Best selling Flashlight accessories from Fenix

On this page you’ll find a ranking of the best Flashlight accessories from Fenix. To give you a quick overview, we’ve added the most important product details. This page always stays fresh and updates automatically.

1. Fenix Arb-L18-3500

This rechargeable battery from Fenix is particularly suitable for use in high-performance flashlights. The battery has a voltage of 3.6 V and a capacity of 3500 mAh. With triple protection against overheating, overcharging, and over-discharging, the battery is safe to use and delivers reliable performance. Ideal for Fenix flashlights such as the PD35, PD32, TK11, TK12, TK15, TK30, and TK35. 

2. Fenix ARB-L18-3500U

The Fenix ARB-L18-3500U is a protected 18650 Li-Ion battery with a capacity of 3500 mAh from Fenix. It is ideal for Fenix flashlights designed for 18650 Li-Ion batteries, such as the Fenix PD35, PD35TAC, TK15UE (not TK15), TK16, TK35, and TK35UE. The battery is not compatible with the Fenix PD32 and FD65, as well as with flashlights that already have a USB charging option. Due to the charging electronics, the battery is approximately 0.5 mm longer than standard protected batteries. It can be charged via Micro-USB and regular Li-Ion battery chargers. Package includes: 1 piece of Fenix ARB-L18-3500U mAh. 

3. Fenix Arb-L18

Fenix Battery ARB-L18-2600 18650 Lithium-Ion Battery, 3.6 V. Suitable for high-performance flashlights. Triple overheat protection for maximum safety. Overcharge and over-discharge protection. Packaging unit: 1 piece.

This rechargeable battery from Fenix is particularly designed for use with high-lumen flashlights. The battery has a voltage of 3.6 V and a capacity of 2600 mAh. With its triple overheat, overcharge, and over-discharge protection, the battery is safe to use and delivers reliable performance.

Energy:
Voltage: 3.6 V
Capacity: 2600 mAh

Additional information:
Packaging unit: 1 piece
Battery capacity watt-hours: 9.36 Wh
Battery type form factor: 18650. 

4. Fenix Akku ARB-L21-5000U

The Fenix ARB-L21-5000U is a rechargeable 21700 Li-Ion USB battery with a capacity of 5000 mAh and an integrated micro-USB charging port. The Fenix 21700 battery can be quickly charged via the USB port without the need for a separate charger. Alternatively, it can also be charged with an external charger. Like all Fenix Li-Ion batteries, the ARB-L21-5000U is housed in a solid steel tube, significantly reducing the potential risk of short circuits due to collisions or impacts. Additionally, the Fenix ARB-L21-5000U battery is protected against short circuits, overcharging, deep discharging, and overheating.

The high-quality Fenix Li-Ion battery ARB-L21-5000U has been specifically designed for use in high-performance flashlights. With a high capacity of 5000 mAh, excellent performance, and high reliability, the Fenix 21700 battery is the best choice among rechargeable Li-Ion batteries.

Advantages of the Fenix 21700 ARB-L21 5000 mAh battery:
- Original 21700 Fenix battery with 5000 mAh, rechargeable via USB Type-C cable
- Charge status indicator with built-in LED
- Specifically designed for high-performance flashlights
- Integrated protection circuits against short circuits, overcharging, deep discharging, and overheating
- Pressure reliefs to prevent explosions
- High mechanical protection through steel casing
- Button-top design
- High quality and reliability
- Fast charging capability, approximately 500 charge cycles
- No memory effect, very low self-discharge

Technical specifications:
- Model: ARB-L21-5000U
- Battery type: Li-Ion
- Battery shape: 21700
- Capacity: 5000 mAh
- Nominal voltage: 3.6V
- Energy storage: 18Wh
- Maximum discharge current: 8A
- Charging current: USB: 2A, charger: 1A / max. 5A
- USB charging port: Yes, Type-C
- Charge cycles: 500
- Dimensions: 76 mm × ø21.5 mm
- Weight: 72.5 g. 

5. Fenix ALG-16

The Fenix ALG 16 is a lamp holder that you can attach to your weapon. It is easily adjustable with one hand and can be mounted quickly and easily. It is compatible with lamps with a diameter between 22.5 mm and 26 mm whose lamp head does not exceed a diameter of 40 mm. Integrated rubber parts protect your lamp and ensure a firm hold. It has a quick-release wheel. 

6. Fenix Akku für TK22 und PD36R

Lithium-Ion Battery with Long Runtime

With a capacity of 5000 mAh, the Type 21700 ARB-L21-5000 V2.0 battery offers extended operating time for the most powerful Fenix flashlights. Its riveted steel casing, gas pressure relief vents, and built-in electronic protection devices ensure safe operation. The Fenix ARB-L21-5000 V2.0 retains up to 75% of its original capacity after 500 complete charge and discharge cycles.

Technical Specifications

Nominal Voltage: 3.6 V
Capacity: 5000 mAh
Power: 18 Wh
Recommended Chargers:
220 V: Fenix ARE-A2 / Fenix ARE-A4
USB: Fenix ARE-D2 / Fenix ARE-D1. 

7. Fenix Kabelschalter AER-05

Cable length: 23 cm, total length: 34 cm, end cap diameter: 29 mm. Specialised for tactical torches with APF circuits. Aluminium in A6061-T6 quality. Compatible with the TK16 V2.0 torch with a 21700 rechargeable battery. 

8. Fenix ARB-L21-6000B

The Fenix ARB-L21-6000 is a powerful 21700 Li-Ion rechargeable battery that can be recharged via a standard USB type C connection. It can also be used as a power bank. This compact battery offers a capacity of 6000 mAh. The stable output current and thermal performance help to effectively prevent overheating problems. A properly maintained ARB-L21-6000 battery retains up to 75% of its original capacity even after 500 full charge and discharge cycles. The three battery level indicators on the positive terminal provide a real-time update on battery status. Model: ARB-L21-6000 Voltage: 3.6 V. Max. Discharge current: 10 A. Capacity: 6000 mAh. Weight: 80 g. Size: 22 x 77 mm. Charging current: 1.2 A (recommended); 3 A (maximum). The battery is compatible with: Fenix HT18R, HT32, TK17, TK22R, TK30R, WF25RM, LR36R, CL27R, LD45R, PD45R ACE, PD40R V3.0, PD36R V2.0. 

9. Fenix ARB-L18-4000U

High-performance rechargeable battery. With a large capacity of 4000 mAh, the 18650 ARB-L18-4000U battery offers a long operating time for the most powerful devices. Multiple safety features. The riveted steel housing, the gas vents and the built-in electronic protection devices ensure safe operation. The battery is charged directly via its USB-C port. It can also be charged with suitable chargers, e.g. with the FENIX ARE A2/A4 and ARED1/D2 chargers or directly in the lamp or device if it is equipped with a charging port. Nominal voltage: 3.6V. Capacity: 4000 mAh. Dimensions: Diameter 18.75 mm, length 72 mm. Weight: 55 g. 

10. Fenix Akku 18650 geschützt mit USB Ladefunktion, mit AccuSafe

The new, protected 18650 Li-ion battery with 3500mAh capacity and Micro-USB charging function

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Li-ion battery with 3.7 Volt voltage

- please compare the dimensions 70x18,6mm

- no memory effect, almost no self-discharge

- high performance, high power density

- but can only be charged via USB

- Capacity 3500mAh, 3.7 Volt

- Recommended charging current: 400mAh - max. 1000mAh

- Delivery with AccuCell battery box for 1-2 pieces CR 18650 battery

Thousands of customers have been waiting for this battery for years, the new 3.7 Li-ion battery in 18650 format with 3.7 Volt voltage. This Li-ion battery is charged exclusively via the integrated Micro-USB charging socket. The recommended charging current is 400mA to max. 1000mA. The integrated red LED on the head indicates the charging process, the green LED indicates the end of charging. An all around protected 3,7 Volt 18650 Li-ion battery with overcharge protection, deep discharge protection, short circuit protection as well as a temperature protection! You can find the matching micro USB charging cable here!

Technical data:

System: Li-ion battery, voltage: 3.7 Volt, capacity 3500mAh, size IEC CR 18650 , dimensions: Diameter 18.6mm, Height 70mm, Weight: 50gramm, with Micro-USB charging port.

Also ideal as Li-ion battery for the Fenix flashlights for 18650 LiIon battery such as the Fenix PD35, PD32, TK15, TK75, TK35 suitable

Attention: this Li-ion battery is charged exclusively via the integrated Micro-USB charging socket using a Micro-USB charging cable. Conventional chargers e.g. for Li-ion, NiCd, NiMH, NiZn, AccuCell RAM can not be used! 

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