
Best selling Flashlight accessories
Here’s a ranking of the best selling Flashlight accessories. To give you a quick overview, we’ve added the most important information about each product. 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. Nitecore Intelligent Battery System NL2150HPi - Set 2
The Nitecore Intelligent Battery System NL2150HPi is a sophisticated gadget and a must-have for any tech enthusiast.
The components of the Battery System include an NL2150HPi battery with 5000mAh, the MC21 magnetic charger, the ML21 magnetic lantern, and the MPB21 magnetic power bank adapter.
The three magnetic components MC21, ML21, and MPB21 can be attached to the front of the NL2150HPi battery. This allows the battery to be charged, used as a power bank, or utilized as a lantern.
Due to their compact size and lightweight design, these products are excellent for all outdoor activities.
Technical specifications:
- Length (mm): 75
- Diameter (mm): 21
- Weight (g): 83
- NL2150HPi (g): 76
- MC21 (g): 7
- Voltage: 3.6
- Capacity (mAh): 5000
ML21 Magnetic Light Brightness: 80 Lumens
Color Temperature: 4000-4500K
Runtime: 19h
Beam Diameter: 12m
Peak Beam Intensity: 9cd
21700 i-Series Battery Model: NL2150HPi
Included in the package: 1 x Nitecore NL2150HPi battery with 5000mAh, MPB21 power bank adapter, and ML21 lantern.

3. 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.

4. 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.

5. Ledlenser Magnetic cable
Highlights magnetic charging cable Type A. This magnetic charging cable, with a length of 120 cm, allows for safe and easy charging of all compatible Ledlenser products that feature the appropriate Magnetic Charge System. In addition to the magnetic connector, the charging cable also has a standard USB-A plug.

6. 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.

7. Ledlenser Rechargeable Li-Ion battery 18650
This extremely powerful Li-Ion battery with 3.6 V and 3000 mAh is fully charged in 360 minutes. With up to 1000 charge cycles, it is perfect as a replacement battery for emergencies or prolonged activities in remote areas.

8. Nitecore Li-Ion battery type 16340 - NL166
The Nitecore Li-Ion battery type 16340 (NL166) is a powerful and reliable battery specifically designed for use in flashlights and similar accessories. With a capacity of 650 mAh and a voltage of 3.7 V, this battery provides an optimal energy source for devices that require a constant and long-lasting power supply. The battery is equipped with a protection circuit that safeguards it against short circuits, overcharging, and deep discharging, enhancing its safety and longevity. Made from a high-quality Sanyo cell, the NL166 ensures high performance and reliability. With a compact design and a weight of only 18 g, this battery is easy to transport and ideal for use on the go. It is the perfect choice for anyone looking for a robust and efficient battery for their flashlight.
- Protection circuit against short circuits, overcharging, and deep discharging
- Made from a high-quality Sanyo cell
- Optimal energy source for flashlights and similar accessories
- Compact design for easy handling and transport.

Nitecore Li-Ion battery type 16340 - NL166
9. Fenix FNX ARB-L16-800UP
Li-ion rechargeable battery - Fenix ARB-L16-800UP - type 16340 with USB-C charging connection. Charging takes place directly via a USB-C cable or a compatible charger. The integrated protection devices protect the battery from overcharging, deep discharge and short circuits. The steel outer casing effectively protects it from damage caused by external influences. Suitable for torches, headlamps, bicycle headlamps and camping lanterns with a 16340 rechargeable battery. The charging indicator at the positive (+) end of the battery clearly shows the charging progress (red = charging, blue = ready for use). Fast charging with 0.5 A, the battery is fully charged in just 2 hours. Retains up to 70 % of its capacity after 500 charging cycles. Charging options: USB-C cable, charger such as Fenix ARE-D1, ARE-D2, ARE A2, ARE-A4. Multiple battery protection (overcharge protection, deep discharge protection, short-circuit protection, overheating protection). The steel protective structure effectively protects the battery from possible short circuits and other risks due to shocks. USB-C cable not included in the scope of delivery.

10. Nitecore Nylon holster NCP30 - black
The Nitecore NCP30 is a durable, multifunctional holster that is ideal for carrying flashlights and multitools. The holster also features a small side pocket for carrying tactical pens and flashlights. Made from military-standard nylon, the holster is tough and robust, with ten times the abrasion resistance of cotton. The NCP30 can be easily mounted on a waistband or other MOLLE systems. The Nitecore holster includes a quick-release cover to protect its contents and can be conveniently operated with just one hand. Available in black or khaki, please select from the dropdown menu. Compatible Nitecore flashlights include EA21, EC20, EC25, MT25, MT2C, MT20C, MT06, P20, P20UV, P10, P12, SRT5, MH2C, MH10, and MH12.
