlamp, 2× Fenix ARB-L18-3400, USB-C cable, mount with spacers, wireless remote control, CR1632 battery, spare sealing ring
Warranty: five years on the headlamp, two years on the batteries.
- Perfect overview thanks to OLED display and wireless control
The integrated OLED display keeps you informed about the current lighting mode and battery charge status at all times, so you will never be surprised by a sudden shutdown; the included wireless remote control, mounted on the handlebars, also allows you to conveniently switch between both reflectors and instantly activate the Turbo mode without having to touch the headlamp directly. - Quick charging and easy battery replacement directly in the field
Two interchangeable 18650 Li-ion batteries with a capacity of 3,400 mAh are charged directly in the headlamp via the waterproof USB-C connector with support for fast charging at 18 W (9 V/2 A), and can be easily removed and replaced with a spare set if needed, giving you virtually unlimited autonomy on long trips.
- Up to 3,300 lumens (ANSI) of light output
- 286 meters (20,486 cd) of range
- Independently controlled remote and wide light
- Luminus SFT-40 + four SST-12 LEDs
- OLED display – mode, brightness, battery status
- Wireless remote control included in the package
- USB-C charging, 18 W fast charging
- 2× 18650 batteries, 3,400 mAh in the package
- Quick-release mount – tool-free installation
- Handlebar diameter 22-32 mm
- IP66 waterproofing, 1.5-meter drop test
- Aircraft-grade A6061-T6 body material
- Up to 59 hours (50 lumens) of runtime
Specifications:
Light source: Luminus SFT-40 + 4× SST-12, 50,000-hour lifespan
Maximum light output: 3,300 lm (ANSI)
Range: 286 m / 20,486 cd
Turbo: 3,300 lm / 3 h
Remote light (High beam): 2,000 lm / 5 h 15 min → 800 lm / 6 h 15 min → 200 lm / 16 h 45 min
Wide light (Low beam): 1,500 lm / 5 h 30 min → 800 lm / 6 h 15 min → 200 lm / 20 h 15 min → 50 lm / 59 h
Warning flash: 800-100 lm
Power supply: 2× Li-ion 18650 (Fenix ARB-L18-3400, 3,400 mAh) – included in the package
Charging: USB-C, 18 W fast charging (9 V / 2 A)
Display: OLED
Waterproofing: IP For turning on or off a specific reflector, hold the corresponding button for about 0.5 seconds. Once the light is on, you can cycle through the power levels with short presses. The flashlight remembers the last selected fixed mode (except for Turbo and Flash).
Locking the flashlight: If the flashlight is off, press any button twice quickly. The light will flash twice in the lowest mode, signaling that it is locked against accidental activation (e.g. in a backpack). To unlock, repeat the process.
Pairing the remote control: Before the first use, the remote control needs to be paired. Hold any button on the flashlight for 5 seconds. The OLED display will show “Connecting”. Then, press any button on the remote control. The display will show “Pair?” and you can confirm the pairing process with a single press of the flashlight button. “Connected!” will appear as an indicator of successful pairing. This process only needs to be performed once, the pairing will be stored in the memory.
Controlling with the remote control: The remote control has buttons for the far and wide light (which work the same as on the flashlight) and an additional function button with a lightning symbol. A short press of the function button while the flashlight is on will activate the TURBO mode (3300 lm) instantly. A double press of the function button will activate the warning FLASH mode. A further press will return to the previous mode. If you hold the function button for 1.5 seconds, the flashlight will enter Sleep mode and the display will turn off. To wake it up, just press any button. If the flashlight is left in sleep mode for more than 2 hours, it will automatically turn off completely.
OLED display and battery indicator: After the flashlight is turned on, the display is activated and constantly shows the brightness level, the selected mode and the battery icon. If the battery capacity drops below 10%, the battery icon will start to flash to remind you to recharge. At that point, the flashlight will automatically limit the maximum available power to 200 lumens for the far light and 50 lumens for the wide light for safety reasons, to ensure a safe ride to the destination.
Intelligent overheat protection: If the flashlight heats up above 55 °C, the power will be gradually reduced automatically. Once the temperature has dropped below 50 °C, the power output will increase again.
Charging the Flashlight
Turn off the flashlight and lift the rubber dust cap on the bottom. Connect the USB-C cable to the charging port of the flashlight.
During charging, the OLED display shows a charging icon. After full charging (and disconnecting the cable), a full battery icon is displayed.
After charging is complete, make sure to close the dust cap completely to ensure water resistance.
The time it takes to fully charge the batteries (when using the 9 V/2 A fast charging adapter) is approximately 3.5 hours.
You can use the flashlight in Eco/Low/Medium mode for the wide beam and Low/Medium mode for the long beam while it is charging, but this will prolong the charging time. The wireless remote control cannot be used while charging.
Replacing the Batteries in the Flashlight
Turn the lock on the rear cover in the direction of the “OPEN” logo and pull the battery housing out of the flashlight.
Insert both 18650 batteries according to the polarity markings on the housing. Do not mix old and new batteries or batteries with different capacities!
Push the battery housing back into the flashlight. Once it is aligned, secure it by turning the lock in the direction of the “OPEN” logo.
Replacing the Batteries in the Remote Control
Insert a coin into the slot on the rear side of the remote control and open the cover by turning it counterclockwise.
Replace the CR1632 battery. Make sure the polarity is correct.
Close the cover and secure it by turning the coin clockwise.
Warning
Do not open sealed parts of the flashlight yourself, as this will void the warranty.
The flashlight generates a lot of heat when operating at high power. Avoid touching the hot body of the flashlight.
If the flashlight flickers or does not light up, the following may be the cause:
- The batteries are flat – charge them or replace them.
- The contacts on the connectors or in the battery housing are dirty. Clean them with a cotton swab dipped in alcohol.
Fenix is the high-tech leading brand for outdoor sports lighting including high-end flashlights, headlamps, bicycle lights, camping lanterns, headlamps, rechargeable flashlights and accessories



































